Coherent Diamond FLQ Operator's Manual

Operator’s Manual

Product Numbers:

10W, 20W, 30W, 50W& 100W Fiber Marking Lasers

[Type a quote from the document or
the summary of an interesting point.
You can position the text box
anywhere in the document. Use the
Drawing Tools tab to change the
formatting of the pull quote text box.]

Diamond FLQ

FLQ-1064- XXXX-YZ

G026DOC Rev. U– November 2017

Page 2 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

1. Preface

Thank you for purchasing the Diamond FLQ™ fiber laser. The Diamond FLQ laser is a pulsed fiber
marking laser nominally delivering 1 mJ pulse energy with a fast turn-on time and high peak power over a
wide range of repetition rates, which maximizes production throughput and marking capability. With its
near single-mode beam quality, the Diamond FLQ laser can produce ultra-fine, crisp marks every time.
Wide adjustability and stable operation, coupled with on-board optical monitoring, ensuring robust
operation, even in the most adverse operating environments. Your Diamond FLQ laser comes complete
with industry standard interfaces for easy integration; the system is pumped by single-emitter diode
lasers, which offer long lifetime and maintenance free operation.

This manual is intended for experienced Original Equipment Manufacturer (OEM) customers familiar
with integration and control of electronic sub-systems. If you have questions or comments about any
section of this manual, please call Coherent | Nufern’s Help Line (8 AM to 5 PM EST) or email us:

Within U.S. Call Toll-free:
[phone]

From outside the U.S. Call:
1-860-408-5000

Email: [e-mail]

1.1 Product Naming Convention

This manual covers the various configurations of the Diamond FLQ laser.

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

DANGER

Indicates an imminently hazardous situation that, if not avoided, will result in
death or serious injury.

WARNING

Indicates a potentially hazardous situation that, if not avoided, could result in
death or serious injury.

CAUTION

Indicates a potentially hazardous situation that, if not avoided, may result in
minor or moderate injury.

NOTICE

Possibly dangerous situation, goods might be damaged.

INPORTANT

Helpful information.

1.2 Symbols used in this manual

Page 3 of 38

1.3 Acronyms used in this manual

The following acronyms are used in this manual:

MO: Master Oscillator
FA: Fiber Amplifier
PRR: Pulse Repetition Rate
OEM: Original Equipment Manufacturer
GND: Electrical Ground
TTL: Transistor-to-Transistor Logic 5V Signal Level Standard
SDS: Safety Data Sheet

Page 4 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Table of Contents

1. Preface................................................................................................................................................... 2

1.1 Product Naming Convention ......................................................................................................... 2

1.2 Symbols used in this manual ......................................................................................................... 3

1.3 Acronyms used in this manual ...................................................................................................... 3

2. Safety & Compliance ............................................................................................................................ 6

2.1 Warnings ....................................................................................................................................... 6

2.2 Safety Resources ........................................................................................................................... 8

2.3 Certifications and Compliance ...................................................................................................... 8

2.3.1 RoHs ..................................................................................................................................... 9

2.3.2 REACH ................................................................................................................................. 9

2.4 Safety Label ................................................................................................................................ 10

2.5 Laser Aperture label .................................................................................................................... 10

3. GETTING STARTED ........................................................................................................................ 11

3.1 Unpacking the Laser ................................................................................................................... 11

3.1.1 Package Contents ................................................................................................................ 11

3.1.2 Operator’s Manual .............................................................................................................. 11

3.1.3 Initial Inspection ................................................................................................................. 11

3.2 Diamond FLQ Laser Details......................................................................................................... 12

3.2.1 Front Panel View ................................................................................................................ 12

3.2.2 Rear Panel ........................................................................................................................... 13

3.2.3 25-Pin Interface Communications....................................................................................... 13

3.2.3.1 Input Signals - Pin Description ....................................................................................... 15

3.2.3.2 Output Signals - Pin Description..................................................................................... 16

3.3 Laser Installation ......................................................................................................................... 17

3.3.1 Mounting the Laser ............................................................................................................. 17

3.3.2 Mounting the Termination Housing .................................................................................... 17

3.3.3 Electrical Connections ........................................................................................................ 17

3.4 Starting Up the Laser .................................................................................................................. 18

3.4.1 Laser Start-Up Using DB25 Parallel Interface .................................................................... 18

3.4.2 Turn on the Visible Pointer ................................................................................................. 20

3.4.3 Laser Start-Up Using RS-232 Interface .............................................................................. 20

3.4.4 Laser Troubleshooting Using Digital Control Software ..................................................... 20

4. MAINTENANCE ............................................................................................................................... 21

5. TROUBLESHOOTING / CUSTOMER SERVICE ........................................................................... 21

Page 5 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

5.1 Diamond FLQ Help Line ............................................................................................................ 21

6. NOTICES ............................................................................................................................................ 21

7. SPECIFICATIONS (Typical, see Nufern.com for current data) ........................................................ 22

8. MECHANICAL DRAWINGS ........................................................................................................... 23

8.1 FLQ-1064-0010-YZ, FLQ-1064-0020-YZ and FLQ-1064-0030-YZ ........................................ 23

8.2 FLQ-1064-0050-YZ .................................................................................................................... 24

8.3 FLQ-1064-0100-YZ .................................................................................................................... 25

9. OPERATING THE LASER WITH RS-232 INTERFACE ................................................................ 27

9.1 RS-232 Interface ......................................................................................................................... 27

9.2 RS-232 Command List ............................................................................................................... 27

9.3 Detailed Command Description .................................................................................................. 28

9.4 Examples ..................................................................................................................................... 35

9.4.1 Example #1 ......................................................................................................................... 35

9.4.2 Example # 2 ........................................................................................................................ 36

9.4.3 Example # 3 ........................................................................................................................ 37

10. WARRANTY ................................................................................................................................. 38

RoHS Compliance Table .......................................................................................................... 9

Location of Safety & Laser Aperture Labels .......................................................................... 10

Front Panel Connections ......................................................................................................... 12

LED Status Indication ............................................................................................................. 13

DB25 Digital Interface (All Pins TTL Compatible, see note 1) ............................................. 14

Nominal Power Set Point Mapping for FLQ-1064-XXXX-YZ .............................................. 15

Status Monitors ....................................................................................................................... 17

Power Supply Requirements ................................................................................................... 18

Min/Max Timing Settings ....................................................................................................... 19

Digital Control Software Interface Connection ...................................................................... 20

Laser Housing of FLQ-1064-0010-YZ, FLQ-1064-0020-YZ, and FLQ-1064-0030-YZ ....... 23

Output Device of FLQ-1064-0010-YZ, FLQ-1064-0020-YZ, and FLQ-1064-0030-YZ ....... 24

Laser Housing of FLQ-1064-0050-YZ ................................................................................... 24

Output Device of FLQ-1064-0050-YZ ................................................................................... 25

Parameters for-RS 232 Interface ............................................................................................. 27

Customer Accessible RS-232 Command List ......................................................................... 28

Front Panel Connections for Operating the Laser with RS232 Interface ................................ 36

Page 6 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Invisible & Visible Laser Radiation.
Avoid Eye or Skin Exposure to Direct or Scattered Radiation.

