Continuum Precision II Series User manual

i
Operation and Maintenance Manual
C
996-0255 rev. b
Operation and Maintenance Manual
for the
Precision II Series Lasers
996-0255
rev. b

Precision II Operation and Maintenance Manual C
ii 996-0255 rev. b
Copyright 1993, 1997, 2000 & 2001 by Continuum. All right reserved. Printed in the U.S.A.
Except as permitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or
distributed in any form or by any means, or stored in a data base or retrieval system without the prior written
permission of Continuum.

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Operation and Maintenance Manual
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996-0255 rev. b
WARNING
Oscillator Burns Amplifier Burns
The voltage setting on the PU600C series power units at the time of installation, may NOT be exceeded
without consulting the Continuum Service office first. Exceeding the designated voltage can result in
free-running (see Section II), thermal focusing and optical damage. Failure to follow these precautions
will result in voiding the warranty (see Section VII).
Energy Spec.
Measured Energy Wavelength Voltage CB delays
Harmonic Burns Harmonic Burns
System Operation Data Sheet
Project #:
Date:
User:

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Table of Contents
Chapter I Laser Safety Precautions, rev. b
Government and industry regulations ...................................................................... 1-1
Laser safety precautions .............................................................................................. 1-1
Optical safety ................................................................................................................ 1-2
Electrical safety ............................................................................................................. 1-2
Laser emission classification ....................................................................................... 1-3
Protection while working with lasers ........................................................................ 1-3
Additional safety regulation references .................................................................... 1-3
Warnings and labels ......................................................................................... 1-4 thru 8
CE Declaration of conformity ..................................................................................... 1-9
Chapter II System Operation, rev. b
A. Startup procedure ................................................................................................... 2-1
B. Shutdown procedure ............................................................................................... 2-2
C. Programming the RB601 remote box .................................................................... 2-3
D. Options ...................................................................................................................... 2-4
Second Harmonic Generation ............................................................................. 2-4
Third Harmonic Generation ................................................................................ 2-6
Fourth Harmonic Generation .............................................................................. 2-8
LNE alignment ....................................................................................................... 2-9
E. External triggering of Precision series ................................................................ 2-11
1) Direct Access Triggering (DAT) ................................................................... 2-11
2) Stanford Research Pulse Generator setup ................................................... 2-13
3) Remote RS232 operation ................................................................................ 2-15
a) Command protocol.................................................................................. 2-15
b) RS232 specification/baud rate ............................................................... 2-17
c) RS232 signals ............................................................................................ 2-17
d) Host computer demo program.............................................................. 2-18
F. Installation ............................................................................................................... 2-22
Chapter III Subassemblies & Module Descriptions, rev. b
A. Laser bench optics ................................................................................................... 3-1
B. Laser bench electronics............................................................................................ 3-6
1) External controls ............................................................................................... 3-6
2) Top & bottom view of Precision II 8030 & 9050 laser benches ............ 3-7 & 8
3) Wiring diagrams ................................................................................... 3-15 to 21
C. Laser bench mechanics ......................................................................................... 3-22
D. Built-in rack electronics cabinet........................................................................... 3-23
E. Control Unit, CU601C ........................................................................................... 3-25
F. Power units, PU600C series .................................................................................. 2-45
G. CB600C series simmer capacitor banks .............................................................. 3-65
H. Cooling Group, CG604C ...................................................................................... 3-83
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Precision II Operation and Maintenance Manual C
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Chapter IV Maintenance, rev. b
A. Cleaning optics ........................................................................................................ 4-1
B. Flashlamp removal & replacement ....................................................................... 4-2
C. Rod replacement ...................................................................................................... 4-4
D. Replacing the DI water filter .................................................................................. 4-7
Bacterial growth .................................................................................................... 4-8
E. “O”ring replacement ............................................................................................... 4-9
Chapter V Troubleshooting, rev. b
Troubleshooting charts ....................................................................................... 5-1 to 5
A. Electronics rack troubleshooting ........................................................................... 5-6
B. Q-switch troubleshooting ....................................................................................... 5-8
C. Going to free-running ........................................................................................... 5-10
D. Oscillator alignment optimization ...................................................................... 5-12
E. Oscillator optimization (with an oscilloscope) .................................................. 5-14
F. Measuring oscillator stability in the free-running mode .................................. 5-15
G. Eliminating free-running ..................................................................................... 5-17
H. Dual inline amplifier alignment single rod head 811-09 ................................. 5-20
I. Dual amplifier IR alignment .................................................................................. 5-22
J. Quartz rotator alignment procedure .................................................................... 5-24
K. Amplifier Alignment Single Rod Heads for Precision II 8000 ........................ 5-24
L. Flashlamp voltage adjustment ............................................................................. 5-27
M. Cooling group contamination ............................................................................. 5-28
Chapter VI Parts Lists, rev. b
Precision II 8000 heads & part numbers.............................................................. 6-1 &2
Precision II 9000 heads & part numbers.............................................................. 6-3 &4
Electronics & supplies .................................................................................................. 6-6
Optics/Electro-optics ................................................................................................... 6-6
Chapter VII Appendix, rev. b
A. Express warranty ..................................................................................................... 7-1
B. Limitation of remedy ............................................................................................... 7-1
C. Disclaimer of implied warranty ............................................................................ 7-1
D. Returns, adjustments & servicing ......................................................................... 7-1
E. Service information .................................................................................................. 7-3
Domestic ................................................................................................................. 7-3
Foreign .................................................................................................................... 7-3
F. Lightwave™ Seeder Manual .................................................................................. 7-4
Chapter VIII Operator Notes, rev. b

