Atec ML9001A User Manual

47

OPTICAL MEASURING INSTRUMENTS

GPIB

1

OPTICAL POWER METER

ML9001A

The ML9001A is a single-channel digital-display optical power meter.
It insures accuracy and linearity over a wide wavelength range and
greatly improves measurement reliability. It also has an improved ba­sic performance. For example, measurement can be made over the wide
level range from –100 to +20 dBm because internal reflection in the
power sensors has been suppressed. The ML9001A also has many
new functions which make it easier to use than other power meters.
It can be used for all optical power measurements such as optical
fiber loss measurement and optical device performance evaluation.

Features

• Enables high-accuracy measurement

The ML9001A accurately and automatically calibrates all the power
sensors within the specified wavelength range and ensures a ±5%
accuracy at –23 dBm. It also has a ±0.15 dB linearity (–23 dBm ref­erence value). The ML9001A extends the guaranteed accuracy range
of the measured values and enables high-accuracy measurement.

•One power sensor for repeater maintenance and long-distance

fiber loss measurement

The MA9612A Optical Power Sensor has ultra-high sensitivity. Its mea­surement level range is –100 to ±3 dBm in the 1.3 µm band and it
can sense either continuous light or modulated light. A single MA9612A
can measure the near-end and far-end outputs of a repeater as well
as measure long-distance fiber losses.

• Multi-Core fiber cable losses easily measured

For modulated light measurement, the ML9001A has 12 modulation
frequencies including 270 Hz. This meter can easily be used to
measure multi-core fiber cable losses by using it with the MG9002A
Stabilized Light Source (mounts up to 12 light source units).

• Interchangeable optical connectors

The optical connectors of all the power sensors accept adaptors. This
system allows the optical connectors to be interchanged so the ML9001A
can be quickly used with various optical connectors. Since the inter­nal coating of the optical power sensors suppresses reflected light,
measurement errors are reduced in beam measurement (with or without
an optical fiber).

• Reduced measurement time

The ML9001A has a much better response speed and stability than
conventional optical power meters. With GPIB, it can measure at 30
ms/point so the measurement time can be reduced to less than 50%
of conventional automatic measurement.

• High-performance optical loss test set

Stacking the ML9001A with the MG9001A Stabilized Light Source
quickly configures a high-performance optical loss test set. It pro­vides for selecting various light source units and enables the
ML9001A to measure all optical losses.

Specifications

• ML9001A Optical Power Meter

Indicator

Display 4 digit, W, W

(REL)

, dBm, dB

(REL)

selectable
Calibration coefficient Adjustable
Recorder output 1 V/full-scale, linear output
Range select Manual selection and automatic ranging
Measurement mode Continuous and modulated light*

1

Wavelength sensitivity correction Automatic correction in 1 nm steps
Data memory Max. 1000 data via GPIB
Dimensions and mass 213 (W) x 88 (H) x 250 (D) mm, ≤4 kg

OPTICAL MEASURING INSTRUMENTS

48

EMC

*

11

EMC

*

11

Model MA9411A/A1 MA9412A MA9413A MA9611A
Optical power

measurement
range

Measurement
accuracy

Resolution
Power
Operating temperature

Continuous light

–70 to +10 dBm

*

4

(0.1 nW to 10 mW)
–70 to +7 dBm

*

6

(0.1 nW to 5 mW)

±5%

*8 (0.5 to 0.95 µm)

±0.15 dB

*

10

(±0.45 dB for –70 to –60
dBm)

W, W

(REL)

display: 0.1 to 1%, dBm display: 0.01 dB, dB

(REL)

display: 0.001 dB

100/115/120/200/220 Vac

+10
–15

%, 240 Vac

+4
–15

%, 50/60/400 Hz, ≤40 VA
0° to 50°C
EN55011: 1991, Group 1, Class A

EN50082-1: 1992

±0.15 dB

*

10

(±0.45 dB for –90 to –80
dBm)

±0.15 dB

*

10

(±0.45 dB for –80 to –70
dBm)

±0.15 dB

*

10

(±0.45 dB for –70 to –60
dBm)

–90 to 0 dBm

*

4

(1 pW to 1 mW)
–90 to –3 dBm

*

6

(1 pW to 0.5 mW)

–80 to +10 dBm

*

4

(10 pW to 10 mW)
–90 to +7 dBm

*

6

(1 pW to 5 mW)

±4.5%

*

8

(0.85 µm)

±5%(0.5 to 0.95 µm)

–70 to +3 dBm

*

5

(0.1 nW to 2 mW)
–80 to 0 dBm

*

7

(10 pW to 1 mW)

±5%

*

9

(1.0 to 1.6 µm)

