Spectra-Physics Quanta-Ray GCR-16, Quanta-Ray GCR-14, Quanta-Ray GCR-12, Quanta-Ray GCR-18 Instruction Manual

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Instruction

Lasers

Manual

GCR-12 GCR-L4

GCR-18

Spectra-Physics

SpectraPhysics

Lasers

—©

Quanta-Ray

Pulsed

Nd:YAG

Instruction

Lasers

Manual

GCR-12 GCR-14 GCR-16 GCR-18

Spectra-Physics

Bella

Terra

1330

Post

Office

Mountain

Part

View,CA94039-7013

International

Siemensstrasse

D-61

Number

0000-225A,

Headquarters

00

Lasers

Avenue

7013

Box

Darmstadt

Germany

Rev.

1992

April

20

A

This

manual operation Nd:YAG operation,

contains

and

maintenance

Laser

System. You

preventive andatroubleshooting elements—the tion

to instructions

installation

laser

and

operation

information

you

of your

will

find

maintenance,abrief

and

repair

head

power

for these

of

guide.

supply, components, the

HG-2

will

need

QuantaRay®

instructions

descriptionofits

The

system

and

remote

the

manual

harmonic

Preface

for

day-to-day

OCR

for installation,

generator.

Series

circuitiy,

comprises

control. In

describes

three

addi

the

While

this intended Please

wait assigned those up

The you as to failures

The damage over, put Laser

qualified

your

laser

Service

guide your

guidetorepairs

a repair

to

OCR

eyes

focused

energy

Safety hazards. carefully

If

you

encounter please let problems Physics

instruments.

manual

as

a

for

this

containsabrief

guide

to

the

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taskaspartofyour

and

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system.

and

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contains

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instructions.

difficulty

The

installation

the

initial

installation and

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purchase agreement.

Spectra-Physicstoinstall

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substances.

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components.

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repairs,

manual,

Spectra

laser.

only

set

and

system

out

The

these

such

III

Table

of

Contents

Chapter

Emission Population Nd:YAG Q-switching Resonant Longitudinal Producing Resonator Pulse Specifications

Chapter

Precautions Focused Maintenance

in

Compliance

Radiological

Sources

Introduction

1

Absorption

and

Inversion

an

as

Optical

Modes

Other

Structural

Triggering

Laser

2

for

Back

Required

Health

of

Excitation

Cavity

and

Wavelengths

Considerations

Sequence

Safety

Safe

the

Reflection

to

with

Center

(CDRH)

Laser

Safety

Light

of

Medium

Linewidth

and

Timing

Operation

Safety

this

keep

Devices

for

Regulations

Standards

of

Class

Laser

Product...

and

IV-High

Power

Lasers

1—1

1—1 1-3 1-4 1-6 1-7 1-8 1-10 1—11 1-12 1-14

2-1

2-1 2-3 2-3

2-4

Chapter

Unpacking

Installing

Connecting Filling

Controls

OUTPUT

lNPUTConnectors REMOTE COMPUTER POWER PURGE Power

Installation

3

your

Laser

the

Cooling

the

Connections—Remote

and and

Connections—Power

Connectors

Connector

Controls

Supply

Laser

the

Electrical

Connector

Rear

and

System

Panel

Operation

Service

Supply

Control

Module

3—1

3-1 3-1

3-1 3-2

3-3 3-5 3-5

3-5 3-6 3-6 3-6 3-7 3-7

V

Table

Contents

of

(cont.)

Chapter

Controls

Q-switch Emission Convenience

Starting

Chapter

Functional Computer

IEEE

RS-232-C

Message

CIM-1

Examples

Example

Installation

3

Connections—Laser

and

Driver

Indicator

Laser

the

Computer

4

Overview Control

Power-On Computer

488 Operation Remote Serial SW2

Operation Data SW1

SW3

Command Response

Commands

CONFIGURE SAMPLE SELECTc WRITEp,n SELECT SELECT SELECT

SELECT SETd,n

External Variable Q-switch Sample

Default Safety

Interface

Reset

Status

Poll

Switch

DIP

Serial

Transfer

DIP

Switch

DIP

Switch

Formats

Format

a

1, 1,

lamp rep

Advance

Analog-to-Digital

Commands

(Marx

Receptacle

and

State

(Watchdog)

Byte

Setting

Interface

and

Setting Setting

Format

OUTPUT,

p,

WRITE WRITE WRITE WRITE

fire

rate

Operation

and

Bank)

Box

Interface

Diagnostic

System

and

Handshaking

NONCLOCKED

4,

n n

5,

n

6, 7,

n

Sync

Conversion

Using

GW

Head

Module

Functions

Interlock

BASIC

(cont..)

