Q-Switches
Q-switches are intracavity devices used to generate very high peak power, short duration laser pulses. These are typically loss modulators operating on the zero order beam. The goal of a Q-switch is to diffract as much power from the zero order as possible to increase the cavity loss and extinguish the laser output. When the RF drive to the Q-switch is momentarily turned off, the optical power built up in the laser is emitted as a short pulse. The process may be repeated at rates in excess of 100KHz. Depending on the frequency and interaction length, AO Q-switches either operate in the Bragg regime, just like an AOM, with predominately a single diffracted beam or in the Raman-Nath regime with multiple diffracted beams.
Conduction Cooled | |||||||
Model | Wavelength | Centre Frequency (MHz) | Material | Active Aperture (mm) | Max Power (W) | Damage Thresh (MW/cm^2) | Driver |
Q1420-T80L-1 | 1um | 80 | TeO2 | 1 | 3 | >200 | Here |
Q1162-SFxxL-1 | 1um | 41/80 | SF10 | 1 | 6 | >300 | Here |
M1377-aQ41L-1_2 | 0.7-1um | 41 | Quartz | 1.0 to 2.0 | 15 | >500 | Here |
M1377-aQ80L-1_2 | 0.7-1um | 80 | Quartz | 1.0 to 2.0 | 15 | >500 | Here |
Q1392-aQ80L-0p8 | 0.64 - 0.72um | 80 | Quartz | 0.8 | 3 | >500 | Here |
Q1405-aQ80L-0p7 | 1um | 80 | Quartz | 1 | 15 | >500 | Here |
Water Cooled | |||||||
Model | Wavelength | Centre Frequency (MHz) | Material | Active Aperture (H, mm) | Max Power (W) | Damage Thresh (MW/cm^2) | Driver |
Q1062-FSxxL-H | 1um | 24/ 27 | Fused Silica | 1.5 to 6.0 | 60 | >500 | Here |
Q1062-FSxxS-H | 1um | 24/ 27 | F.Silica (Shear) | 1.5 to 5.5 | 60 | >500 | Here |
Q1083-FSxxL-H | 1um | 24/ 27 / 41 | Fused Silica | 1.5 to 6.0 | 60 | >500 | Here |
Q1083-FSxxS-H | 1um | 24/ 27 / 41 | F.Silica (Shear) | 1.5 to 5.5 | 60 | >500 | Here |
Q1337-G13L-3 | 10.6um | 13.56 | Ge | 3 | 50 | >50 | Here |