Tsunami - Beckman Institute Laser Resource Center

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<strong>Tsunami</strong> 10. Move Prl and Pr4 into the beam path. a. Loosen the dovetail setscrew on each prism dovetail mount (Figure 6- 16). b. Use a hex ball driver to adjust the screw on the mount exactly 10 turns counterclockwise to move the prism into the beam path. You need to be exact in your turns because, when you convert the laser for ps operation again, you will back the prisms out exactly 10 turns. Small holes in the beam shields provide access to the drive screw. c. Tighten the setscrews. Do not over-tighten. 11. Place a white card about 10 cm outside the output window and use an ir viewer to see the fluorescent image. 12. Adjust M5 to direct the fluorescence through the prism sequence and out the laser. 13. Align MlO. a. Place a white card with a 5 mm diameter hole in it between M4 and M5 SO the hole is centered on the reflected fluorescent image from M4. b. Adjust MI0 vertically and horizontally to direct the reflected image from Mi 0 back through the hole in the card and overlap it with the image coming from M4. To determine which reflected image comes from Ml0, watch the M5 side of the card and slightly adjust Ml0 until you see which image moves. c. Remove the card and lasing should begin. d. Adjust M1 and Mlo to optimize <strong>Tsunami</strong> output power. 14. Close the shutter and remove the bi-fi. a. Turn the bi-fi micrometer fully clockwise. b. Loosen the setscrew on the bi-fi mount holding the filter (Figure 6-3), and carefully lift the filter out. Store the filter in a safe, clean place. 15. Remove Mlo and replace it with the appropriate optic for ps operation. Refer to the optics tables in chapter 10. Mlo is held in place by a screw-in holder. Unscrew the holder and the mirror will come out with it. a. Reach in from both sides of the Ml0 mount and unscrew the knurled mirror holder of the output coupler (Figure 6-12).
Alignment b. Wearing clean finger cots or gloves, grab the mirror by its barrel and remove it from its holder. c. Clean the appropriate Mlo as described in "Maintenance: General Procedures for Cleaning Optics" in chapter 9, using the "drop and drag" method. d. Install the optic in its holder. The optic has a v-shaped arrow on its barrel which points to the coated surface that faces intracavity. Press the optic into the holder by the barrel until the O-ring captures it. Do not press on its optical surface. e. Clean the intracavity side in the same manner. f. Screw the mirror holder into its mount. Finger tight is sufficient; excessive force will damage the optic. g. Open the shutter. 16. Repeat step 13. 17. Turn on the Model 3955 electronics module and let warm up 20 minutes. 18. Adjust the photodiode pc board if required. Due to the wedge-shape of MI0, the photodiode pc board might require adjustment to maximize the photodiode signal as seen on the Model 3955 photodiode indicator. Refer to "Aligning the Photodiode PC Board" earlier in this chapter. 19. Install the tuning slit assembly. WARNING To avoid damaging nearby optics when installing the slit, carefully move it into place and use your hand to support it while you tighten the mounting setscrew. a. Place the tuning slit assembly into the laser head and onto the micrometer shaft. Refer to Figure 6-9. b. Rotate the slit width adjustment screw until the dowel pin on the mating shaft can slide into the slot. c. Seat the slit assembly against the micrometer stop. d. Tighten the setscrew. 20. Open the shutter and tune the laser to the desired wavelength. Refer to chapter 7, "Operation: Selecting Wavelength, fs Configuration."
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Tsunami Mode-locked Ti: sapphire La
Page 5 and 6:
Table of Contents ... Preface .....
