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Acousto Optics


Acousto optic devices create an optical grating in a crystal by means of acoustic waves and can thus be used to change direction, frequency and intensity of a laser beam. The products available from AMS Technologies feature very high switching speed and excellent diffractive efficiency and thus maintain laser performance. Fiber-coupled devices are also available.

Our selection of acousto optic devices allows the user to address several specific laser applications. An acousto optic modulator (AOM) can be used to slowly or rapidly modulate the intensity of a laser beam – for example, a variation of this component is specifically designed for use as a Q-switch inside a laser cavity. The frequency of laser light can be shifted in the RF range through the use of an acousto optic frequency shifter (AOFS).

Conversely, an AO tunable filter can be used for frequency (wavelength) selection, or in some cases even a selection of multiple discrete frequencies. Lastly, scanning of a laser beam over a range of angles or precise steering tasks can be accomplished via the use of an AO deflector.