Tsunami - Beckman Institute Laser Resource Center

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Tsunami Blue Knob: Vertical Adjust Green Knob: Horizontal Adjust &cow bydl Figure 4-4: Laser Head, Output Coupler Side View
. .- ,. , ~nata I I 1 1 ILI~~II~AII i i I , rll Ill IIIL la I I Id, l I I Controls. Indicators and Connections Opto-Mechanical Controls fs Configuration Rod translation control-vertically translates the Ti:sapphire rod in a plane parallel to the face of the rod. Use it to maximize output power during alignment. The dove-tail slide is held in place with two screws (refer to Figure 6-5). The following describes those opto-mechanical controls specific to Tsunami lasers configured for femtosecond operation. Refer to Figure 4-3 and Figure 4-4. Prl and Pr4 prisms-in conjunction with Pr2 and Pr3, compensate for positive GVD in a fs system. Each prism mount has a translation adjust for driving the prism into the beam path for fs operation, and completely out of the beam path for ps operation. Once set, a setscrew on the slide locks each in position. These prisms are absent in a Model 3950 ps-only laser. WARNING Prisms Prl and Pr4 are pre-aligned at the factory. DO NOT adjust these prisms until specifically told to do so elsewhere in this manual. M6 through M9 prism mirrors--direct the cavity beam from M5 through the prisms and into the AOM. Each mirror has vertical and horizontal alignment adjustments. The inside adjust is for vertical, the outside for horizontal. Prism dispersion compensation control (Pr2 and Pr3)-used to adjust prism-pair Pr2 and Pr3 for overall cavity dispersion balance and shortest output pulse. It is used interactively with the nearby slit control. The micrometer control is available when the laser head cover is in place. This control is absent on the Model 3950 ps-only laser. Slit wavelength selector-used to select laser wavelength. The micrometer control is available when the laser head cover is in place. Slit bandwidth selector-used to change the output pulse bandwidth. This Allen screw adjustment is set at the factory for a specified output depending on the optics set installed. Reset it if you change optics set. If set too wide, it causes cw break-through; set too narrow, it limits bandwidth and produces long pulses. MI high reflector (HR) --one of two cavity end mirrors. It reflects all laser light back into the cavity. The HR replaces the GTI used in the ps configuration. Its vertical and horizontal adjustments allow you to align the laser cavity and to optimize output power and mode quality. These controls are available when the laser head cover is in place.
Page 1: Tsunami Mode-locked Ti: sapphire La
Page 5 and 6: Table of Contents ... Preface .....
Page 7 and 8: Table of Contents . Chapter 6: Alig
Page 9 and 10: Table of Contents Chapter 10: Optio
Page 11 and 12: Table of Contents Figure 4-7: Typic
Page 13 and 14: Table of Contents Figure A-6: The f
Page 15: Warning Conventions The following w
Page 19: List of Abbreviations Used in this
Page 22 and 23: Tsunami Figure 1-1: The Tsunami Las
Page 25 and 26: Chapter 2 Laser Safety DANGER The T
Page 27 and 28: Laser Safety CA UTlON Use of contro
Page 29 and 30: 1 1 1 Il I 11 I I 1 El l11111II~Ill
Page 31 and 32: Chapter 3 Laser Description General
Page 33 and 34: Laser Description growth techniques
Page 35 and 36: Laser Description - AOM OC n Fast P
Page 37 and 38: Laser Description 2.4 - 2.2 - 2.0 -
Page 39 and 40: I IIIIIN III I I 1 I 11111 i~ I I I
Page 41 and 42: I II li I I I i 1 il I 1 11 I 1 1 1
Page 43: I Laser Description . Outline Dimen
Page 46 and 47: Tsunami Input Bezel Connections The
Page 48 and 49: Tsunami Opto-Mechanical Controls Al
Page 52 and 53: ~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
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Tsunami Converting Between fs and p
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Tsunami b. Using an ir viewer, adju
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Tsunami g. Open the shutter. 15. Al
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Tsunami 10. Move Prl and Pr4 into t
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Tsunami 21. Mode lock Tsunami. Refe
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I " n 3 1 ' ! ' I . I 8 8 8 " t 8 0
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Tsunami recommend using 99.999% pur
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Tsunami Mode Locking the Laser 6. W
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Tsunami - - - 710 nrn - - 790 nrn -
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4 Tsunami Beam % 2 mm (0.08 in.) Pr
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Tsunami Table 7-1: Bi-fi Selection
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I I1 ! I : I I I ill 8 I !Il! I1I l
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Lok-to-Clock Electronics LEVEL cont
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Lok-to-Clock Electronics AOM M5f-4
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Lok-to-Clock Electronics Installing
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I I1 I i l l I iil 111 ,111 Ill ,il
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P Lok-to-Clock Electronics Model 20
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I 1 1 I 1~~~ 11 I 1 1 1 1 .III :ill
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Lok-to-Clock Electronics Figure 8-9
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I I1 I l I 1 bll Lok-to-Clock Elect
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Tsunami "Clean" is a relative descr
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Tsunami Figure 9-1: Drop and Drag M
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Tsunami With the exception of pump
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Tsunami On rare occasions, the lowe
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Tsunami 8. Open the pump laser shut
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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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Tsunami - Beckman Institute Laser Resource Center

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