Your Diamond FLQ Fiber Laser emits invisible infrared pulsed Class 4 laser radiation
(nominally up to 110 W at 1064 nm). This device should not be operated unless all appropriate
safety precautions are taken. Precautions must be observed whenever DC power is supplied to
the laser and must be sufficient for the full range of optical parameters described below.
Improper use of this device can cause personal injury, permanent eye damage, blindness, and
possibly death. The laser beam is collimated so the hazards apply at long as well as short
distances from the aperture. Under no circumstances should your Diamond FLQ laser be
pointed at any person, animal, or flammable or explosive materials. Laser radiation, whether
direct emissions or scattered and/or reflected light, can be harmful. This light will also generate
a significant amount of heat, and care should be taken not to start a fire.

 0.9–1.2 µm (1.064 µm nominal) Output Wavelength. < 150 W Average Power Max.
 < 40 kW Peak Power Max., 50–500 nsec Pulse Duration
 0.6–0.7 µm (0.658 µm nominal) Output Wavelength. 1 mW Average Power Max.

Follow all Laser Safety Procedures

The Diamond FLQ laser should not be supplied with external DC power unless all laser safety
precautions are followed. These safety precautions include and are not limited to the following:

 Wearing appropriate safety glasses by all personnel in the vicinity of the laser who

could be exposed to direct or indirect radiation within the full range of optical
parameters described above.

 Installing appropriate warning signs and using safety curtains or enclosures.
 Implementing safety interlocks to avoid accidental exposure laser radiation.
 Taking appropriate precautions when using the Diamond FLQ with other optical

instruments as they may increase eye hazard.

 Containing the beam to eliminate or minimize the possibility of exposure to the beam.
 Use of the Diamond FLQ laser other than as specified herein may result in hazardous

radiation exposure.

DANGER

2. Safety & Compliance

The Diamond FLQ fiber laser from Coherent|Nufern emits invisible laser radiation. Avoid eye or skin
exposure to direct or scattered radiation. The Diamond FLQ fiber laser is a pulsed laser with a nominal
output wavelength of 1.064 µm up to 110 W average power, 12 kW peak power, 20–200kHz PRR and
80-500 nsec pulse duration.

2.1 Warnings

Page 7 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Avoid exposure to potentially hazardous materials.

Laser processing of materials can produce contamination such as vapors, fumes, and particles
that can be potentially hazardous (noxious, poisonous, toxic, explosive, and corrosive). Always
review the SDS information for any materials being processed. Make sure to provide adequate
ventilation, flame or explosion control and filtration before venting any by-products.

Diamond FLQ laser is ESD sensitive

The electronics board in the Diamond FLQ laser has components sensitive to electrostatic
discharge (ESD). Please exercise standard ESD mitigation practices while handling the laser
and making electrical and interface connections to the laser.

Diamond FLQ laser is NOT user serviceable

Do not remove any of the panels or attempt to service this unit. There are electrical and optical
hazards present inside the chassis. Unit should be serviced by trained Coherent|Nufern
personnel only. Opening of this case will also void the warranty.

American National Standards Institute (ANSI) Z136.1 has created a document titled “Safe Use
of Lasers” for reference. This document should be used as a standard for implementing your

own laser safety program. Key points to consider include establishing a Laser Safety Officer
(LSO) for your organization, and operating the laser in an area of limited access with proper
warning signs and interlocks. Under no circumstances should this device be serviced by anyone
other than the trained personnel at Coherent|Nufern.

IMPORTANT

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

For additional information the following safety resources are also provided:

American National Standards Institute (ANSI)
Safety Standards for Laser Users
New York, NY
Phone: [phone]
www.ansi.org

Center for Devices & Radiological Health (CDRH)

Center for Devices and Radiological Health
U.S. Food and Drug Administration
10903 New Hampshire Avenue
WO66-4521
Silver Spring, MD 20993
www.fda.gov/cdrh/

Laser Institute of America

Safety Standards for Laser Users
13501 Ingenuity Drive, Suite 128
Orlando, FL 32826
Phone: [phone] or [phone]
Fax: [phone]
www.laserinstitute.org

Occupational Safety & Health Administration (OSHA)

U.S. Department of Labor
Occupational Safety & Health Administration
200 Constitution Avenue
Washington, D.C. 20210
www.osha.gov

This product is specifically designed to be an OEM laser device for incorporation or integration
into other equipment. As such, it DOES NOT MEET the full requirements for a complete laser
system as defined by 21 CFR 1040.10 and 1040.11 under the Radiation Control for Health and
Safety Act of 1968 and EN 60825-1. It is the responsibility of the purchaser to meet all of the
regulatory requirements for the complete laser system defined in IEC60825-1 (latest revision).

IMPORTANT

2.2 Safety Resources

Page 8 of 38

2.3 Certifications and Compliance

Page 9 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Restricted Substance

Max. Concentration Value

Lead

0.1%

Mercury

0.1%

Hexavalent Chromium

0.1%

Polybrominated Biphenyls, PBBs

0.1%

Polybrominated Diphenylethers, PBDEs

0.1%

Cadmium

0.01%

Coherent|Nufern certifies that this device was tested and found to meet the published specifications prior
to shipping. Upon the receipt of this package, please inspect contents for any possible damage that may
have occurred in shipping. Please report any shipping damage immediately to the factory at 1-888-684­3577
(8 AM to 5 PM EST) or email us at [e-mail].

2.3.1 RoHs

Coherent|Nufern certifies that it has assessed the Diamond FLQ laser in relation to the requirements of the
RoHS Directive1, and that it conforms in full to the requirements thereof, that the product does not
contain any of the following restricted substances in excess of the indicated Maximum Concentration
Values.

RoHS Compliance Table

1"RoHS Directive” means Directive 2011/65/EU of the European Parliament and of the Council of 8
June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic
equipment (recast).

2.3.2 REACH

Coherent|Nufern also certifies that it has assessed the Diamond FLQ laser in relation to the requirements
of the REACH.

Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) is a European Union
regulation dated 18 December 2006.

REACH addresses the production and use of chemical substances, and their potential impacts on both
human health and the environment.

For additional information on chemicals, please contact Coherent|Nufern.

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

B

A

2.4 Safety Label

A.

Page 10 of 38

2.5 Laser Aperture label

B.

Location of Safety & Laser Aperture Labels

Page 11 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

3. GETTING STARTED

The Diamond FLQ™ fiber laser from Coherent|Nufern is a pulsed marker delivering 1 mJ pulse energy
with a fast turn-on time and higher peak power over a wide range of repetition rates, which maximizes
production throughput and marking capability. With its single-mode beam quality, the Diamond FLQ
laser can produce ultra-fine, crisp marks every time. Wide adjustability and stable operation, coupled
with on-board optical monitoring, ensures robust operation, even in the most adverse operating
environments. The system is pumped by single-emitter diode lasers, which offer long lifetime and
maintenance-free operation. A DB25 interface is provided to match the industry standard for simple drop­in replacement. The laser can also be operated with an RS-232 interface.

3.1 Unpacking the Laser

3.1.1 Package Contents

Please check the shipping container to make sure you have identified each of the following
items. Please report any omissions immediately to Coherent|Nufern.

 Diamond FLQ Laser
 Input power cable (based on model)

o E012CBL – ferrule end terminals, 10-30W
o E013CBL – spade end terminals, 10-30W
o E029CBL - ferrule end terminals, 50W
o E030CBL - spade end terminals, 50W
o E036CBL – spade end terminals, 100W

 Final Test Report

3.1.2 Operator’s Manual

The Diamond FLQ product manual is available on Coherent|Nufern’s website;

www.Nufern.com under Products Fiber Lasers.

If it is not accessible or you want a hard copy, please contact Coherent|Nufern.

