Acoustooptic resonance in deep-etched GaAs-AlGaAs electrooptic modulators |
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| Authors: | Watson C.D. Poirier M. Heaton J.M. Lewis M. Boudreau M. |
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| Affiliation: | Bookham Technol., Ottawa, Ont., Canada; |
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| Abstract: | Deep-etched GaAs-AlGaAs waveguide modulators are shown to generate acoustic waves that can cause elastooptic anomalies in the modulator response. The theory of acoustooptic interactions in linear electrooptic modulators is described and a one-dimensional (1-D) approximation of a deep-etched GaAs-AlGaAs waveguide modulator is developed. The 1-D theory is shown to predict the acoustooptic resonance phenomena that is seen in experimental devices. |
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