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TABLE OF CONTENTS
PREFACE.............................................................................................................................................i
A B
RIEF OVERVIEW OF LIGHTWAVE ELECTRONICS............................................................................i
P
ATENTS.............................................................................................................................................i
W
ARRANTY.......................................................................................................................................ii
LIMITATION OF LIABILITY..................................................................................................................ii
SECTION 1: OVERVIEW...............................................................................................................1
1.1 INJECTION SEEDING THEORY ...........................................................................................1
1.1.1 Longitudinal Modes of a Standing Wave Resonator...........................................................1
1.1.2 Q-switch Buildup Time: Unseeded Operation ...................................................................3
1.1.3 Q-switch Buildup Time: Seeded Operation.........................................................................3
1.1.4 Frequency Control of the Host Laser..................................................................................4
1.1.5 Suppression of Spatial Hole Burning..................................................................................6
1.1.6 Frequency Control of the Injection Seeder .........................................................................7
1.1.7 Frequency Overlap of Seeder and Host Laser ....................................................................8
1.2 DESCRIPTION OF SEEDER SYSTEM..................................................................................9
1.2.1 Seed Laser Source ...............................................................................................................9
1.2.2 Collimating Lens and Half-wave Plate.............................................................................10
1.2.3 Faraday Isolator ...............................................................................................................10
1.2.4 Telescope Assembly...........................................................................................................10
1.2.5 Q-switch Build-up Time Minimization Circuit (Signal Processor)...................................10
1.2.6 Temperature Control and Power Supply Circuits.............................................................10
1.3 HOST LASER MODIFICATIONS.........................................................................................12
1.3.1 Piezoelectric Frequency Tuning Element..........................................................................12
1.3.2 Quarter-wave plates..........................................................................................................12
1.3.3 Polarizer Housing Window (not shown) ...........................................................................13
1.3.4 Internal Cooling Water Temperature Stabilization...........................................................13
1.3.5 Q-Switch Drive Modification ............................................................................................13
1.3.6 Elimination of All Secondary Etalon Effects.....................................................................13
1.4 LASER SAFETY ....................................................................................................................14
1.4.1 List of Terms......................................................................................................................14
1.4.2 Safety Summary.................................................................................................................14
1.4.3 Laser Emission Levels.......................................................................................................15
1.4.4 Safety Features..................................................................................................................15
SECTION 2: INSTALLATION.....................................................................................................18
2.1 HOST LASER MODIFICATIONS.........................................................................................18
2.1.1 Marx Bank.........................................................................................................................19
2.1.2 Cooling Water Stabilization..............................................................................................19
2.1.3 Vibration Isolation ............................................................................................................19
2.1.4 Polarizer Assembly Modifications ....................................................................................20
2.1.5 Quarterwave Waveplate Installation.................................................................................21
2.1.6 Piezo Installation...............................................................................................................22
2.2 SEEDER INSTALLATION....................................................................................................23