3.1.3 Initial Inspection

Upon delivery of your Diamond FLQ Laser, please inspect all packaging for evidence of
mishandling or damage. If you find any evidence of mishandling, please photograph these
findings and save the damaged shipping materials. Carriers do not accept claims for damage
during transit without the original shipping material. All shipping damage is the responsibility
of the shipping company. Please report this information to the shipping company and
Coherent|Nufern.

Inspect the laser for any physical damage. Check the fiber delivery cable for any kinks, tight
bend radii (minimum static bend radius for the cable is 30mm) or other damage. Check the
output device (refer to Figures 11 and 13) for any damage. Inspect the laser housing for dents or
damage to connectors. If more than cosmetic damage is observed, please contact the
Coherent|Nufern Help Line at 1-888-684-3577 (8 AM to 5 PM EST) or email us at

[e-mail].

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Front Panel on 10, 20, 30 and 50W Models

Front Panel on 100W Model

3.2 Diamond FLQ Laser Details

This section provides detailed information about the front panel connections, the placement of
cooling fans on the rear panel view, the electrical connections, the DB25 and R232 interfaces and
the pin descriptions and functions.

Front Panel Connections

Page 12 of 38

3.2.1 Front Panel View

1. 24 Volt DC Input: As supplied, see section 3.1. Please refer to the label on the cable for the
circuit connections.

2. PRR Output: This connector provides an output signal indicating when RF power is supplied
to the Q-switch in the Master Oscillator (MO). This signal will mimic the pulse repetition rate
(PRR) of the MO. This can be used as a diagnostic tool and can also be used to synchronize
other electronics in a laser processing system.

3. Gate Signal: The gate signal is logically OR’ed with the Pin 19 signal on the DB25 interface.

4. PRR Input: The optional PRR input signal is provided for customers to use a BNC cable to
provide the PRR signal to the laser. This input is logically OR’ed with Pin 20 of the DB25
connector.

5. Status LEDs (Red/Green): The two LED indicators provide status of the laser. Figure 4
summarizes the information conveyed by these two LEDs.

6. DB25 Interface Connector: The 25-pin connector can be used to control and monitor the
Diamond FLQ laser. Detailed PIN information is discussed in Sections 3.2.3 and 3.4.1.

Page 13 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

LED Status

Laser Status

Action Required

Green LED On
Red LED Off

DB25 interface detected, status OK

None

Green LED Blinking
Red LED Off

RS-232 interface, status OK

None

Green LED On or Blinking
Red LED On

Error detected

Check the laser status using the alarm
pins on the DB25 interface or the
“GERR” RS-232 command. After
correcting the source of the error,
clear the error by sending the
“RESERR” RS-232 command or by
cycling the 24VDC power supply. If
the error persists, call
Coherent|Nufern at 1-888-684-3577.

Green LED On or Blinking
Red LED Blinking

Internal error detected

Cycle the 24 VDC power supply. If
error persists, call Coherent|Nufern at
1-888-684-3577.

Do not obstruct air flow

Do not obstruct air flow. All fans must remain unobstructed in order to properly cool the
Diamond FLQ laser. Failure to provide adequate cooling can shorten lifetime and/or impair
performance of the laser. For 10W, 20W, 30W and 50W lasers ensure that >100 cfm

(0.047m3/s) of air flow is provided. For 100W lasers ensure that > 150 cfm (0.071m3/s) of
air flow is provided.

NOTICE

7. RS-232 Communications: The 9-pin connector can be used to control and monitor the laser
in RS232 mode. Detailed information on how to operate the laser in RS232 mode is discussed
in Section 9.

LED Status Indication

3.2.2 Rear Panel

3.2.3 25-Pin Interface Communications

The 25-pin connector can be used to control and monitor the Diamond FLQ laser with TTL
signals at the individual pins. Note that the RS-232 interface can be used in conjunction with the
DB25 interface. Figure 5 outlines the functions of these connector pins.

Page 14 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Pin(s)

Description

Specification

1- 8

Bit 0 to Bit 7 of Power Setting (Input),
respectively

TTL input
0: Minimum power, 255: Maximum power

9

Latches power on low to high transition
(Input)

TTL input,
The minimum period between two latch signals is
1 msec.; 1 µsec. hold time required.

10-15

Ground

16

Alarm 0 Output

TTL output, Refer to Figure 7

17

Auxiliary 5V Input (Optional)

5 ± 0.2 V; 700 mA typical current consumption,
1400 mA max.

18

Master Oscillator Enable 1 = On, 0 = Off
(Input)

TTL input.
This pin has to be set to TTL high 200 µs prior to
Pin 19 being set to TTL high.

19

Amplifier Enable 1 = On, 0 =Off (Input)

TTL input.
Rising edge triggered. Amplifier may not be
enabled when visible pointer is enabled. See Pin
22 description.

20

Pulse Repetition Rate (Input)

TTL input, (20 kHz to 100 kHz) ± 2%,
Minimum 20 kHz, for FLQ-1064-0010-YZ
TTL input, (20 kHz to 100 kHz) ± 2%,
Minimum 20 kHz, for FLQ-1064-0020-YZ
TTL input, (30 kHz to 100 kHz) ± 2%,
Minimum 30 kHz, for FLQ-1064-0030-YZ
TTL input, (50 kHz to 200 kHz) ± 2%,
Minimum 50 kHz, for FLQ-1064-0050-YZ
TTL input, (100 kHz to 200 kHz) ± 2%,
Minimum 100 kHz, for FLQ-1064-0100-YZ

21

Alarm 1 Output

TTL output, Refer to Figure 7

22

Visible Pointer Enable 1= On, 0= Off
(Input)

TTL input
Visible pointer may not be enabled when
amplifier is enabled. See Pin 19 description.

23

Enable 1= Normal Operation
0= Laser Disable (Input)

TTL Input

24

Ground

25

Not connected

DB25 Digital Interface (All Pins TTL Compatible, see note 1)

Note 1. V
V

is 1.35V typ.

INL

is 3.85V typ.

INH

VOL is 0.4V typ.

VOH is 4.6V typ.

Page 15 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

8 Bit Value

10W

20W

30W

50W

100W

0 – 6

Approximately 0.2W (MO Only)