Initialization

a

Personal

on

Computer

3-1

3-8 3-8

3-9

4-1

4-1 4-3

4-3 4-4

4-4 4-4 4-4 4-5 4-6 4-6

4-6 4-7 4-8 4-8

4-8 4-8 4-9

4-10 4-10

4-11 4-11 4-13

4-13 4-13 4-13 4-15

4-15 4-15 4-15 4-16 4-17 4-18

VI

Chapter

Installing

5

HG-2

and

Harmonic

Operating

Generator

the

TableofContents

(cont.)

5-1

HG-2

Installing Operation TypeIandIICrystals

HG-2

Controls

Operating Second

Third

Chapter6

Maintaining Maintaining Maintaining Replacing

Procedure

Replacing

Procedure

Replacing

Procedure

Controls

the

Temperature

Voltage

Harmonic

and

Fourth

Maintenance

the

Cooling

Air

the the

HG-2

the

Deionizing

the

Air

Flash

the

HG-2

Controller

Harmonic

Purge

Filters

Lamps

(TypesIand

Generation

System

Water

Filter

II)

5-3 5-3 5-4

5-5 5-6 5-6 5-6 5-7

6—1

6-1 6-i 6-i 6-2 6-2 6-3 6-3 6-4 6-4

Chapter7ServiceandRepair

System

Description Computer/Internal Enabling Analog Q-switch Q-switch Mode Q-switch Single-Shot Inhibit OFF Interlock Pulse Flash

Signals

Delay

Advanced

Switch

[STOP]/ON

Forming Lamp

Start-up

(Ui

Drivers

Operation

Logic

Simmer

Tests

Network

Switch

Sync

1)

[ENABLE]

Supply

Generator

buttons

7-1

7-i 7-1 7-i 7-1 7-2

7-2 7-2 7-3

7-3 7-3 7-3

7-4 7-4 7-5 7-5

VII

Table

Contents

of

(cont.)

ChapterlOCustomerService

Warranty

Instrument

the

Centers

Electrons probability

the

radial A

Compared Energy

The

polarization Stable

Frequency Etaton Simplified

Radiation

Warning

Main Cooling Remote Power Q-switch

Head Location Diagram Standard

Command

4-4:

CIM-1

4-5:

HG-2

5-1:

Temperature

5-2:

Short

6-1:

when

occupy

of

shape

Typical

of

and

Four-level

angular

Level

Q-switch

and

Loss

Block

Control

Labels

autotransformer

System

Control

Supply

Driver

Emission

of

RS-232-C

Proprietary

Component

together

servicing

to

rotator,

Unstable

Distribution

CIM-1

the

Word

List

Return Service

Figures

of

Figure

Figure Figure

Figure Figure Figure Figure

Figure Figure Figure Figure Figure

Figure Figure Figure Figure

Figure Figure Figure Figure Figure

of

1-1:

1-2:

1-3:

1-4:

1-5: 1-6:

1-7:

1-8: 2-1: 2-2: 3-1:

3-2:

3-3:

3-4:

3-5:

3-6:

4-1:

4-2:

4-3:

Repair

for

distinct

finding

the

orbital

dependence

Transition

of

that

Scheme

comprises

and

Minimum

Diagram

Drawing

Component Panel

Control

(Marx

Indicator

PC

serial

Abbreviations

PC

Identification

Control

posts

flash

the

defined

at

determined

the

of

an

orbitats

electron

being

Scheme

Nd:YAG

for

Resonator

of

Tuned

is

(b) Nd:YAG

the

polarizer,

a

Pockets

a

Configurations

Longitudinal

Laser

to

GCR

of

tapped

for

Series

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Panel

Bank)

Box

Boards

poll

status

byte

Interconnections

Board

Panel

prevent

to

B

and

A

lamps.

given

a

probability.

(a)

Laser quarter-wave

a

cell.

Modes

Gain

Electronics

several

shock

the

by

position,

the

by

Source

for

Maximum

operating

Single

a

Line

voltages

8-1

8-2 8-2

1-2

1-4

1-5 1-6

1-7 1-9 1-9 1-12 2-5 2-6 3-2 3-3 3-4

3-6 3-8 3-9 4-2

4-5 4-7 4-10 4-14

5-1 5-6 6-5

VIII

List

of

Tables

Table

of

Contents

(cont.)

