Tsunami - Beckman Institute Laser Resource Center

Chapter 10
Options and Accessories
Spectra-Physics Lasers provides options and accessories to enhance and
expand the performance and flexibility of your Tsunami laser. If you need
additional information on these items, contact your Spectra-Physics Lasers
sales representative.
Options
Ultrashort (< 50 fs) Pulse Option
Broad Femtosecond Pulse Option
Broad Picosecond Pulse Option
All Tsunami systems with a serial number suffix "G" can be upgraded to
provide output pulses of < 50 fs. The ultrashort pulse option is available
only for the standard wavelength region with a specification of < 50 fs
and > 1.0 W at 790 nrn for a large frame pump source. The upgrade part
number is 0449-1050s.
The broad fs pulse option provides 150 fs to 1 ps output pulse capability.
The option comprises special GTIs that are used for dispersion compensation
in conjunction with the prism sequence.
The broad ps pulse option delivers transform limited 10 to 80 ps pulses.
Power is specified at > 2 W at 30 and 60 ps for a large frame ion laser
pump source. The broad pulse option uses special GTIs and a 2 or 3-plate
birefringent filter.
76 MHz Option
The Tsunami cavity can optionally operate at 76 to 83 MHz in addition to
the standard 82 MHz repetition rate. This is a factory option. Contact
your Spectra-Physics Lasers service representative for more information.
Lok-to-Clock " System
The Lok-to-Clock" system comprises the Model 3930 electronics module,
a motor-driven high reflector in the Tsunami laser, and a PZT-driven
mirror at M4. Using a phase-locked loop, the pulse train of the Tsunami
laser is precisely synchronized to a reference source. An internal 80 MHz
reference oscillator is provided with the system. Alternatively, an external
rf source or another laser can be used as the reference source. If another
mode-locked laser is used as the reference source, then an external photo-