Q-Switches

Acousto-optic Q-switches are usually intracavity devices with high transmission and high damaged threshold. They equip most Q-switched lasers providing repetition frequencies up t0 hundreds of KHz.

A Q-switch is a special modulator which introduces high repetition rate losses inside a laser cavity (typ 1 to 100 KHz). They are designed for minimum insertion loss and to be able to withstand very high laser powers. In normal use an RF signal is applied to diffract a portion of the laser cavity flux out of the cavity. This increases the cavity losses and prevents from oscillation. When the RF signal is switched off, the cavity losses decrease rapidly and an intense laser pulse is emitted.

Our models of Q-Switches

Aperture/mm²
Carrier frequency (MHz)
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Model
Carrier frequency (MHz)
Aperture/mm²
Optional Length (mm)
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40.68
1.5 x 2
32
Material
Quartz
Polarisation
Linear
Losses (%)
> 80
Associated RF driver
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80
1.2 x 2
32
Material
Quartz
Polarisation
Linear
Losses (%)
> 80
Associated RF driver
PDF