Acousto-Optic Tunable Filter AOTF

Acousto-Optic Tunable Filter AOTF Operation Principle The basic operation principle is explained in the following. If a sinusoidal (fixed-frequency) RF input signal is applied to the modulator, diffraction is possible only in a narrow range of optical frequencies, where a phase matching condition involving both optical and acoustic waves is fulfilled. Looking at the diffracted […]

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