Table

Table Table Table Table Table Table Table Table Table

4—1:

SW2

DIP

4-2:

SW1

Baud

4—3:

SW1

Mode

4—4:

Sample

4—5:

SELECT

4-6:

SELECT2,WRITE

5—1:

Summary Summary

5—2:

System

7—1: 7—2:

Replacement

Switch

Rate

Select

Command

a

1,

WRITE

of

Translation

of

HG-2

Start-up

Parts

Settings

Functions Command Command

Positions

for

Arm

Selecting

Functions Functions

Positions

Device

Address

4-6 4-8 4-8 4-11 4-12 4-13 5-2

5-2

Tests 7-7

7-13

The

following

prefixes

are

System

used

International

in

Spectra-Physics

units,

(SI) Lasers

abbreviations,

manuals:

SI

Units

and

Quantity mass length time

frequency

force energy

power electric electric electric

current charge

potential

resistance inductance magnetic magnetic

luminous temperature

pressure

capacitance angle

flux

density

intensity

Unit

gram

meter

second

hertz newton joule watt ampere coulomb volt ohm henry

weber tesla candela

kelvin

pascal

farad radian

Abbreviation

g m

s Hz N J W A C

V

W H Wb T cd K

Pa

F rad

tera

giga

mega kilo

(1012)

(1O)

(106) (10)

T

G

M k

Prefixes

deci

centi

milli

micro

(10-1)

(102)

(10) (10-6)

d c m

nano pico femto atto

(10)

(1012)

(10-15)

(10-18)

n

p

f a

xi

NOTE

CAUTION

WARNING

DANGER

Warning

Statement reference.

Statement

perfomance

Statement equipment.

Statement

injury.

safety

or

Conventions

cover

to

warn

to

error.

or

warn

to

cover

to

exceptional

against

of

or

possible

situation

circumstances

prevent

to

damage

involving

or

poor

to

personal

XII

Chapter

1

Introduction

Emission

and

Absorption

Laser lated emit relationship amplifier identical sources. matic,

Radiant molecular structure nucleus a

distinct

at

a teristic that

all

“p” lobed mined atom—its energy throughout

levels: state, in

its

forces.

Light*

of

is

an

acronym

Emission

light

in

all

with

of

light,

in

phase,

Its

output

and coherent.

emission

structure

describes

with

oneormore

orbital

given

position

shape

thatisdefined

probability,

orbitals

configuration

by

the

orbital

the

level

and

higher

ground

state,itwill

derived

of

Radiation.”

directions,

one

another.

and

because

direction,

beam

and

that

is

absorption

of

materials.

an

electrically

represents

relative

all

e.g.,

surround

“s”

the

(Figure

thatitoccupies,

level—depends

available

with

energy

the

orbitals. lowest levels

from

Thermal

the

individual

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and

singularly

electrons

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to

the

by

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x,

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1—1).

possible

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“Light

Amplification

radiators,

photons

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output

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contemporary

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probability

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Quanta-Ray

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Introduction

Population

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laser

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number

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the population

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its

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the

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.4

1—12

Introduction

signal

This

the

fires and

the

forming

pulse

rent ingofthe Nd:YAG the

0

Pockels

mode

The Pockels triggering long

pulse

system

In

the normal

(A)

SCR

0-switch

network,

(C)

Q-switch

rod.

of

the

cell.

switch

cell

pulseatthe

mode

alignment.

Subsequently,

nal

voltage dation total

The delay

triggering

and

output

characteristic

delayofD

Q-switch

Signal

(D).

andavariable

The

variable

after

the

or

follows

end

the

advanced

the

post-trigger

the trigger

is

gate

delay.

whose

through

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cavity

selects

be fired

can

that

mode, the

the

of

+0.

advanced

D

delay

of

the

sync

opening

pulse

current

generator

The

discharge

lamp.

the

until

the

approximately

to

maximum

the

internally

0-switch

provides

the

0-switch

pulse

generator

electro-optic

the

Marx

the

of

bank

Pockels

sync

triggers

(E),

pulse

fixed

pulse

with

both

setting

adjustable,

is delay pulse.

generator

of

the

range

a

for

source

all

for

current

gate

SCR

produces

Q-switch

The

population

225

jisec,

applying

by

configuration

(normal

trigger

pulseoflow

a

input (external

delay

fired

is

driver

(I)

changes

cell,

is

up

the

also

fixed

race

a

signal

soitcan

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(F),

whose

0-switch

of

(I).

