Published date: Apr 25 2018

Journal Title: KnE Energy

Issue title: VII International Conference on Photonics and Information Optics (PhIO)

Pages: 259–266

DOI: 10.18502/ken.v3i3.2036

V M Kotovvmk6054@mail.ru

G N Shkerdin

S V Averin

A method for the optical beam production with the rotating polarization vector based on the interference of two beams with the circular polarizations is proposed. The frequency shift between beams is implemented by means of acousto-optic (AO) diffraction. The method is used for the amplitude light modulation with the frequency nf where f is acoustic frequency and n is integer. AO modulators are fabricated from paratellurite crystal. Modulators allow modulating the optical radiation with wavelength of 0.63 mcm at the quadruple frequency of the acoustic wave. The modulation frequency achieves 180 MHz.

Keywords: acousto-optic diffraction, Bragg regime, frequency shift, rotating polarization vector.

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