St. Petersburg Polytechnic University Journal: Physics and Mathematics Научно-технические ведомости СПбГПУ. Физико-математические науки 2304-9782, 2618-8686, 2405-7223 17 Multibeam control modulation in the photorefractive quadratic electrooptic materials Многопучковая управляемая модуляция в фоторефрактивных средах с квадратичным электрооптическим эффектом Kniazkov Anatoly akniazkov@mail.ru 18 10 2010 3 104 98 104

The investigation results of the multibeam control modulation in the photorefractive quadratic EO materials by means of changes in the diffraction gratings force has been shown. It is significant that two- and multibeam photorefractive modulators have great sensitivity and linearity advantage over one beam modulation.

 multibeam diffraction modulation photorefractive materials quadratic eo effect control force diffraction gratings