Acousto-optic Q-switch (AOQS) works within the laser cavity to generate short-pulses, and high-peak-power lasers by actively controlling the Q-factor of the cavity. AOQS is usually used to modulate the loss of zero-order beams. When the RF drive of AOQS is turned on, the zero-order light cannot form an oscillation of laser in the cavity due to diffraction, and the cavity loss increases and prevents laser output. When the RF drive is turned off for a short time, the optical power accumulated in the laser cavity is emitted in the form of a pulse to generate a pulsed laser. The process can be repeated at rates in excess of 100KHz. AOQS can operate either in the Bragg state, like AOM (Acousto-optic modulator) with a single diffracting beam, or in the Raman-Nath state with multiple diffracting beams.

SIMTRUM offers a complete solution oriented to polarized (layout) or non-polarized lasers and can be adapted to include lamp-pumped lasers as well as LD-pumped lasers. Our AOQS product wavelength range from ultraviolet to far infrared, a diameter of up to 12 mm. AOQS selects AO materials with excellent quality (fused quartz, quartz crystal, Ge crystal, etc.), which can be designed into shear and longitudinal wave mode according to to needs. High-quality optical polishing, anti-reflective coatings with low reflection and high damage, reliable welding techniques, and novel acoustic management and optical-mechanical design techniques enable excellent thermal management, maintaining excellent beam quality and high transmittance.

SIMTRUM can provide AOQS-matched series of RF drivers, you can choose the corresponding RF driver according to the product specifications.

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