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Acoustooptic resonance in deep-etched GaAs-AlGaAs electrooptic modulators

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5 Author(s)
Watson, C.D. ; Bookham Technol., Ottawa, Ont., Canada ; Poirier, M. ; Heaton, J.M. ; Lewis, M.
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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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Lightwave Technology, Journal of  (Volume:22 ,  Issue: 6 )