New Wave Research Tempest Bedienungsanleitung

Operator’s Manual

New Wave Research, Inc.

Tempest and Gemini PIV

Nd: YAG Lasers

New Wave Research, Inc.

47613 Warm Springs Blvd.

Fremont, CA 94539

October 2000

Tempest Nd:YAG Laser Operator’s Manual

reserved. Printed in the U.S.A. Reproduction or translation of any part

of this publication, except as permitted by the 1976 United States

Inc. is unlawful.

iii

Preface

This manual contains information for proper installation and operation of

the Tempest, Gemini PIV and accessories. The Tempest and Gemini

PIV comply with the Center for Device and Radiological Health (CDRH)

Standard 21 CFR 1040.

The Tempest and Gemini PIV laser systems are Class 4 lasers and

emit laser radiation that can be harmful to your eyes and skin. It is

essential that the safety section of this manual be read before

installing this laser and that the user follows the instructions given

for safe laser operation.

Do not attempt to repair the laser while it is under warranty. Report all

problems to New Wave Research, Inc. for warranty repair.

New Wave Research, Inc. can be reached at:

47613 Warm Springs Blvd.

Fremont CA 94539

Tel: 510-249-1550

Tel: 800-566-1743

FAX: 510-249-1551

E-mail: [email protected]

Web: http://www.new-wave.com

Tempest Nd:YAG Laser Operator’s Manual

Table of Contents

Preface......................................................................iii

Chapter One, Laser Safety ......................................1

Introduction.......................................................................................................................................3

Optical Safety....................................................................................................................................3

Laser Safety ......................................................................................................................................4

Electrical Safety................................................................................................................................5

Safety Features.................................................................................................................................5

Laser Covers ................................................................................................................................. 5

Interlocks ....................................................................................................................................... 5

Exit Shutter .................................................................................................................................... 6

CE Declaration..................................................................................................................................6

Government Regulations.................................................................................................................7

Laser Classification ....................................................................................................................... 7

Location of Safety Labels .............................................................................................................. 7

Chapter Two, Description and Specifications.....12

Introduction.....................................................................................................................................14

Optical Layout.................................................................................................................................14

Optical Attenuator........................................................................................................................ 14

Second Harmonic Generation ..................................................................................................... 15

Third Harmonic Generation ......................................................................................................... 15

Fourth Harmonic Generation....................................................................................................... 15

External Computer Control............................................................................................................15

Safety Interlocks.............................................................................................................................15

Power Supply..................................................................................................................................16

Electronics ................................................................................................................................... 16

Water Cooling System................................................................................................................. 16

Tempest Specifications..................................................................................................................16

Gemini PIV Specifications .............................................................................................................17

Chapter Three, Installation....................................19

Voltage Requirements....................................................................................................................20

Power Line Fuse.............................................................................................................................20

Laser Umbilical...............................................................................................................................21

Control Panel ..................................................................................................................................22

Interlock Connector........................................................................................................................22

Cooling System...............................................................................................................................22

Chapter Four, Operation........................................23

Starting the Laser...........................................................................................................................25

Turning the Laser Off.....................................................................................................................26

Controls and Indicators .................................................................................................................26

Tempest Nd:YAG Laser Operator’s Manual

Power Supply .............................................................................................................................. 26

Control Panel .............................................................................................................................. 27

Interlocks ........................................................................................................................................ 27

Internal Interlocks........................................................................................................................ 27

External Interlock ........................................................................................................................ 27

Triggering and Timing ................................................................................................................... 28

Inputs and Outputs...................................................................................................................... 28

Internal Triggering ....................................................................................................................... 29

External Triggering...................................................................................................................... 30

External Q-switch Triggering....................................................................................................... 32

External Flashlamp Triggering .................................................................................................... 32

External TTL Direct Triggering.................................................................................................... 32

Harmonic Generators..................................................................................................................... 34

Second Harmonic Installation ..................................................................................................... 34

Third Harmonic Installation ......................................................................................................... 36

Fourth Harmonic Installation ....................................................................................................... 36