±500

subsequent

the

pulse

(B)

a

critically

delay

inversion

its

high

of

the

mode),

peak

firesafixed

(D)

providing

(H), (Marx

the

opening

derived

delay

between

variable

output

This

nsec.

functions.

forming network

the

fires

pulse

damped

prevents

built

has

output

voltage

0-switch.

up

(D)

increases

(I)tothe

The

externally

mode),

power

useful

delay

sync

a

bank).

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polarization

the

0-switch

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from

(G)

these

end

either

delay

creates

described

either

two

before

pulse

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a

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precedes

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cur

open

the

in

a

by

orina

for

(0).

sig

high

retar

after

above

pulses.

triggers

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or

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the

firing.

lamp pulse

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inhibited

long

pulse

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yields

this

in

mode

is

internally

long

a

mode.

the

Pockels

charged

optical

cell

to

pulse.

triggered

is

provide

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0-switch

a

4

long,

at

sync

the

high

moment

voltage

output

of

is

1-13

Quanta—Ray

Specifications

1’2

GCR

Series

Spatial

Near

Field

Far Maximum

Output

1064nm 532nm 355nm 266nm

Repetition

Optimum Range

Diameter

Rod

All

specflcations

1. operation

Near

2.

90%

profiles Refers

3.

points.

Harmonic

4. II

second

energies Actual

5.

Profile

2

Field

Energy

as

field refer

are

the

to

hannonic

can

beam

Model

1

(1

m)

(cc)

Deviation

3

(mJ)

4

Frequency

(mm)’

subject

1(364

nm

profiles

spatial to

the

correlation

measured

maximwn

energies

are

generation

specfled

be diameter

(Hz)

change

to

a

standard

with

measured1mfrom

between

focal

vary

plane

from

after

(SHG).

Type

from

at

the

deviation

spec(fIed

when

will

GCR-12

s{N

70% 95%

40%

350

155

70 40

10

2—14

8.5

without

notice.

(nominal8ns)

actual

the

of

a1mfocal

best-fit

the

separation

nm

355

is

I

SHG

diameter

rod

90%

95%

15%

275

115

40

30

10

2—14

8.5

Unless

using

laser

beam

Gaussian

using

energies

used.

depending

pulse

profile

length

dichroic

are

70% 95%

otherwise

width.

a

GCR-14

S

40%

425

180

85

50

10

2—14

8.5

commercially

and

lens.

profile

spec

on

9O% 95%

15%

300

125

45 35

2—14

8.5

specified,

the

best

measured

mirror

jfied

using

configuration.

laser

N

10

70% 95%

40%

675 330

170

2—14

specifications

available least-squares

in

the

532

pairs.

Type

II

GCR-16

S(N

90% 95%

15%

80

10

2—14

8.5

diagnostic

beam

fit

Gaussian

field

near

energies

nm

A

SHG.

500 215

100

55

10

8.5

are

10%

given

(1

m)

are

increase

GCR-18

SjN

70% 95%

40%

850 425

185

90

10

2—14

8.5

for

Q-switched

system.

profile.

between

specified

in

90%

95%

70%

Far

the

using

355

15%

600 260

120

65

10

2—14

8.5

and

field

FWHM

Type

nm

given

Note:

term

performance

all

appropriate installation demonstrated dependingonthe complexity

Losers

1-14

specifications

These

operation.

representative

Due

energy

each

of

either

parametersatthe

are

to

complexity

the

measurements

width

Pulse

laser.

at

customer

the

of her

for

fun

good

in

involved customer and

that

single

and

oratthe

site

measurement

details.

faith

in

site.

copies

are

and measuring

We mode

Quanta-Ray

will

of

will

our

be

set

ensure

final

operation

added

levels

that

beam

can

the

to

of

that

the

all

also

sales

energy

profiles

at

many

test

manufacturing

manufacturability

ensure

individual

specifications

and

demonstrated.

be

facility.

price.

Please

and

allow

specflcations,wecannot

burn

A

are

patterns

All

varying

contact

other

range

your

maldng

met

by

included

are

specflcations

additional

of

local

reliable

demonstrate

Spectra-Physics

the

with

long

the

can

be

charges

X

1064nm

Pulse

Width

1

8-9

Energy

Stability

2

2%

{

Power

<3%

Introduction

Drift

3

Beam Pointing Timing Linewidth

6

Standard w/ICE w/Model

1.

Nominalfull 1064 available

Pulse

2. Over

3.

4.

