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Information × Registration Number 0200U003127, 0198U002333 , R & D reports Title Investigations of laser formation process of high frequency periodic structures on photosensitive ambiences as elements of optoelectronic devices. popup.stage_title Head Bobyts'kyj Ya.V., Registration Date 21-03-2000 Organization Lviv Polytechnic State University popup.description2 Theoretical aspects of etching of GaAs in the liquid ambience are considered. Offered installation of etching of high frequency gratings with the vertical placement of sample of GaAs. Etching is conducted using He-Ne laser with the source power 50 mW. Holographic method of formation of high frequency gratings on the cladding of optical fibre, using photopolymers, is offered. Corresponding installation is designed. Calculation of gratings profile on semiconductor surfaces on power distribution of laser irradiation on diffraction orders is conduct. Is created model of light propagation in the optical single mode fibre Bragg gratings on the core of fibre, on the cladding of fibre, as well as model for corrugated borders between the core and cladding of fibre, which changes along sinusoidal equation, and corrugated borders between the cladding and external ambience. Using method of bound waves is designed theory of light diffraction on volume periodic structures. Results of theories well comply with result s of the experiment. Product Description popup.authors popup.nrat_date 2020-04-03 Close