5 April 1989 Acousto-Optic. Bragg Diffraction In Ion-Exchanged Glass Waveguides
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Proceedings Volume 1014, Micro-Optics; (1989) https://doi.org/10.1117/12.949432
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany
Abstract
An integrated-optic Bragg-cell based on diffraction of light by a surface acoustic wave (SAW) was fabricated on glass with a piezoelectric ZnO-layer. The ZnO-film was deposited by RF-magnetron sputtering. To generate a SAW an interdigital electrode array is needed, which is positioned between the glass and the ZnO-film. Such a ZnO-transducer has been tested by the standard RF-measurment techniques for+ SAW filters. The optical waveguides were produced by thermal K -ion exchange in BK7-glass. A special waveguide structure with two intersecting waveguides was used. For increasing the interaction length in the crossing area the monomode waveguides were tapered adiabatically up to a width of 50μm. The diffraction efficiency of such a Bragg-cell in glass was measured to be about 4%-5% at an RF input power of 1W.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Ebner, S. Ebner, A. Brandenburg, A. Brandenburg, W. Konz, W. Konz, G. Sulz, G. Sulz, L. Unger, L. Unger, Ch. Vogel, Ch. Vogel, "Acousto-Optic. Bragg Diffraction In Ion-Exchanged Glass Waveguides", Proc. SPIE 1014, Micro-Optics, (5 April 1989); doi: 10.1117/12.949432; https://doi.org/10.1117/12.949432
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