Full nnsfltterfrom

5. Insertion

6. 10%

Divergence

4

Stability

3

Jitter

5

6300

width

urn

pulse

width

on

seeded

pulse

eight

(8)

measured

losses

nm.

stabilizyfor

Q-,switch

to

an

angle

at1064

532nm 355nm 266nm

Injection

half

to

versions

hour

at

for

systems

Seeder

on

>99%

at

pulse.

using

(FWHM)

special

of

1064

points.

either

maximum

approximately

period

FWHM

rync

(SLM)

2Susand

request

pulses,

nrn,

Jitter

an

pulse

only).

measured

with

temperature

is

1

ns

ICE-i

6—7 5—6

4-5

width.

The

reduces

over

when

rms

intracavity

short

the

pulse

1

hour

a

variations

using

the

etalonorthe

pulse

energy

period.

Model

mode,

less

of

<250

<0.003

by

6300

Model

3% 4%

8%

mrad

<0.5

I.Lrad

ns

<0.5

<1.Ocnr’

cm-

1

<0.2

cm’

standard

approximately

than

on

±3°C.

injection

6300 injection

GCR

all

10%.

seeder.

lasers,

(Short

seeder

<5% <6%

<10%

reduces

pulse

are

less

the

mode

than

1-15

Quanta-Ray

GCR

Series

GCR-12,_-14,

-16,

and

-18

Flash Water Electrical Voltage Umbilical

Size

3

Laser

Power

Weight

Laser Power

All

specflcations

1.

2.

Input

more

Dimensions

3.

Lamp

Life

Service

(nominal)

2

Length

Head

Supply

Head

Supply

transformer

than

65%

are

subject

has

from

listed

to

change

taps

at

nominal

order,

in

may

notice.

t’4ject

width

x

without

180,200,220,240,

voltage

length

as:

1022.0 x

590.0

260

and

operation

x

height.

no external

x

343.0

495.0

Once

V.

the

of

million

30

190—250

305

x

230.0

x

548.0mm

26

70

tap

is

a

laser.

chosen,

service

10

single

V,

cm

mm

(23.25

kg

(57

(154

kg

pulses

necessary

A

(10

ft)

(40.25

ib)

actual

phase

x

13.48

19.50

x

input

x

21.56

x

voltage

9.06

differing

in.)

by

1-16

Chapter

2

Laser

Safety

Precautions

of

Class

for

IV-High

the

Power

•

The High fire to

both

beam Because

especially the instantaneous

Safe

Operation

Lasers

Keep Avoid

hazardous. Avoid Use

wavelength and

both

guides. the

end

Operate the

requirements

Operate

during Expand Avoid

the

body.

Use beam

Establish to

those

DAJ’JGER.

Spectra-Physics

Power

hazards.

reflections

cornea,

the

looking

wearing

protective

the

blocking

an

is

Lasers

Take

direct

visual

and

the

1064

dangerous.

which

permanent

protective

and

function

Laser

Consult

of

this

the

laser

in

the

alignment

the

beam

IR

detector

off

before

a

controlled

trained

at

reflective

eyewear

intensity

Focus

the

section

“long

the

in

INVISIBLE

Quanta-Ray

whose precautionstoprevent reflected

cause

can

nm

output

Infrared

focuses

cover

the

output

jewelry

at

of

required.

World

ANSI,

for

the

at

of

wherever

working

the

pulse”

the

output

or

energy

access

the

principles

lowest

application.

experiment.

LASER

beam

it

damage.

on

all

ACGIII,

guidance.

beam

are,

beams.

severe

of

an Nd:YAG

radiation

on

the

laser

beam;

while

times.

the

radiation,

Worldwide

and

Lasers

beam

mode

possible

or

detector

in

front

area

for

of

GCR

Diffuse

eye

retina,

even

whenever

its

of

laser

RADIATION

series

by

definition,

accidental

as

or

skin

laser

passes

where

head

diffuse

using

Selection

the

and

Optronics

or OSHA

intensity

reduce

to

reflection

verify

to

the

laser.

laser

operation.

safety.

are

Class

safety

well

as

damage. is

invisible,

easily

it

can

at

all

times.

reflections

the

laser.

depends

conditions

vendors

standards

possible,

beam

with

that

IV-

and

exposure

specular

it

through

cause

on

the of listed

are

buyers’

listed

given

especially

intensity.

any

part

the

laser

Limit

access

is

are

use,

in

at

of

2—1

Spectra-Physics Quanta-Ray GCR-16, Quanta-Ray GCR-14, Quanta-Ray GCR-12, Quanta-Ray GCR-18 Instruction Manual

Specifications and Main Features

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