Fabrication of micro-Bragg reflectors by guided beams in photorefractive Cu:H:LiNbO3:Mg waveguides

Abstract

High photorefractive response is obtained in the photorefractive LiNbO3 waveguides fabricated by the combined proton and copper exchange. It has been shown, that holographic recording with guided beams can be more effectively used, comparatively to recording with external beams, for fabrication of micro-Bragg reflectors in the photorefactive LiNbO3 waveguides.