Tsunami - Beckman Institute Laser Resource Center

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Tsunami g. Open the shutter. 15. Align MI0. a. Place a white card with a 5 mrn diameter hole in it between M4 and M5 SO the hole is centered on the reflected fluorescent image from M4. b. Adjust M10 vertically and horizontally to direct the reflected image from Mlo back through the hole in the card and overlap it with the image coming from M4. To determine which reflected image comes from MlO, watch the M5 side of the card and slightly adjust MI0 until you see which image moves. c. Remove the card and lasing should begin. d. Adjust MI and Mlo to optimize Tsunami output power. 16. Verify the beam is centered on Mlo and adjust M3 if necessary. 17. Optimize laser output. Refer to chapter 7, "Operation: Optimizing Laser Output." 18. Adjust the photodiode pc board if required. Due to the wedge-shape of Mlo, 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. Mode lock Tsunami. Refer to chapter 7, "Operation: Mode-locking the Laser." This completes the fs to ps conversion. Ps to fs Conversion Verify Tsunami is lasing prior to beginning this procedure. 1. Close the pump beam shutter and turn off the electronics module. DANGER: HIGH VOLTAGE The pc board on the floor of the laser head contains high voltage. Turn off the Model 3955 electronics module to disable this board when removing the GTI. 2. Remove the plastic cover from the laser head pc board (3 screws). 3. Disconnect the GTI cables.
I1 I1 il ; I I I I iil I Alignment a. Disconnect the gray GTI heater cable at connector Jp on the laser head pc board (refer to Figure 5-5). b. Disconnect the black coaxial cable from the GTI (pull it straight off), and from the J6 connector on the pc board (unscrew it). The black cable can be left in the bottom of the laser head for storage, but it must be disconnected from the pc board. This is a high voltage connection. 4. Remove the GTI module. a. Loosen the three screws holding the GTI to the rear mirror plate, and turn the three D-shaped cam locks so the flat portion of the cam disengages the GTI mounting ring (Figure 6-17). b. Slide the GTI from the mirror plate, taking care not to snag the gray heater cable on anything. Store it in its box. 5. Install the high reflector (HR). a. Verify the correct optic is installed in the mounting ring. Read the part number printed on its barrel. Its description and part number is found in the tables at the end of chapter 10, "Options and Accessories." The v-shaped arrow on the barrel points to the coated, intracavity surface. b. Slide the HR mounting ring into the rear mirror plate, turn the three cam locks so the round portion of the cam captures the ring, and tighten the screws. 6. Open the shutter and reestablish lasing. a. Place a white card in front of mirror M5. b. Adjust M1 vertically and horizontally to overlap the horizontal oval fluorescent image from M1 over the vertical image from M3 on the card to form a cross-shaped image (Figure 6-7). c. Remove the card. 7. Remove the M4 mirror holder from the ps mount position and install it into the fs mount near the input end of the laser head (Figure 6-8). Do not relocate the mount. 8. In like manner, remove the M5 mirror holder from its ps mount position and install it into the fs mount near the output end of the laser head (Figure 6-8). Note: these last two steps are required to reestablish correct cavity length now that the prisms will be placed in the beam path. These mirror positions were preset at the factory. 9. Venfy the fluorescence from M4 is centered on M5. If not centered, adjust M4 vertically and horizontally until it is.
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Tsunami Mode-locked Ti: sapphire La
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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
Page 54 and 55: 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 106 and 107: Tsunami 10. Move Prl and Pr4 into t
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
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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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