Spectral characteristics of non-collinear acousto-optic tunable filters |
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Authors: | G Georgiev L Konstantinov |
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Institution: | Central Laboratory of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Rakovski Str. 92, 1000-Sofia, Bulgaria |
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Abstract: | The bandpass width and the diffraction efficiency of a non-collinear acousto-optic tunable filter are considered as functions of the optical wavelength for fixed values of the direction of propagation of the optic wave, the length of the acousto-optic interaction and the power density of the controlling RF-signal. A comparison between the calculated and the experimentally measured spectral dependencies is discussed and illustrated from the viewpoint of practical application for a TeO2 filter. It is shown that in the approximation used, satisfactory agreement can be achieved between the experimental and calculated dependencies. |
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Keywords: | acousto-optics acousto-optic tunable filters spectral filters |
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