7 – 12

1.0

2.0

3.0

5.0

2.4

13 – 19

1.0

2.0

3.0

5.0

4.9

20 – 25

1.0

2.0

3.0

5.0

7.3

26 – 31

1.0

2.0

3.0

5.0

9.8

32 – 38

1.3

2.5

3.8

6.3

12.2

39 – 44

1.5

3.0

4.5

7.5

14.6

45 – 51

1.8

3.5

5.3

8.8

17.1

52 – 57

2.0

4.0

6.0

10.0

19.5

58 – 63

2.3

4.5

6.8

11.3

22.0

64 – 70

2.5

5.0

7.5

12.5

24.4

71 – 76

2.8

5.5

8.3

13.8

26.8

77 – 82

3.0

6.0

9.0

15.0

29.3

83 – 89

3.3

6.5

9.8

16.3

31.7

90 – 95

3.5

7.0

10.5

17.5

34.1

96 – 102

3.8

7.5

11.3

18.8

36.6

103 – 108

4.0

8.0

12.0

20.0

39.0

109 – 114

4.3

8.5

12.8

21.3

41.5

115 – 121

4.5

9.0

13.5

22.5

43.9

122 – 127

4.8

9.5

14.3

23.8

46.3

128 – 133

5.0

10.0

15.0

25.0

48.8

128 – 133

5.0

10.0

15.0

25.0

51.2

134 – 140

5.3

10.5

15.8

26.3

53.7

141 – 146

5.5

11.0

16.5

27.5

56.1

147 – 153

5.8

11.5

17.3

28.8

58.5

154 – 159

6.0

12.0

18.0

30.0

61.0

160 – 165

6.3

12.5

18.8

31.3

63.4

166 – 172

6.5

13.0

19.5

32.5

65.9

173 – 178

6.8

13.5

20.3

33.8

68.3

179 – 184

7.0

14.0

21.0

35.0

70.7

185 – 191

7.3

14.5

21.8

36.3

73.2

192 – 197

7.5

15.0

22.5

37.5

75.6

198 – 204

7.8

15.5

23.3

38.8

78.0

205 – 210

8.0

16.0

24.0

40.0

80.5

211 – 216

8.3

16.5

24.8

41.3

82.9

217 – 223

8.5

17.0

25.5

42.5

85.4

224 – 229

8.8

17.5

26.3

43.8

87.8

230 – 235

9.0

18.0

27.0

45.0

90.2

236 – 242

9.3

18.5

27.8

46.3

92.7

243 – 248

9.5

19.0

28.5

47.5

95.1

249 – 254

9.8

19.5

29.3

48.8

97.6

255

10.0

20.0

30.0

50.0

100.0

3.2.3.1 Input Signals - Pin Description

Pins 1 to 8: Power Setting

Figure 6 shows the correspondence between the 8-bit value latched on pins 1–8 of the
DB25 connector and the resulting optical power.

Nominal Power Set Point Mapping for FLQ-1064-XXXX-YZ

Page 16 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Pin 9: Latch

Once the laser power bits (Pin 1-8) have been sent, it is necessary to latch the signal for the
laser power to be updated accordingly. A TTL low to high signal transition on Pin 9 is
required to update the set power.

Pin 17: Auxiliary 5 V Input

If the optional auxiliary 5V input is provided to Diamond FLQ, the microcontroller and the
optional visible pointer can be operated even when the 24 V input is turned off.

Pin 18: MO On/Off

The Diamond FLQ pulsed laser manages the MO turn on and off internally. This pin must
be set at TTL high 200 µs prior to Pin 19 being set to TTL high. This is required to

ensure proper turn-on of the laser. It is recommended to keep this pin set at the TTL
high state for optimal performance.

Pin 19: FA On/Off

A rising edge of the signal on pin 19 will turn on the laser, while a low signal will turn off
the laser.

Pin 20: PRR Input

An input signal at the desired pulse repetition rate (PRR) is sent through this pin. The
rising edge of signal triggers the laser. The TTL signal should have a duty cycle between
20% and 80%. For optimal performance, we recommend that the PRR be set to the desired
frequency before setting the FA(Pin 19) signal.

Pin 22: Visible Pointer Enable

A TTL high signal will turn on the visible pointer. The visible pointer may not be enabled
when amplifier is enabled. See Pin 19 description for controlling the amplifier.

Pin 23: Enable Input

If this pin is set to TTL high, the laser operates normally. If this pin is set to TTL low, the
laser is disabled.

3.2.3.2 Output Signals - Pin Description

Pins 10-15 and 24: Ground for DB25

Pins 10–15 and 24 are connected to the ground for the DB25 control signals. Note that this
ground is electrically isolated from the 24V ground.

Pins 16 and 21: Status Monitors

Pins 16 and 21 together provide information regarding the status of the laser. Figure 7
summarizes the possible combinations and the corresponding definitions.

Pin 25: Not Connected

Page 17 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Condition

Alarm 0 State
(Pin 16)

Alarm 1 State
(Pin 21)

Laser Not Ready (Over Temperature, E-Stop, 24V Supply Off)

LOW

LOW

Normal Operation

LOW

HIGH

MO/Back Reflection Error (Transient or Persistent)

HIGH

HIGH

Reserved

HIGH

LOW

Status Monitors

 Transient MO error refers to temporary loss of MO power.
 Persistent MO error refers to a sustained loss of the MO power.
 For transient MO or back-reflection errors, the alarm pins will be asserted to indicate an error

condition for a minimum of 500 ms to allow time for the external control system to detect and
respond to the error. Note: The laser output will recover from transient MO and high back­reflection error conditions as soon as possible, often times within 250 µs of the error
occurring.

3.3 Laser Installation

3.3.1 Mounting the Laser

Mount the Diamond FLQ laser as desired using the 4 bolt holes to firmly attach the unit to a
surface. Do not block the airflow to the cooling fans on the rear panel. Coherent|Nufern
recommends a minimum clearance of 25mm (1.00”) at end of laser for the fans provide the
desired flow to cool the diodes and other components in the laser to ensure longevity of the
laser. Provide adequate room in front of the front panel to access the various connections. The
10-W, 20-W and the 30-W lasers can be mounted vertically or horizontally. The 50-W and 100­W laser can only be mounted horizontally (feet down), due to its mass. Contact
Coherent|Nufern if vertical mounting is required for your 50-W or 100-W laser application.

3.3.2 Mounting the Termination Housing

The termination housing has a built-in isolator and beam expander (not all models). The
housing should be mounted in a manner such that there is minimal stress on the fiber delivery
cable. The fiber delivery cable should be laid out to avoid excessive twisting and tight bend
radii (less than 30mm radius). The termination head should be mounted such that the laser
output is directed in a manner that ensures no danger to personnel or property in the vicinity of
the laser.

3.3.3 Electrical Connections

Refer to Section 3.2.1. Connect the power cable per the labels attached to the cable. Next
connect the 25-pin D-Sub. If using the RS-232 interface, also connect the 9-pin D-Sub. (Please
refer to Section 9.4.) If you will gate the FA via the Gate BNC, then connect this signal. If you
intend to use the PRR Out to synchronize other equipment or instruments, then connect to this
signal. Power supply requirements are given in Figure 8.

Page 18 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Parameter

Specification

Input Voltage

23-25 Volt DC

Noise and Ripple

1% Peak-to-Peak

Recommended Current Capacity

6 A for FLQ-1064-0010-YZ
8 A for FLQ-1064-0020-YZ
10 A for FLQ-1064-0030-YZ
15 A for FLQ-1064-0050-YZ
20 A for FLQ-1064-0100-YZ

Max. Off Voltage*

1.5 VDC

Power Supply Requirements

* Highest voltage allowable on the +24VDC input when the power supply is intended to be off.

3.4 Starting Up the Laser

3.4.1 Laser Start-Up Using DB25 Parallel Interface

Once the laser module and termination assembly are properly mounted and the correct electrical
connections are made, the laser is almost ready to run. In order to get the Diamond FLQ to
produce output, the following steps need to be completed.

1. Apply the appropriate voltages to the power cable, as described in Figure 8.

2. Apply a TTL low signal to all signal inputs, pin #s 1–8, 9, 18–19, 22.

3. Apply a TTL high to Pin 23.

4. Apply the Pulse Repetition Rate (PRR) Signal to Pin 20. This should be a TTL

signal with the duty cycle between 20% and 80%.
FLQ-1064-0010-YZ: the PRR has to be between 20 kHz and 100 kHz.
FLQ-1064-0020-YZ: the PRR has to be between 20 kHz and 100 kHz.
FLQ-1064-0030-YZ: the PRR has to be between 30 kHz and 100 kHz.
FLQ-1064-0050-YZ: the PRR has to be between 50 kHz and 200 kHz.
FLQ-1064-0100-YZ: the PRR has to be between 100kHz and 200 kHz.

