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This article is cited in 9 scientific papers (total in 9 papers)
Light modulation
Acousto-optic gyrotropic-crystal-based modulator with a rotating polarisation vector
V. M. Kotov, S. V. Averin, E. V. Kotov, A. I. Voronko, S. A. Tikhomirov Kotelnikov Institute of Radioengineering and Electronics, Fryazino Branch, Russian Academy of Sciences
Abstract:
We study the influence of ellipticity of gyrotropic-crystal eigenwaves on the output characteristics of an acousto-optic (AO) modulator based on the interferometer scheme. The schemes of AO modulators are considered, which provide the polarisation vector rotation frequency fn/2, where f is the frequency of the acoustic wave, and n is the integer. Preference is given to the scheme combining cascade and polarisation-independent diffraction. An experimental layout of the AO modulator operating at f = 44.5 MHz is described, the modulation frequency of the output laser light intensity being 89 MHz. The frequency of the electrical signal from the photodetector is equal to 179.5 MHz.
Keywords:
acousto-optic diffraction, Bragg regime, frequency shift, amplitude modulation.
Received: 09.08.2016 Revised: 03.11.2016
Citation:
V. M. Kotov, S. V. Averin, E. V. Kotov, A. I. Voronko, S. A. Tikhomirov, “Acousto-optic gyrotropic-crystal-based modulator with a rotating polarisation vector”, Kvantovaya Elektronika, 47:2 (2017), 135–139 [Quantum Electron., 47:2 (2017), 135–139]
Linking options:
https://www.mathnet.ru/eng/qe16551 https://www.mathnet.ru/eng/qe/v47/i2/p135
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Abstract page: | 282 | Full-text PDF : | 105 | References: | 34 | First page: | 9 |
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