The FSQ-80-5-BC from Brimrose Corporation is an SiO2 Acousto-Optic Q-Switch that operates at a wavelength of 1060 nm. It has an operating frequency of 80 MHz and active aperture of 1 mm. This linearly polarised AOQS has a digital modulation bandwidth of 6.5 MHz and an optical transmission of 99.5%. It has a maximum diffraction efficiency of 25% and rise time of 85 ns. This AOQS has an acoustic velocity of 5.96 x 103 m/s and a wavefront distortion of lambda/10.
The FSQ-80-5-BC features analog light intensity modulation, digital on/off switching, and optional water or thermoelectric cooling. It has a separation angle of 14 mrad, V.S.W.R. of 2.1:1, and an input impedance of 50 Ohms. This AOQS is ideal for laser marking, cutting, pulsed holography, lithography, 3D microfabrication, medical (surgery), optical data storage, and OEM designs applications.