Refractive index changes induced in the surface layer of a lithium niobate crystal during the channel waveguide formation for optoelectronic devices

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Authors: Bezpalyy A. D., Bykov V. I., Mandel A. E., Krakovskiy V. A.

Annotation: This article presents the results of experimental studies of refractive index changes induced point-by-point in the surfacedoped lithium niobate crystal during the formation of channel optical waveguide structures. Refractive index changes were obtained by a focused laser beam during the crystal surface exposure and investigated using a Jamin interferometer.

Keywords: optical inducing, point-by-point exposure, lithium niobate, photorefractive effect, channel waveguides