Spectra-Physics Tsunami - Report Form for Problems and Solutions

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Report Form for

Problems and Solutions

We have provided this form to encourage you to tell us about any difficulties you have experienced in

using your Spectra-Physics instrument or its manual—problems that did not require a formal call or

letter to our service department, but that you feel should be remedied. We are always interested in

improving our products and manuals, and we appreciate all suggestions.

Thank you.

From:

Name

Company or Institution

Department

Address

Instrument Model Number Serial Number

Problem:

Suggested Solution(s):

Mail To: FAX to:

Spectra-Physics, Inc. Attention: ISL Quality Manager

ISL Quality Manager (650) 961-7101

1330 Terra Bella Avenue, M/S 15-50

Post Office Box 7013

Mountain View, CA 94039-7013

U.S.A.

E-mail: sales@splasers.com

www.spectra-physics.com

Main Page

Preface3
Environmental Specifications5
- CE Electrical Equipment Requirements5
- FCC Regulations5
- Table of Contents7
Table of Contents9
Warning Conventions15
Standard Units17
Abbreviations19
Unpacking and Inspection21
Chapter 1: Introduction23
- The Tsunami System23
- Figure 1-1: the Tsunami Laser System (Chiller Not Shown)23
- System Configurations24
  - Conversions24
  - Upgradeability25
- Patents25
Chapter 2: Laser Safety27
- Precautions for the Safe Operation of27
  - Class IV-High Power Lasers27
  - Figure 2-2: Folded Metal Beam Target28
- Interlocks29
- Figure 2-3: Laser Head Shutter Interlock29
- Maintenance Required to Keep this Laser Product in Compliance with Center for Devices and Radio Logical Health (CDRH) Regulations30
- CD/CDRH Radiation Control Drawing31
- Figure 2-4: Tsunami Radiation Control Drawing (Refer to Labels on Next Page)31
- CE/CDRH Warning Labels32
- CE Declaration of Conformity34
- Sources for Additional Information36
  - Laser Safety Standards36
  - Equipment and Training37
Chapter 3: Laser Description39
- General Overview39
- Ti:sapphire Laser Theory40
- Figure 3-1: Absorption and Emission Spectra of Ti:sapphire40
- Pumping Optimization41
- Tsunami Laser Description42
  - Pump Laser42
  - The Folded Cavity42
  - Figure 3-3: Beam Path for Tsunami Models 3960 and 3941 Femtosecond Configurations42
- A/O Modulator (AOM)43
- Wavelength Tuning Characteristics43
- Figure 3-4: Beam Path for Tsunami Model 3950 Picosecond Configuration43
- Figure 3-5: Tsunami Femtosecond Tuning Curves for Broadband Optics When Pumped by the Various Millennia Diode-Pumped Cw Lasers Shown44
- Figure 3-6: Tsunami Picosecond Tuning Curves for Broadband Optics When Pumped by the Various Millennia Diode-Pumped CW Lasers Shown45
- Figure 3-7: Tsunami Femtosecond Tuning Curves for the Optics Sets Shown When Pumped by a 10 W Millennia Xs Diode-Pumped CW Laser45
- Figure 3-8: Tsunami Femtosecond Tuning Curves for the Optics Sets Shown When Pumped by a 5 W Millennia Vs Diode-Pumped CW Laser46
- Figure 3-9: Tsunami Picosecond Tuning Curves for the Optics Sets Shown When Pumped by a 10 W Millennia Xs Diode-Pumped CW Laser46
- Wavelength Selection47
- Figure 3-10: Tsunami Picosecond Tuning Curves for the Optics Sets Shown When Pumped by a 5 W Millennia Vs Diode-Pumped CW Laser47
- Pulse Width Selection48
