Accession Number : ADP006679
Title : Integrated SAW-AO Optical Switch on Si,
Corporate Author : KYOTO UNIV (JAPAN)
Personal Author(s) : Shiosaki, Tadashi ; Kitamura, Naoki ; Kawabata, Akira
Report Date : 05 APR 1991
Pagination or Media Count : 9
Abstract : The developments in the integration of the SAW acousto-optic Bragg deflector of guided optical waves in the ZnO thin film on a Si substrate and Schottky diode photodetectors orl-the same Si substrate are reported. Thin film lens has been fabricated by making use of a gradual film thickness change, the refractive index dispersion of the fundamental mode on the film thickness, and the mode cut-off property of the higher order modes in the area of the concave shaped converging lens of the ZnO film. The guided optical waves SAW-Bragg deflected, mode selected and lens focused are detected by-the Schottky diode photo-detector Incorporated at the boundary between the ZnO film wave guide and the Si substrate. A couple of detectors are located one for deflected and the other for undeflected waves.
Descriptors : *ACOUSTOOPTICS, BOUNDARIES, DEFLECTORS, DETECTORS, DIODES, DISPERSIONS, FILMS, INDEXES, INTEGRATION, OPTICS, PHOTODETECTORS, REFRACTIVE INDEX, SUBSTRATES, THICKNESS, THIN FILMS, JAPAN, BRAGG ANGLE, SURFACE ACOUSTIC WAVE DEVICES, ZINC OXIDES, OPTICAL WAVEGUIDES.
Subject Categories : Line, Surface and Bulk Acoustic Wave Devices
Acoustooptic and Optoacoustic Devices
Distribution Statement : APPROVED FOR PUBLIC RELEASE