5. Set the desired power of the laser using pins 1–8. The default is 0 W

(Only MO is on).

6. Latch the power setting by toggling pin #9.

7. Apply a TTL high to Pin 18 to enable the MO. Wait at least 200 µs before

setting Pin 19 high.

8. Apply a TTL high to Pin 19 to turn on the amplifier.

9. Turn the amplifier on or off by applying a TTL high or low to Pin 19.

Page 19 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Min (µs)

Max (µs)

T

CLOCK

10W: 10.0 µs
20W: 10.0 µs
30W: 10.0 µs
50W: 5.0 µs
100W: 5.0 µs

10W: 50.0 µs
20W: 50.0 µs
30W: 33.3 µs
50W: 20.0 µs
100W: 10 µs

TON

200

∞

Min/Max Timing Settings

Page 20 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

3.4.2 Turn on the Visible Pointer

1. Only valid for units equipped with the visible pointer option.

2. Apply 24V to the unit or apply the optional auxiliary 5 V to Pin 17.

3. Apply a TTL high or low to Pin 22 to turn on or off the visible pointer.

3.4.3 Laser Start-Up Using RS-232 Interface

Please refer to Section 9.

3.4.4 Laser Troubleshooting Using Digital Control Software

The Digital Control Software is an optional diagnostic tool for the Coherent|Nufern Diamond FLQ
Fiber Marking Laser products. The Digital Control Software provides an all-in-one interface to
operate the laser from a Windows PC. This tool can be used for any Diamond FLQ Fiber Amplifier
manufactured after August 1, 2012. The Digital Control Adapter, P/N E001IFC which can be
purchased from Coherent|Nufern, consists of an inline signal adapter to be plugged into both the
25 Pin Interface Connector and the RS-232 Connector located on the back panel of the Diamond
FLQ Fiber Marking Laser. This adapter is connected to a computer via a USB port. The Digital
Control Software commands the Diamond FLQ laser through the USB connection, providing the
user with real time laser controls and feedback from the laser’s health and status monitors.

For more information or to order the Diamond FLQ DC Adapter, please visit Coherent|Nufern’s
website. Also, you can request a copy of the Diamond FLQ DC Adapter Quick Start Guide,
G322DOC.

Digital Control Software Interface Connection

Page 21 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

4. MAINTENANCE

The Diamond FLQ fiber laser has no field serviceable parts. You may need to make sure the ventilation
ports do not become obstructed and limit air flow, but otherwise there is no required maintenance for this
unit. If you are having problems with the operation of your unit, please contact customer service to obtain
a Return Material Authorization (RMA) number before sending your unit back to the factory.

5. TROUBLESHOOTING / CUSTOMER SERVICE

This manual addresses the most common issues related to the setup, operation, and general safety
considerations for the Diamond FLQ laser. If you have questions that are not resolved by reading this
manual, or if your laser does not perform as specified, you may call the Diamond FLQ help line (8 AM to
5 PM EST) or email us at [e-mail] for assistance.

5.1 Diamond FLQ Help Line

Within U.S. Call Toll-free:
[phone]

From outside the U.S. Call:
1-860-408-5000

Coherent|Nufern customer service may, at their discretion, attempt to resolve your issue over the
phone, or may request that you return your laser for repair or replacement. Please note that all
product returns require a Returned Merchandise Authorization (RMA) number from
Coherent|Nufern. Customer Service will advise you of the precise procedure and packing
instructions for merchandise returns when needed.

6. NOTICES

Information contained in this manual is deemed to be reliable and accurate. No responsibility is assumed
for its use, nor for any infringement on the rights of others. Coherent|Nufern reserves the right to change
the design and specifications of the product described and the related information provided in this manual
at any time without notice.

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Optical Specifications

FLQ-1064-0010-YZ

FLQ-1064-0020-YZ

FLQ-1064-0030-YZ

FLQ-1064-0050-YZ

FLQ-1064-0100-YZ

Output Power

10.5 ±1.0W

20.5 ± 1.5 W

30.5 ± 2.0 W

51.0 ± 3.0 W

100.0 ± 5.0 W

Output Power Adjustment

10 – 100%

10 – 100%

10 – 100%

10 – 100%

10 – 100%

Leakage Power in Off State

< 8.0 mW

< 8.0 mW

< 8.0 mW

< 15 mW

< 60 mW

Power Stability1

-2.5% Min, +2.5% Max

-2.5% Min, +2.5% Max

-2.5% Min, +2.5% Max

-2.5% Min, +2.5% Max

-2.5% Min, +2.5% Max

Beam Quality (Nominal)

M2 < 1.5 (nominal)

M2 < 1.5 (nominal)

M2 < 1.5 (nominal)

M2 < 1.5 (nominal)

M2 < 1.5 (nominal)

Beam Divergence No Beam
Expender

< 4.0 mrad

< 4.0 mrad

< 4.0 mrad

< 5.5 mrad

< 5.5 mrad

Beam Divergence With
Beam Expender

< 0.5 mrad

< 0.5 mrad

< 0.5 mrad

< 0.5 mrad

< 0.5 mrad

Output Beam Diameter No
Beam Expender2

NA

NA

0.65 ± 0.1 nm

NA

NA

1.0 ± 0.1 nm

1.0 ± 0.1 nm

1.0 ± 0.1 nm

NA

NA

Output Beam Diameter With
Beam Expender

3.8 ± 0.8 mm

3.8 ± 0.8 mm

3.8 ± 0.8 mm

NA

NA
NA

NA

NA

5.0 ± 0.8 mm

NA

7.5 ± 1.0 mm

7.5 ± 1.0 mm

7.5 ± 1.0 mm

7.5 ± 1.0 mm

7.5 ± 1.0 mm

12.0 ± 1.5 mm

12.0 ± 1.5 mm

12.0 ± 1.5 mm

NA

NA

Visible Pointer

No Pointer

No Pointer

No Pointer

No Pointer

No Pointer

Red Pointer

Red Pointer

Red Pointer

Red Pointer

Red Pointer

Output Type

Fiber to free space isolator

Fiber to free space isolator

Fiber to free space isolator

Fiber to free space isolator

Fiber to free space isolator

Mode of Operation

Pulsed

Pulsed

Pulsed

Pulsed

Pulsed

Polarization

Random

Random

Random

Random

Random

Peak Power3

5.0 kW (nominal)

10.0 kW (nominal)

10.0 kW (nominal)

8.5 kW (nominal)

8.5 kW (nominal)

Pulse Energy3

0.5 mJ (nominal)

1.0 mJ (nominal)

1.0 mJ (nominal)

1.0 mJ (nominal)

1.0 mJ (nominal)

Pulse Width4

100 ± 20 ns

100 ± 20 ns

100 ± 20 ns

120 ± 20 ns

120 ± 20 ns

Pulse Repetition Rate (PRR)

20 – 100 kHz

20 – 100 kHz

30 – 100 kHz

50 – 200 kHz

100 – 200 kHz

Turn-on Time5

< 250 µs

< 250 µs

< 250 µs

< 250 µs

< 250 µs

Turn-off Time6

< 2 µs

< 2 µs

< 2 µs

< 2 µs

< 2 µs

Central Wavelength

1064.0 ± 2.0 nm

1064.0 ± 2.0 nm

1064.0 ± 2.0 nm

1064.0 ± 2.0 nm

1064.0 ± 2.0 nm

Emission Linewidth4

< 5.0 nm

< 5.0 nm

< 5.0 nm

< 5.0 nm

< 5.0 nm

Mechanical Specifications

Delivery Fiber Length

3.0 ± 0.2 m

3.0 ± 0.2 m

3.0 ± 0.2 m

3.0 ± 0.2 m

3.0 ± 0.2 m

Output Cable Minimum
Bend Radius

30 mm

30 mm

30 mm

30 mm

30 mm

Dimensions

215 x 95 x 284 mm

215 x 95 x 284 mm

215 x 95 x 284 mm

215 x 95 x 284 mm

215 x 136 x 284 mm

Weight

5.7 kg (nominal)