Modulated light
Absolute accuracy

(–23 dBm)
Linearity continuous

light: 23°C, –23
dBm as reference

Model MA9411A/A1

0.38 to 1.15 µm
Si photodiode

Direct to photodiode

40 (W) x 32 (H) x 62/73 (D)
mm

,

≤400 g

61 (W) x 42 (H) x 110 (D)
mm, ≤800 g

42 (W) x 47 (H) x 160 (D)
mm, ≤700 g

40 (W) x 32 (H) x 65 (D)
mm, ≤400 g

9.5 mm – 5 mm –
Connector

*

2

Direct to photodiode Connector

*

2

0.45 to 1.05 µm

Cooled-Si photodiode

0.75 to 1.7 µm

InGaAs photodiode

MA9412A MA9413A MA9611A
Wavelength range
Element
Active area diameter
Input type

Dimensions and mass

Sensor

Overall

Model MA9612A

0.75 to 1.7 µm 0.75 to 1.8 µm

InGaAs photodiode Ge photodiode

Connector

*

2

61 (W) x 42 (H) x 110 (D)
mm, ≤800 g

40 (W) x 32 (H) x 62/73 (D)
mm, ≤400 g

42 (W) x 47 (H) x 110 (D)
mm, ≤500 g

47 (W) x 61 (H) x 128 (D)
mm, ≤800 g

– 5 mm

Direct to photodiode Connector

*

3

Cooled-Ge photodiode

MA9711A/A1 MA9712A MA9714B
Wavelength range
Element
Active area diameter
Input type

Dimensions and mass

Model MA9612A MA9711A/A1 MA9712A MA9714B
Optical power

measurement
range

Measurement
accuracy

Resolution
Power
Operating temperature

Continuous light

–100 to +3 dBm

*

5

(0.1 pW to 2 mW)
–90 to 0 dBm

*

7

(1 pW to 1 mW)

±5%*

9

(1.0 to 1.6 µm) ±5%

*

9

(0.95 to 1.5 µm)

±0.15 dB

*

10

(±0.45 dB for –90 to –80
dBm)

W, W

(REL)

display: 0.1 to 1%, dBm display: 0.01 dB, dB

(REL)

display: 0.001 dB

100/115/120/200/220 Vac

+10
–15

%, 240 Vac

+4
–15

%, 50/60/400 Hz, ≤40 VA
0° to 50°C
EN55011: 1991, Group 1, Class A

EN50082-1: 1992

±0.15 dB

*

10

(±0.45 dB for –40 to –30
dBm)

±0.15 dB

*

10

(±0.45 dB for –60 to –50
dBm)

±0.15 dB

*

16

(–37 to +20
dBm, ±0.45 dBm for –47 to
–37 dBm)

–40 to +10 dBm

*

5

(0.1 µW to 10 mW)
–60 to +7 dBm

*

7

(1 nW to 5 mW)

–60 to +10 dBm

*

5

(1 nW to 10 mW)
–70 to +7 dBm

*

7

(0.1 nW to 5 mW)

±4.5% (1.3 µm)
±5%(0.95 to 1.6 µm)

–47 to +23 dBm

*

12

(20 nW to 200 mW)
–57 to +20 dBm

*

13

(2 nW to 100 mW)

±4.5% (1.55 µm)

*

14

±5%(0.95 to 1.6 µm)

*

15

Modulated light
Absolute accuracy

(–23 dBm)
Linearity continuous

light: 23°C, –23
dBm as reference

*

1: Twelve modulation frequencies including 270 Hz and 1 kHz

*

2: FC-type connector standard

*

3: Only for PC type SM fiber (10/125 µm, NA 0.1)

*

4: At 0.85 µm

*

5: At 1.3 µm

*

6: At 0.85 µm, 270 Hz

*

7: At 1.3 µm, 270 Hz

*

8: For wavelengths other than 0.85 µm, specified at 23° ±5°C

*

9: For wavelengths other than 1.3 µm, specified at 23° ±5°C

*

10: At 23° ±5°C

*

11: Electromagnetic compatibility

*

12: At 1.55 µm

*

13: At 1.55 µm, 270 Hz

*

14: At 1.55 µm, 0 dBm

*

15: At 0 dBm

*

16: Reference = 0 dBm

Note: When an optical fiber is used, performance is guaranteed for a fiber core diameter of up to 62.5 m and an NA of up to 0.29.

When any other fiber is used, a measurement error may occur.

Safety

EN61010-1: 1993 (Installation Category ΙΙ, Pollution Degree ΙΙ)

Safety

EN61010-1: 1993 (Installation Category ΙΙ, Pollution Degree ΙΙ)