- Purging the Tsunami48
- Figure 3-11: Transmittance Vs. Wavelength for Oxygen and Water Vapor49
- Specifications50
- Table 3-1: Tsunami Femtosecond Broadband Performance When Pumped by a Millennia Laser50
- Table 3-2: Tsunami Picosecond Broadband Performance When Pumped by a Millennia Laser51
- Table 3-3: Tsunami Femtosecond Performance When Pumped by a Millennia Laser52
- Table 3-4: Tsunami Picosecond Performance When Pumped by a Millennia Laser53
- Table 3-5: Electrical, Mechanical and Physical Specifications54
- Table 3-6: Environmental Specifications54
- Table 3-7: Lok-To-Clock Tsunami Specifications55
- Outline Dimensions for Models 3941, 3950 and 396056
- Figure 3-12: Outline Drawing56
Chapter 4: Controls, Indicators and Connections57
- Introduction57
- Laser Head Controls57
- Figure 4-1: Tsunami External Laser Head Controls. Not All Controls Are Present on some Models57
- Input Bezel Connections58
- Model 3955 Electronics Module Controls64
- Model 3910 Purge Unit Controls67
- Figure 4-9: Model 3910 Regulator/Filter Purge Unit67
Chapter 5: Installation69
- Laser Installation69
Chapter 6 Alignment79
- Equipment Required80
- Front-End Alignment80
- Figure 6-1: Tsunami Fs Configuration81
- Figure 6-2: Tsunami Ps Configuration81
- Table 6-1: Pump Power Requirements82
- Cavity Alignment for a FS System85
- Cavity Alignment for a PS System92
- Selecting, Installing and Aligning the Birefringent Filter98
- Figure 6-15: the Birefringent Filter98
- Table 6-3: Bi-Fi Alignment for Picosecond Operation99
- Aligning the Photodiode PC Board100
- Figure 6-16: Photodiode PC Board100
- Test for Proper Modelocking101
- Table 6-4: Photodiode Part Numbers101
- Converting between Non-Overlapping Optics Sets103
- Converting between Overlapping Optics Sets111
- Converting between Fs and Ps Configurations112
- Coarse Phase Adjustment and Changing the RF and Photodiode Cables118
Chapter 7: Operation121
- System Start-Up121
- Figure 7-1: Transmittance Vs. Wavelength for Oxygen and Water Vapor122
- Optimizing Laser Output123
- Figure 7-2: Tsunami External Laser Head Controls123
- Modelocking the Laser124
- Selecting Wavelength, Fs Configuration (Using the Slit)125
- Selecting Wavelength, Ps Configuration (Using the Birefringent Filter)126
- Operating in the Broad Fs Regime (150 Fs - 1 Ps)127
  - Tsunami System Verification127
  - Conversion for Broad Femtosecond Operation127
- Operating in the Broad Picosecond Regime128
- Operating with the Ultrashort Pulse Option (USP)130
- Operating in the Sub-35 Fs Regime130
  - Troubleshooting in the Sub-35 Fs Regime133
- Operating with Lok-To-Clock134
- System Shut-Down135
Chapter 8: Lok-To-Clock Electronics137
- Functional Overview137
- Figure 8-1: the Lok-To-Clock Phase-Locked Loop137
- System Controls138
- Installing the Model 3930143
- Operation Notes144
  - Start-Up145
  - Shut down145
- Typical Set-Ups145
- Operating a Model 3941D/3950D/3960D Without the Model 3930150
- Lok-To-Clock Computer Interface152
- Differences between the Lok-To-Clock Implementation and the SCPI Standard157
Chapter 9: Maintenance159
- Notes on the Cleaning of Laser Optics159
  - Equipment Required160
  - Standard Cleaning Procedures160
- General Procedures for Cleaning Optics161
- Figure 9-1: Drop and Drag Method162
- Figure 9-2: Lens Tissue Folded for Cleaning162