5.7 kg (nominal)

5.7 kg (nominal)

10.0 kg (nominal)

12.0 kg (nominal)

Electrical Specifications

DC Supply Voltage

23 – 25 VDC

23 – 25 VDC

23 – 25 VDC

23 – 25 VDC

23 – 25 VDC

Current Consumption at 24
VDC

≤ 6.0 A

≤ 8.0 A

≤ 10.0 A

≤ 15.0 A

≤ 20.0 A

Digital Interface7

RS-232 & DB25

RS-232 & DB25

RS-232 & DB25

RS-232 & DB25

RS-232 & DB25

Max Off Voltage8

1.5V DC

1.5V DC

1.5V DC

1.5V DC

1.5V DC

Environmental
Specifications

Operating Ambient
Temperature9

0 to 42 ⁰C

0 to 42 ⁰C

0 to 42 ⁰C

0 to 42 ⁰C

0 to 42 ⁰C

Storage Temperature

-10 to 60 ⁰C

-10 to 60 ⁰C

-10 to 60 ⁰C

-10 to 60 ⁰C

-10 to 60 ⁰C

Operating Humidity

0 to 85% RH non-condensing

0 to 85% RH non-condensing

0 to 85% RH non-condensing

0 to 85% RH non-condensing

0 to 85% RH non-condensing

Warm-up Time

60 sec

60 sec

60 sec

60 sec

60 sec

Cooling10

Air cooled

Air cooled

Air cooled

Air cooled

Air cooled

1

Power fluctuation at full rated power for 5 hrs.; ±(Max-Min)/(Max+Min).

2

Beam diameter (1/e2), for options with no beam expander, beam diameter is measured at distance of 20mm from output aperture.

3

At the lowest PRR and full rated power.

4

FWHM at the lowest PRR and full rated power.

5

Rise time from 0 to 90% of max power at 80 kHz.

6

Fall time from 100% to 10% of max power at 80 kHz.

7

DB25 connector uses industry standard pin assignments

8

Highest voltage allowable on the +24VDC input when the power supply is intended to be off.

9

36-42 °C with less than 50% duty cycle.

10

Ensure 100 cfm (0.047m3/s) of air flow provided for 10-W, 20W, 30-W & 50-W units. Ensure that 150 cfm (0.071 m3/s) of air flow is provided for 100-W units

7. SPECIFICATIONS (Typical, see Nufern.com for current data)

Page 22 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

8. MECHANICAL DRAWINGS

8.1 FLQ-1064-0010-YZ, FLQ-1064-0020-YZ and FLQ-1064-0030-YZ

Laser Housing of FLQ-1064-0010-YZ,

FLQ-1064-0020-YZ, and FLQ-1064- 0030-YZ

Dimensions in mm

Page 23 of 38

Page 24 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Output Device of FLQ-1064-0010-YZ, FLQ-1064-0020-YZ,

and FLQ-1064-0030-YZ (except –CZ models)

Dimensions in mm

8.2 FLQ-1064-0050-YZ

Laser Housing of FLQ-1064-0050-YZ

Dimensions in mm

Page 25 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Output Device of FLQ-1064-0050-YZ

Dimensions in mm

8.3 FLQ-1064-0100-YZ

Laser Housing of FLQ-1064-0100-YZ

Dimensions in mm

Page 26 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Output Device of FLQ-1064-0100-YZ

Dimensions in mm

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Parameter

Value

Baud Rate:

9600

Data Bits:

8

Stop Bits:

1

Parity:

None

Flow Control

None

9. OPERATING THE LASER WITH RS-232 INTERFACE

9.1 RS-232 Interface

The RS-232 interface will use the following set of parameters:

Parameters for-RS 232 Interface

Notes:

 All commands must be terminated with a carriage return (0x0D, 13) – line feed (0x0A, 10)

pair.

 All responses will be terminated with a CR/LF.
 The examples here show the commands in uppercase, but the commands are not case

sensitive.

 A space character (0x20, 32) must be placed between a command and the command’s

parameters.

 The laser will send no unsolicited responses, except for boot messages that may appear

within 5 seconds of power on.

 Laser defaults to DB25 mode. RS-232 mode can be selected by sending the “S_232”

command, described below.

Page 27 of 38

9.2 RS-232 Command List

The following RS-232 commands will be available to the customer. Additional commands exist in
the laser, but are not available to the customer.

Page 28 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Command

Brief Description

PRR

Sets or gets the pulse repetition rate.

NUQON

Turns the laser output on.

NUQOFF

Turns the laser output off.

POW

Gets or sets the output level of the laser.

GSTA

Gets the overall status of the laser as either a bit mapped integer or as a
verbose listing.

GERR

Gets the error flags for the laser as either a bit mapped integer or a more
verbose listing.

SRED

Sets the state of the red laser pointer.

RESERR

Resets error indicators in the laser.

RFS

Reads several status values at once.

S_232

Selects RS-232 mode. Note that DB25 mode is the default.

HELP

Returns a list of available commands.

Command:

PRR

Description:

Sets or gets the PRR frequency.

Parameters:

The parameter is optional. If no parameter is sent with the command the existing PRR
frequency will be reported. If a parameter is supplied with the command, it will set a
new PRR frequency in the laser.

Response:

Regardless of whether a parameter is supplied, the response will be “OK” followed
by the command echoed back as an identifier, and finally the PRR frequency that is
set.
If a parameter is sent with the command, the frequency reported will be the newly set
frequency. If a parameter sent with the command is outside the acceptable range, the
response will be “ERROR- Parameter out of range”.

Examples:
Sent:

“PRR”

Response:

“OK PRR 56 KHZ”

Effect:

This indicates that the PRR frequency is 56 kHz. The laser state is not
changed.

Customer Accessible RS-232 Command List

9.3 Detailed Command Description

Page 29 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Sent:

“PRR 73”

Response:

“OK PRR 73 KHZ”

Effect:

The PRR frequency is set to 73 kHz.

Sent:

“PRR 23000”

Response:

“ERROR – Parameter out of range”

Effect:

The PRR frequency is unchanged because the parameter was outside
the valid range.

Notes:

The command is not available in DB25 mode.

Command:

NUQON

Description:

Turns the laser output on.

Parameters:

None

Response:

If the laser is in a mode where its output can be turned on, the response will be “OK”

followed by the echoed back command as an identifier. If the laser cannot turn its

output on, the response will be “ERROR” with a message indicating why the laser

cannot turn on. The following error responses are possible:

“ERROR – ERRORS PRESENT”
“ERROR – RED LASER IS ON”
“ERROR – WRONG MODE”

Examples:

Sent:

“NUQON”

Response:

“OK NUQON”

Effect:

The laser’s output will turn on and go to the previously set level.

Sent:

“NUQON”

Response:

“ERROR – ERRORS PRESENT”

Effect:

The laser’s output is not turned on because there are errors present.

Notes:

The command is not available in DB25 mode. The main laser output cannot be turned
on when the red guide laser is on. A list of specific errors that may be present can be
read using the GERR command.

