Acousto-Optic. Bragg Diffraction In Ion-Exchanged Glass Waveguides

S. Ebner; A. Brandenburg; W. Konz; G. Sulz; L. Unger; Ch. Vogel

doi:10.1117/12.949432

5 April 1989 Acousto-Optic. Bragg Diffraction In Ion-Exchanged Glass Waveguides

S. Ebner, A. Brandenburg, W. Konz, G. Sulz, L. Unger, Ch. Vogel

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.

Citation Download Citation

S. Ebner, A. Brandenburg, W. Konz, G. Sulz, L. Unger, and Ch. Vogel "Acousto-Optic. Bragg Diffraction In Ion-Exchanged Glass Waveguides", Proc. SPIE 1014, Micro-Optics, (5 April 1989); https://doi.org/10.1117/12.949432

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