Spectra-Physics Tsunami - Optics Conversion Procedures; Converting Between Non-overlapping Optics Sets; Converting Between Overlapping Optics Sets; Converting Between fs and ps Configurations

Tsunami Mode-Locked Ti:sapphire Laser
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Figure 4-4: Laser Head, Output Coupler Side View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Figure 4-5: Model 3955 Electronics Module Front Panel Controls and Indicators . . . . . . . . . . . . . . . .4-8
Figure 4-6: Model 3955 Electronics Module Rear Panel Controls and Connections . . . . . . . . . . . . . .4-9
Figure 4-7: Typical MONITOR signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
Figure 4-8: Typical SYNC signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
Figure 4-9: Model 3910 Regulator/Filter Purge Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Figure 5-1: Typical Tsunami Head and Pump Laser Head Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Figure 5-2: Typical System Interconnect Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Figure 5-3: The Gires-Tournois Interferometer (GTI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
Figure 5-4: Tsunami Laser Head PC Board Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
Figure 5-5: Photodiode PC Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10
Figure 6-1: Tsunami fs Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Figure 6-2: Tsunami ps Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Figure 6-3: The M3 Translation Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
Figure 6-4: Cavity Focus Mirrors M2 and M3 and the Laser Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Figure 6-5: Pump Mirrors P1 and P2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Figure 6-6: M1 and M3 Images Focused on the White Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Figure 6-7: Locations of M4 and M5 for fs operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
Figure 6-8: The Slit Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
Figure 6-9: Four Prism/Four Mirror Section of fs Laser Cavity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
Figure 6-10: AOM, Output Coupler, Photodiode PC Board, and Beam Splitter . . . . . . . . . . . . . . . . . .6-12
Figure 6-11: Bandwidth vs. Pulse Width for a Transform-limited sech2 Pulse Shape. . . . . . . . . . . . .6-14
Figure 6-12: Locations of M4 and M5 for ps operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Figure 6-13: AOM, Output Coupler, Photodiode PC Board, and Beam Splitter . . . . . . . . . . . . . . . . . .6-17
Figure 6-14: Precursor to modelocking a ps pulse as seen using an autocorrelator and oscilloscope. 6-18
Figure 6-15: The Birefringent Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
Figure 6-16: Photodiode PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
Figure 6-17: Tsunami fs Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-25
Figure 6-18: Tsunami ps Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-26
Figure 6-19: Pr1 Prism Translation Adjust and Setscrew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-28
Figure 6-20: Tsunami Laser Head PC Board Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-28
Figure 6-21: The Gires-Tournois Interferometer (GTI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-29
Figure 6-22: Pr1/Pr4 prisms showing placement of beam. Refer to Table 6-6 for the value of x. . . . .6-31
Figure 7-1: Transmittance vs. Wavelength for Oxygen and Water Vapor. . . . . . . . . . . . . . . . . . . . . . .7-2
Figure 7-2: Tsunami External Laser Head Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Figure 7-3: Bandwidth vs Pulse Width for a Transform-limited sech2 Pulse Shape. . . . . . . . . . . . . . .7-6
Figure 7-4: Placement of Pr1 and Pr4 in beam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Figure 8-1: The Lok-to-Clock Phase-locked Loop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Figure 8-2: Model 3930 Electronics Module Front Panel Controls and Indicators . . . . . . . . . . . . . . . .8-2
Figure 8-3: Model 3930 Electronics Module Rear Panel Controls and Connections . . . . . . . . . . . . . .8-4
Figure 8-4: Lok-to-Clock fs System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
Figure 8-5: Lok-to-Clock ps System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6
Figure 8-6: Synchronization of two Lok-to-Clock Tsunami Lasers . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-10
Figure 8-7: Typical cross-correlation signal for two LTC Tsunami lasers.. . . . . . . . . . . . . . . . . . . . . . .8-11
Figure 8-8: Synchronization of a Standard Tsunami Laser to a Lok-to-Clock Tsunami Laser. . . . . . .8-12
Figure 8-9: Typical Cross-correlation Signal for an LTC Tsunami Laser and Mode-locked Laser. . . . .8-14
Figure 8-10: The TO 3930 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14
Figure 8-11: A suggested schematic for driving the coarse position M1 motor. . . . . . . . . . . . . . . . . . .8-15
Figure 9-1: Drop and Drag Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
Figure 9-2: Lens Tissue Folded for Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
Figure 9-3: Birefringent Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8
Figure 9-4: AOM, Output Coupler M10, and Beam Splitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-11
Figure 9-5: Underside of Model 3910 showing filter assembly placement and orientation. . . . . . . . . .9-13
Figure A-1: Typical output of a mode-locked laser, where L is the cavity length and c is the