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Table of Contents . Chapter 6: Alig
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Table of Contents Chapter 10: Optio
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Table of Contents Figure 4-7: Typic
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Table of Contents Figure A-6: The f
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Warning Conventions The following w
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List of Abbreviations Used in this
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Tsunami Figure 1-1: The Tsunami Las
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Chapter 2 Laser Safety DANGER The T
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Laser Safety CA UTlON Use of contro
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1 1 1 Il I 11 I I 1 El l11111II~Ill
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Chapter 3 Laser Description General
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Laser Description growth techniques
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Laser Description - AOM OC n Fast P
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Laser Description 2.4 - 2.2 - 2.0 -
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I IIIIIN III I I 1 I 11111 i~ I I I
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I II li I I I i 1 il I 1 11 I 1 1 1
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I Laser Description . Outline Dimen
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Tsunami Input Bezel Connections The
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Tsunami Opto-Mechanical Controls Al
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Tsunami Blue Knob: Vertical Adjust
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~lpl~ f \ Tsunami Opto-Mechanical C
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Tsunami Figure 4-7: 'Qpical MONITOR
Page 56 and 57: Tsunami r @ Spectra-Physics - - 4 2
Page 58 and 59: Tsunami Laser Installation Installi
Page 60 and 61: Tsunami Setting up the Routing Mirr
Page 62 and 63: Tsunami Aligning the Tsunami Laser
Page 64 and 65: Tsunami A -----------. PHOTODIODE O
Page 66 and 67: Tsunami Removing the Purge Line fro
Page 68 and 69: Tsunami Motorized Mount "Dm-shaped
Page 70 and 71: Tsunami I I J3 3930 - - - #,-,I --J
Page 72 and 73: Tsunami CA UTION DO NOT remove or a
Page 74 and 75: Tsunami Refer to the tables at the
Page 76 and 77: Tsunami b. Move the stage by hand a
Page 78 and 79: Tsunami There will be one or two re
Page 80 and 81: Tsunami Figure 6-9: The Slit Contro
Page 82 and 83: Tsunami b. Place a white card with
Page 84 and 85: Tsunami Aligning the Photodiode PC
Page 86 and 87: Tsunami To measure pulses, use a Sp
Page 88 and 89: Tsunami pulses, adjust the coarse c
Page 90 and 91: Tsunami Selecting, Installing, and
Page 92 and 93: Tsunami Unless you are certain the
Page 94 and 95: Tsunami Prism Translation Adjust Fi
Page 96 and 97: Tsunami i. Route the GTI heater cab
Page 98 and 99: Tsunami Figure 6-18: Pr1/Pr4 prisms
Page 100 and 101: Tsunami Converting Between fs and p
Page 102 and 103: Tsunami b. Using an ir viewer, adju
Page 104 and 105: Tsunami g. Open the shutter. 15. Al
Page 108 and 109: Tsunami 21. Mode lock Tsunami. Refe
Page 110 and 111: I " n 3 1 ' ! ' I . I 8 8 8 " t 8 0
Page 112 and 113: Tsunami recommend using 99.999% pur
Page 114 and 115: Tsunami Mode Locking the Laser 6. W
Page 116 and 117: Tsunami - - - 710 nrn - - 790 nrn -
Page 118 and 119: 4 Tsunami Beam % 2 mm (0.08 in.) Pr
Page 120 and 121: Tsunami Table 7-1: Bi-fi Selection
Page 123 and 124: I I1 ! I : I I I ill 8 I !Il! I1I l
Page 125 and 126: Lok-to-Clock Electronics LEVEL cont
Page 127 and 128: Lok-to-Clock Electronics AOM M5f-4
Page 129 and 130: Lok-to-Clock Electronics Installing
Page 131 and 132: I I1 I i l l I iil 111 ,111 Ill ,il
Page 133 and 134: P Lok-to-Clock Electronics Model 20
Page 135 and 136: I 1 1 I 1~~~ 11 I 1 1 1 1 .III :ill
Page 137 and 138: Lok-to-Clock Electronics Figure 8-9
Page 139: I I1 I l I 1 bll Lok-to-Clock Elect
Page 142 and 143: Tsunami "Clean" is a relative descr
Page 144 and 145: Tsunami Figure 9-1: Drop and Drag M
Page 146 and 147: Tsunami With the exception of pump
Page 148 and 149: Tsunami On rare occasions, the lowe
Page 150 and 151: Tsunami 8. Open the pump laser shut
Page 152 and 153: Tsunami 7. Remove the screws (4) ho
Page 154 and 155: Tsunami DryJClean Flow Adjust Nitro
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Tsunami diode such as the Model 393
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€968-PEP0 ES68-PEP0 PS68-PEP0 ES6
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Tsunami Check marks indicate which
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Tsunami Table 10-11: GTI and Bi-Pi
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Tsunami Generic Troubleshooting (No
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Tsunami Symptom: Laser will not mod
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Tsunami Symptom: Unable to mode loc
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Tsunami Symptom: Unable to mode loc
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Tsunami Symptom: Cannot see individ
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Tsunami Symptom: PZT oscillates whe
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I I ill ; I l l I I lll.l1 I I I *
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I I 111 il I iil i lllill ll I I ll
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I I il : I I I 1 I Appendix A Mode
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Mode Locking is chosen to be the sa
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I I 0 I I 1 I )I Ulllllll ill I Mod
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Mode Locking SPM will, thus, broade
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Mode Locking The net intracavity GV
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Appendix B Pulse Width Measurement
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I I 0 I I 1 1 LI I lillll Ill I!,ll
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Pulse Width Measurement -% GVD Comp
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I I I I I I I I ti 911 I1 I Pulse W
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I I I I I I B I IL 1 1 i 1111 I L I
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I I 0 I I 1 1 L I I Pulse Width Mea
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Appendix C Setting the Line Voltage
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Appendix D Material Safetv Data She
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Material Safety Data Sheets MATERIA
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I I I 1 r $1 I Bill II I I I I Ill
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Material Safety Data Sheets MATERIA
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Tsunami - Beckman Institute Laser Resource Center

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