Gemini PIV Alignment.................................................................................................................... 37

Gemini UV Operation..................................................................................................................... 39

Third Harmonic Installation ......................................................................................................... 40

Fourth Harmonic Installation ....................................................................................................... 40

Return to 532 nm operation ........................................................................................................ 41

Chapter Five, Maintenance ....................................43

Introduction .................................................................................................................................... 45

Cooling System.............................................................................................................................. 45

Deionization Cartridge Replacement .......................................................................................... 45

Cooling System Flush ................................................................................................................. 47

Flashlamp Replacement................................................................................................................ 49

Chapter Six, Troubleshooting ...............................53

Introduction .................................................................................................................................... 55

Observed Conditions..................................................................................................................... 55

Recommended Procedures........................................................................................................... 55

Procedure 1. Laser does not start..............................................................................................55

Procedure 2. Laser starts, but no light is emitted ...................................................................... 56

Procedure 3. Low fundamental output energy........................................................................... 56

Procedure 4. Unstable laser energy .......................................................................................... 56

Procedure 5. Clipped laser beam .............................................................................................. 57

Procedure 6. Low second harmonic energy .............................................................................. 57

Procedure 7. Low third harmonic energy ................................................................................... 58

Procedure 8. Low fourth harmonic energy................................................................................. 58

Appendix A, Part Numbers ....................................62

Appendix B, Limited Warranty ..............................62

vii

Tempest Nd:YAG Laser Operator’s Manual

viii

List of Figures

Figure 1-1: Location of Labels ................................................................................................................... 8

Figure 1-2: Certification Label.................................................................................................................... 9

Figure 1-3: Power Supply Identification Label ........................................................................................... 9

Figure 1-4: Laser Head Identification Label............................................................................................... 9

Figure 1-5: Warning Label, U.S. .............................................................................................................. 10

Figure 1-6: Warning Label, International.................................................................................................. 10

Figure 1-7: Aperture Label ....................................................................................................................... 11

Figure 1-8: Defeatable Interlock Label..................................................................................................... 11

Figure 2-1. Layout of Tempest Head with Options ................................................................................. 14

Figure 3-1: Voltage Switch....................................................................................................................... 20

Figure 3-2: Power Supply Back Panel ..................................................................................................... 21

Figure 4-1: Control Panel Layout ............................................................................................................. 25

Figure 4-2: Power Supply BNC input/output Connections....................................................................... 28

Figure 4-3: Timing Diagram for Internal Triggering.................................................................................. 30

Figure 4-4: Timing Diagram for External Triggering ................................................................................ 31

Figure 4-5: Second harmonic Waveplate Optimization ........................................................................... 35

Figure 4-6: Second harmonic Angle Adjustment ..................................................................................... 35

Figure 4-7: Gemini PIV Beam Overlap Adjustment ................................................................................ 38

Figure 4-8: Gemini with Extended Base Plate for UV Operation............................................................. 39

Figure 5-1. Cooling System in the Power Supply ................................................................................... 46

Figure 5-2. Deionization Cartridge and Water Reservoir........................................................................ 48

Figure 5-3. Removing Leads to Replace Flashlamp............................................................................... 49

Figure 5-5. Removal of Pump Chamber Assembly End Cap ................................................................. 50

Figure 5-6. Pump Chamber Water Seal O-rings..................................................................................... 51

List of Tables

Table 2-1: Tempest Performance Specifications..................................................................................... 16

Table 2-2: Gemini PIV Performance Specifications................................................................................. 17

Table 4-1: DB 25 Pin Assignments .......................................................................................................... 33

Table 4-2: TTL Direct Control Signals...................................................................................................... 33

Table 4-3: TTL Direct Feedback Signals ................................................................................................. 34

Table 6-1: Observed Conditions ............................................................................................................. 55

Table B-1: Part Numbers for Laser Head ............................................................................................... 62

Table B-2: Part Numbers for Laser Power Supply.................................................................................. 62

Chapter One,

Laser Safety

Tempest Nd:YAG Laser Operator’s Manual

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