Command:

NUQOFF

Description:

Turns the laser output off.

Parameters:

None

Page 30 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Response:

The response will be “OK” followed by the command echoed back as an identifier.

Examples:

Sent:

“NUQOFF”

Response:

“OK NUQOFF”

Effect:

The laser output is turned off.

Notes:

The command is not available in DB25 mode.

Command:

POW

Description:

Sets or gets the output level setpoint of the laser.

Parameters:

The parameter is optional. If no parameter is sent with the command the existing
output power setpoint will be reported. If a parameter is supplied with the command,

it will set a new output power setpoint in the laser. The parameter will be the laser’s

output level as a percentage, from 0 to 100.

Response:

Regardless of whether a parameter is supplied, the response will be “OK” followed
by the command echoed back as an identifier, and finally the output power setpoint
that is set. If a parameter is sent with the command, the setpoint reported will be the
newly set one. If a parameter sent with the command is outside the acceptable range,
the response will be “ERROR- Parameter out of range”.

Examples:

Sent:

“POW”

Response:

“OK POW: 63.0”

Effect:

This indicates that the output power setpoint is 63%. The state of the
laser is not changed.

Sent:

“POW 86”

Response:

“OK POW: 86.0”

Effect:

The output power setpoint is changed to 86%.

Sent:

“POW 2350”

Response:

“ERROR – Parameter out of range”

Effect:

The output power setpoint is unchanged because the 2350 is outside
of the acceptable range of 0 to 100.

Notes:

The command is not available in DB25 mode.

Command:

GSTA

Description:

Reads the overall status of the laser.

Page 31 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Parameters:

The parameter is optional. If a parameter is added to the command, the response will
be a verbose description of the status. Otherwise the response will be a more compact
bit mapped 16 bit integer.

Response:

The response will depend on the parameter. If no parameter is passed, the response
will be “OK”, followed by the command echoed back as an identifier, and finally the
laser status as a bit encoded integer. The mapping of the bits is explained below.

If a parameter is sent with the command, the response will be “OK” followed by the

command echoed back as an identifier, which will be followed by a CR/LF
terminator. Following that will be a series of messages describing the status of the
laser. Each line of messages will be terminated with a CR/LF. Finally, a line with just
‘GSTA DONE” will indicate the end of the response.
Bit mappings:

Bit

Definition

Verbose Message

0

0 = Laser Output Off
1 = Laser Output On

“LASER OUTPUT ON”

1

0 = DB25 Mode Not Active
1 = DB25 Mode Active

“DB25 MODE”

2

0 = RS-232 Mode Not
Active
1 = RS-232 Mode Active

“RS-232 MODE”
3

Not Used/ Reserved

None

4

0 = Red Laser Off
1 = Red Laser On

“RED LASER ON”
5 - 15

Not Used / Reserved

None

Examples:

Sent:

“GSTA 1”

Response:

“OK GSTA”
“Output On”
“RS-S32 Mode”

“GSTA DONE”

Effect:

This indicates that the laser output is on, the control mode is RS-232,
and the PRR is from the internal source.

Sent:

“GSTA”

Response:

“OK GSTA 5”

Effect:

This indicates that bits 0 and 2 are set (5 = 20 + 22), so the laser output
is on, the control mode is set to RS-232, and the PRR is from the
internal source.

Page 32 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Notes:

None

Command:

GERR

Description:

Reads the error flags in the laser.

Parameters:

The parameter is optional. If a parameter is added to the command, the response will
be a verbose description of the status. Otherwise the response will be a more compact
bit mapped 6 bit integer.

Response:

The response will depend on the parameter. If no parameter is passed, the response
will be “OK”, followed by the command echoed back as an identifier, and finally the
error flags as a bit encoded integer. The mapping of the bits is explained below.

If a parameter is sent with the command, the response will be “OK” followed by the

command echoed back as an identifier, which will be followed by a CR/LF
terminator. Following that will be a series of messages describing any errors that have
been detected in the laser. Each line of messages will be terminated with a CR/LF.

Finally, a line with just ‘GERR DONE” will indicate the end of the response. If there

are no errors present, the message “No Errors” will be listed.
Bit mappings:

Bit

Definition

Verbose Message

0

0 = No MO Error
1 = Persistent MO Error
Detected

“MO Error”
1

Not Used/Reserved

None

2

0 = No overtemp error present
1 = Overtemp error present.

“OVERTEMP”

3

0 = 24V Supply On
1 = 24V Supply Off

“POWER SUPPLY OFF”

4

0 = Interlock Not Active (Pin
HIGH)
1 = Interlock Active (Pin LOW)

“EMO ACTIVE”
5

Not used/Reserved

None

6

0 = No power supply error
detected.
1 = Power supply error detected

“24V Error”
7 - 15

Not Used / Reserved

None

Examples:

Sent:

“GERR 1”

Response:

“OK GERR”
“OVERTEMP”
“GERR DONE”

Effect:

This indicates that an overtemperature condition has been detected.

Page 33 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Sent:

“GERR”

Response:

“OK GERR 4”

Effect:

This indicates that error bit 2 is set (4 = 22), which indicates an overtemp
condition.

Notes:

Any errors will turn off the laser output if it is on or prevent the output from being
turned on.

Command:

SRED

Description:

Turns the red laser on or off.

Parameters:

A parameter of 0 will turn the red laser off and a parameter of 1 will turn the red laser
on. All other values will generate an error message.

Response:

The response will be “OK” followed by the command echoed back as an identifier

and finally a “0” or “1” to indicate whether the red laser was turned on or off.
If the red laser was not able to be turned on because the main output was turned on, a
response of “ERROR – LASER OUTPUT IS ON” will be returned.

Examples:

Sent:

“SRED 1”

Response:

“OK SRED 1”

Effect:

The red guide laser is turned on.

Sent:

“SRED 1”

Response:

“ERROR – LASER OUTPUT IS ON”

Effect:

The red laser is not turned on because the main laser output is on.

Notes:

The red laser cannot be turned on when the main laser output has been turned on.
The state of the red laser can be determined with the “GSTA” command (bit 4).

Command:

RESERR

Description:

Resets any error flags that are active in the laser.

Parameters:

None

Response:

The response will be “OK” followed by the command echoed back.

Examples:
Sent:

“RESERR”

Response:

“OK RESERR”

Page 34 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Effect:

Any active alarm flags are reset as long as the source of the error is
no longer present.

Notes:

The error flags can be read using the GERR command.

Command:

RFS

Description:

Reads several status values from the laser at once.

Parameters:

None

Response:

The response will be “RFS:” followed by 7 status values, all separated by space

characters. The 7 values will be:

Item #

Value

1

Not used.

2

FA Temperature, in degrees C.

3

Not used.

4

Laser status flags, with the same format as for the GSTA
command.

5

Laser error flags, with the same format as for the GERR command.

6

The set PRR frequency, in kHz.

7

The power setpoint, in percent.

Examples:

Sent:

“RFS”

Response:

“RFS: 0 27 0 5 0 50 50”

Effect:

This indicates the following:
FA Temperature = 27 °C
Laser Status Flags = 5
Laser Error Flags = 0
Set PRR = 50 kHz
Set power level = 50 %

Notes:

See the description of the GSTA and GERR commands for the definitions of the
individual bits in the status and alarm flags.

Command:

S_232

Description:

Selects RS-232 mode as the active control mode

Parameters:

None.

Response:

Page 35 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

The response will be the command echoed back as a confirmation that the command
was received. The control mode cannot be changed if the laser output is on.

