Category : Communication equipment (transmission, RF, test and control instruments) > RF communication equipment

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An AOTF is a solid-state, electronically tunable bandpass filter, which uses the acousto-optic interaction inside an anisotropic medium. These filters can be used with multi-lines sources (mixed gas lasers, Laser diodes...) or with broadband light sources (Xenon, Halogen lamps...). They allow to select and transmit a single wavelength from the incoming light.

The main advantage of this technique is the total absence of any moving part which lead sto a reliable, stable and fast technique for wavelength tuning. The RF frequency applied on the AOTF transducer controls the transmitted (filtered in 1st order) wavelength. A complete spectrum analysis can be done by varying the frequency corresponding to the wavelength range. The RF amplitude level applied on the transducer allows to adjust the transmitted (filtered) light intensity level. This is a unique feature that can provide the AOTF. It is fast (several µs), accurate and procures high extinction ratio.

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- Acousto-optic modulators used to control laser beam intensity
- Frequency shifters

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- Copernicus GPS Receiver
- Remote control receiver
- GSM cellular alarm and remote control system
- Radio modem 869MHZ
- Frequency shifters
- SMP dual-channel tracking receiver

List of all articles in this sub-category RF communication equipment

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