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Pyroelectric formation of planar waveguide structures in lithium niobate by laser beam with the wavelength of 532 nm

A. S. Perin, V. Y. Ryabchenok, E.A. Dmitriev, V. A. Kradko, S. B. Kozlov, E.A. Berezina, V.M. Shandarov

Memoirs of the Faculty of Physics 2016. N 5.

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Annotation

Formation of one-dimensional planar waveguides and couples of such waveguides within a bulk of undoped lithium niobate has been experimentally demonstarated. Waveguide structures with a channel size of 22 μm have been formed by the bright spatial solitons obtained at the compensation of the diffraction divergence of light beams in the crystal due to the contribution of the pyroelectric effect into the nonlinear response. The light wavelength was 532 nm and the optical power was ranged from 0.5mW to 1mW in experiments. The total compensation of the diffraction divergence at uniform heating of the crystal sample to the temperature from 75 ◦C.

PACS:
42.25.Fx Diffraction and scattering
42.65.Hw Phase conjugation; photorefractive and Kerr effects
Rissian citation:
А. С. Перин, В.Ю. Рябчёнок, Е.А. Дмитриев, В.А. Крадько, С. Б. Козлов, Е.А. Березина, В. М. Шандаров.
Пироэлектрическое формирование планарных волноводных структур в ниобате лития лазерным излучением с длиной волны 532 нм.
Учен. зап. физ. фак-та Моск. ун-та. 2016. № 5. 165307.
Authors
A. S. Perin, V. Y. Ryabchenok, E.A. Dmitriev, V. A. Kradko, S. B. Kozlov, E.A. Berezina, V.M. Shandarov
Department of Microwave and Quantum Radio Engineering, Faculty of Engineering, Tomsk State University of Control Systems and Radioelectronics, Tomsk 634050, Russia
Issue 5, 2016

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