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List of Figures
Precision II warning labels ...................................................................................... 1-4
Label location diagrams, A, B, C & D .............................................................. 1-5 to 8
Optical layouts of Precision II 8000 ............................................................. facing 2-1
RB601 keypad .......................................................................................................... 2-1
Harmonic stage assembly. ....................................................................................... 2-4
Second harmonic position & THG window & dichroic stage .................................. 2-5
Connecting harmonic to face plate ........................................................................... 2-6
Third harmonic position........................................................................................... 2-6
Fourth harmonic position......................................................................................... 2-9
Precision series chronograph .................................................................................. 2-12
External Trigger Panel (ETP) .................................................................... 2-14 & 3-6
Physical dimensions Precision II series.................................................................. 2-25
Optical layouts of Precision II 9000 ............................................................. facing 3-1
Flashlamp details ...................................................................................................... 3-2
Exploded head drawings ................................................................................... 3-3 & 4
Top & underside view of Precision II 9050 & 8030 benches ............................ 3-7 & 8
Seeder panel on side of bench ................................................................................... 3-9
Cavity closed no lasing & Cavity open and lasing. ............................................... 3-11
Schematic 750V P.S. board .................................................................................... 3-12
Schematic dwg. sync panel .................................................................................... 3-13
Schematic Marx bank............................................................................................. 3-14
Precision II wiring diagrams ........................................................................ 3-15 to 21
Assy. HP71 ............................................................................................................ 3-22
Built-in rack electronics ......................................................................................... 3-23
CU601C with interface box connections. .............................................................. 3-24
RB601 keyboard ..................................................................................................... 3-27

Precision II Operation and Maintenance Manual C
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PCB references for rear panel connections ............................................................. 3-28
CU601C schematics ...................................................................................... 3-38 to 44
PU630C front & rear panels. ................................................................................ 3-46
Reactance-limiting inductor L. .............................................................................. 3-47
PU600C series schematics & drawings ....................................................... 3-50 to 63
CB634C front & rear panels ................................................................................. 3-66
CB600C series schematics & drawings ........................................................ 3-70 to 81
CG604C front & rear panels. ................................................................................ 3-83
Cooling requirements 10 & 30Hz .......................................................................... 3-86
Cooling System, CG604C ...................................................................................... 3-87
CG604C Wiring Diagram Assy ............................................................................ 3-88
Waterflow diagram ................................................................................................ 3-89
Cooling requirements 50Hz ................................................................................... 3-90
System maintenance schedule ....................................................................... facing 4-1
Troubleshooting guide for Precision II series. ......................................................... 5-1
Electronic rack troubleshooting flow chart. ............................................................. 5-2
Optical troubleshooting chart. .......................................................................... 5-3 & 4
Precision II series chronograph. ............................................................................... 5-5
Burn pattern diagram. ............................................................................................. 5-9
Image as seen through rod. .................................................................................... 5-13
Free-running drawings ................................................................................. 5-18 & 19
Alignment aperture positions ............................................................................... 5-20
Alignment adjustment screws. ............................................................................ 5-21
Amplifier alignment burn patterns. ...................................................................... 5-23
Beam block position ................................................................................................ 5-26

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Operation and Maintenance Manual
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Preface
This manual describes how to operate and maintain the Continuum
Precision II series Laser.
Conventions Used in this Manual
LASER RADIATION!
This symbol alerts you to laser radiation hazards during
operation or maintenance procedures.
WARNING!
This symbol warns of other possible risks not related to
laser radiation or electrical hazards.
CAUTION!
This symbol alerts you to a process or procedure that, if not
properly done or followed exactly, will damage the laser or
irrevocably change operating software.
This symbol draws your attention to important or extra infor-
mation that relates to the current subject matter.
Manual Organization
Chapter 1, Safety, provides all the appropriate safety procedures and
warning labels. These instructions must be followed to ensure safe
operation of the laser equipment.
Chapter 2 describes operating instructions for the Precision II series
lasers. A brief installation description is given at the end of the chapter.
Installation of this laser may only be performed by a Continuum cus-
tomer engineer.
Chapter 3 describes the electronic modules and how they work in detail.
These descriptions are enhanced with schematics and drawings.
Chapter 4 describes the routine maintenance procedures to keep the
equipment operating properly. Only those procedures listed may be
performed by the operator.

Precision II Operation and Maintenance Manual C
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Chapter 5 describes troubleshooting procedures to use should the equip-
ment malfunction.
The manual includes parts lists of commonly used components. The
Appendix gives our warranty and phone numbers. An Index is provided
at the end of the manual.
Related Documents
Continuum Documents:
Operator’s Manual for the Continuum NY80 Series Pump Laser, COM
996-0155.
Operator’s Manual for the Continuum NY60 Series Pump Laser, COM
996-0156.
Operator’s Manual for the Continuum Surelite Series, COM 996-0176 &
996-0177.
Laser Safety:
American National Standard for the Safe Use of Lasers, 1986.
Laser Safety Guide, Laser Institute of America, 1977.
Sylvania Safety Rules, Frank S. Canario, Safety Engineer, 1967.
A guide for Control of Laser Hazards, American Conference of Governmen-
tal Industrial Hygienists, 1976.