Examples:
Sent:

“S_232”

Response:

“S_232”

Effect:

The control Mode is set to RS-232 mode.

Notes:

None.

Command:

HELP

Description:

Provides information on RS-232 commands.

Parameters:

None.

Response:

The response will be a list of available commands.
Each line of the list of commands will be terminated with a CR/LF pair.

Examples:

Sent:

“HELP”

Response:

“PRR”
(Complete list of commands …)

“SRED”
“HELP DONE”

Effect:

The state of the laser will not be affected.

Notes:

None.

9.4 Examples

9.4.1 Example #1

Operate laser in RS-232 mode at 65 kHz and 75% power setting.

Electrical Connections:

 (Required) Apply 24V to the DC power input.
 (Required) Apply 5V to the Interlock pin on the DB25 (Pin 23).
 (Optional) Apply 5V to the auxiliary input pin on the DB25 (Pin 17).
 (Required) Connect the GATE signal. This connection can be made on the BNC (#3 on

the diagram below), or the connection can be made by bridging Pin 18 to Pin 19 and
connecting the GATE signal to both pins.

 (Required) Connect the laser’s RS-232 interface to a host computer or other controller

using a straight through DB9 cable.

Page 36 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

Front Panel Connections for Operating the Laser with RS232 Interface

Sequence:

 Turn on the 24V supply.
 Send the command “GSTA” until a response appears.
 Send the command “S_232” to select RS-232 mode.
 Send the command “PRR 65”. This will set the laser rep rate to 65 kHz.
 Send the command “POW 75”. This will set the output to 75% of the maximum.
 Send the command “NUQON”. This will enable the laser output. At this point, the laser

is enabled and only the gate signal is preventing the amplifier from firing.

 Bring the gate signal HIGH to fire the amplifier.
 After the laser operation is complete, bring the gate signal LOW to turn off the

amplifier.

 Send the command “NUQOFF” to disable the laser output.
 Operation complete.

9.4.2 Example # 2

Turn on the red guide laser to aim the laser output with only the auxiliary 5V input being
present.

Electrical Connections:

 (Required) Make a connection of 5V to the auxiliary input pin on the DB25 (Pin 17),

but leave the voltage off.

 (Required) Connect the laser’s RS-232 interface to a host computer or other controller

using a straight through DB9 cable.

Sequence:

 Turn on the voltage to the auxiliary 5V input.

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

 Send the command “GSTA” until a response appears.
 Send the command “S_232” to select RS-232 mode.
 Send the command “SRED 1”. This will turn on the red guide laser.
 Aim the laser output as needed.
 Send the command “SRED 0”. This will turn off the red guide laser.
 Operation complete.

9.4.3 Example # 3

Use the RS-232 interface to query the state of the 24V and interlock inputs.

Electrical Connections:

 (Required) Apply 5V to the auxiliary input pin on the DB25 (Pin 17).
 (Required) make the connection to the interlock pin on the DB25 (Pin 23). Leave the

signal LOW for now.

 (Required) Make the connection to the laser’s 24V DC input. Leave the power supply

off for now.

 (Required) Connect the laser’s RS-232 interface to a host computer or other controller

using a straight through DB9 cable.

Sequence:

 Apply power to the auxiliary 5V input.
 Send the command “GSTA” until a response appears.
 Send the command “S_232” to select RS-232 mode.
 Send the command “GERR” and check the response. The response should indicate that

the Interlock and 24V supplies are off (bits 3 and 4 of the response should be ones, for
example 24 = 23 + 24, indicating that bits 3 and 4 are set).

 Apply a HIGH voltage to the Interlock pin.
 Send the command “GERR” and check the response. Bit 4, which indicates the

Interlock status should be LOW, but bit 3, which indicates that the 24V supply is off,
should still be HIGH. For example, an expected value would be 8 (8 = 23, which
indicates that the 24V is off, but the Interlock pin is HIGH).

 Turn on the 24V supply.
 Send the command “GERR” and check the response. Bits 3 and 4 should both be LOW,

which indicates that the Interlock pin is HIGH and the 24V supply is on.

 Operation complete.

Page 37 of 38

Page 38 of 38

G026DOC Rev. U - November 2017

7 AIRPORT PARK ROAD • EAST GRANBY, CT 06026 • 860-408-5000 • www.nufern.com

10. WARRANTY

Nufern warrants the Diamond FLQ Fiber Laser to be free from defects in workmanship and materials,
hereinafter called “Nonconformity,” for a period of twenty-four (24) months from the date of shipment or
such other date set forth in the contract.
This warranty does not apply to systems which Nufern determines, upon inspection, have failed, become
defective or unworkable due to abuse, mishandling, misuse, alteration (unless approved in writing by
Nufern), negligence, improper installation, use which is not in accordance with the information and
precautions described in the Diamond FLQ Operator’s Manual, or other causes beyond Nufern’s control.

This warranty does not apply to (i) any products or components not manufactured by Nufern or (ii) any
aspect of the products based on buyer’s specification, unless Seller has reviewed and approved such
specification in writing.

EXCEPT FOR THE FOREGOING WARRANTY, NUFERN SPECIFICALLY DISCLAIMS AND
EXCLUDES ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING IMPLIED
WARRANTIES OF NONINFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.

Buyer shall notify Nufern of any Nonconformity during the warranty period, obtain a Return Material
Authorization (RMA) number for the nonconforming products, and return the nonconforming products,
freight prepaid, to Nufern’s designated facility along with a written statement describing the
Nonconformity. Nufern’s sole and exclusive obligation under this warranty is to use reasonable

commercial efforts, at Nufern’s option, to repair, replace or refund the purchase price for any products

which are returned to Nufern as set forth above and which are, after examination by Nufern, determined

in Nufern’s reasonable discretion to be nonconforming. Products which are repaired or replaced within

the warranty period are warranted only for the remaining unexpired portion of the original warranty
period applicable to the repaired or replaced products or components. However, the warranty period does
not include the time period between when Nufern receives the nonconforming products and when Nufern
returns the repaired or replacement products to Buyer. Buyer agrees that the foregoing provisions
constitute the sole and exclusive remedies available to Buyer for breach of warranty by Nufern with
respect to the products.

IN NO EVENT WILL NUFERN BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL OR
CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO, LOSS OF ANTICIPATED
PROFITS OR BENEFITS, EVEN IF NUFERN HAS BEEN INFORMED OF THE POSSIBILITY

THEREOF IN ADVANCE. IN NO CASE WILL NUFERN’S AGGREGATE LIABILITY TO BUYER

BE GREATER THAN THE PURCHASE PRICE PAID BY BUYER TO NUFERN FOR THE
PRODUCTS WHICH ARE THE SUBJECT OF BUYER’S CLAIM.

The products are not authorized by Nufern for Buyer’s use in any device or application where the failure,
malfunction or inaccuracy of the product carries a risk of death or serious bodily injury, such as, but not
limited to medical equipment, nuclear facilities, aircraft operations, air traffic control, life support or other
applications representing a similar degree of hazard. Any such use is prohibited without prior written
agreement of Nufern under terms intended to allocate the risks of selling the product for such uses. Buyer
will indemnify, defend and hold Nufern harmless from all claims, losses, damages and expenses,
including attorney’s fees arising from any prohibited use or application of the products.

None of the warranties or other obligations of Nufern made in this section shall apply where Nufern
provides a Diamond FLQ Fiber Laser for evaluation purposes and any terms of an evaluation agreement
executed by the evaluator shall prevail over any applicable and conflicting terms of this section.