- Removing and Cleaning Tsunami Optics163
Chapter 10: Options and Accessories173
- Options173
  - Ultrashort (< 50 Fs) Pulse Option173
  - Ultrashort (< 35 Fs) Pulse Option173
  - Broad Femtosecond Pulse Option173
  - Broad Picosecond Pulse Option173
  - 76 Mhz Option173
  - Lok-To-Clock ® System174
- Accessories174
  - Model 409-08 Scanning Autocorrelator174
  - Model 3980 Frequency Doubler/Pulse Selector174
  - Model 3931174
  - GWU Harmonic Generator System174
  - Opal ® System174
  - Gwu-Opo-Ps175
  - Regenerative Amplifier Systems175
- Accessory and Conversion Optics Sets176
- Table 10-1: Standard Fs Tsunami Mirrors-Millennia Xs Pump Laser176
- Table 10-2: Standard Fs Tsunami Mirrors-Millennia Vs Pump Laser176
- Table 10-3: Standard Ps Tsunami Mirrors-Millennia Xs Pump Laser176
- Table 10-4: Standard Ps Tsunami Mirrors-Millennia Vs Pump Laser176
- Table 10-5: Broadband Fs Tsunami Mirrors-Millennia Xs Pump Laser177
- Table 10-6: Broadband Fs Tsunami Mirrors-Millennia Viiis Pump Laser177
- Table 10-7: Broadband Fs Tsunami Mirrors-Millennia Vs Pump Laser177
- Table 10-8: Broadband Ps Tsunami Mirrors-Millennia Xs Pump Laser177
- Table 10-9: Broadband Ps Tsunami Mirrors-Millennia Viiis Pump Laser177
- Table 10-10: Broadband Ps Tsunami Mirrors-Millennia Vs Pump Laser177
- Table 10-11: Fs Tsunami-Wavelength Conversion Sets178
- Table 10-12: Fs Tsunami-Wavelength Conversion Sets178
- Table 10-13: Ps Tsunami-Wavelength Conversion Sets179
- Table 10-14: Ps Tsunami-Wavelength Conversion Sets179
- Table 10-15: Fs to Ps Tsunami-Wavelength Conversion Sets180
- Table 10-16: Ps to Fs Tsunami-Wavelength Conversion Sets180
- Table 10-17: GTI and Bi-Fi for Broad Pulse Operation181
- Table 10-18: Photodiode PC Board181
Chapter 11 Service and Repair183
- Troubleshooting Guide183
- Generic Troubleshooting (Non-Lok-To-Clock Systems)184
- Troubleshooting LTC Systems190
- Table 11-1: Optics191
- Table 11-2: Hardware191
- Table 11-3: Model 3910 Purge Unit Filter Hardware191
Chapter 12 Customer Service193
- Warranty193
- Return of the Instrument for Repair194
- Service Centers195
Appendix A Modelocking197
- General197
- Modelocking Techniques198
- Figure A-1: Typical Output of a Mode-Locked Laser, Where L Is the Cavity Length and C Is the198
- Regenerative Modelocking in the Tsunami200
- Group Velocity Dispersion (GVD201
  - Nonlinear Effects202
- GVD Compensation203
  - And Produces a Pulse Which Has no Chirp204
Appendix B Pulse Width Measurement207
- Introduction207
- The Autocorrelation Technique207
  - Measurement of Ultrashort Pulses207
- Signal Interpretation210
- Table B-1 : Second-Order Autocorrelation Functions and Time-Bandwidth Products for210
  - GVD Compensation in Measurement of Ultrashort Pulses211
  - Calculating Pulse Broadening213
- Table B-3: Positive Dispersion Values @ 800 Nm213
- Table B-4: Negative Dispersion Values @ 800 Nm213
  - CW Breakthrough215
- Table B-5: Recommended Monochromator/CCD Components217
Appendix C: Setting the Line Voltage Switch219
Appendix D: Lok-To-Clock Labview Interface221
- Overview221
- Setup221
- Controls Description222
Appendix E Material Safety Data Sheets223
Notes231
Report Form for Problems and Solutions237

Spectra-Physics Tsunami - Report Form for Problems and Solutions

Table of Contents