The FS1001-TS020-030-633 from ModuOptik is a Tellurium Dioxide (TeO2) Acousto-Optic Frequency Shifter (AOFS) that operates at a wavelength of 633 nm. It has a center frequency of 20 MHz and transmission above 97%. This AOFS has linear, horizontal to base, and vertical to base polarizations with a separation angle of 20.1 mrad. It has an active aperture of 3 mm and diffraction efficiency of over 85%. This AOFS has a maximum RF power of 2 W and an input impedance of 50 ohms.
The FS1001-TS020-030-633 has a Voltage Standing Wave Ratio (VSWR) of less than 2.5:1 and supports an SMA-F RF connector. It has a shear acoustic mode and is available in an Aluminium alloy 6063 package that measures 40.5 mm x 25.4 mm x 16 mm. This AOFS is ideal for laser heterodyne interference, laser Doppler velocity measurement, laser Doppler vibration measurement, and laser wind Radar applications.
