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Wavelength dependence of high-performance AlGaAs/GaAs depletion-edge-translation waveguide phase modulators

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Abstract

Single-mode phase modulators with high efficiency are important for coherent optical communications systems operating in the 1.0-1.6-μm wavelength range. We report on the characteristics of a very efficient AlGaAs/GaAs channel waveguide phase modulator which uses a combination of reversebiased effects (including the plasma effect, electrooptic effect, and dispersion characteristics due to absorption edge shift) that both provide efficient phase modulation and have the potential of being very fast, limited only by the RC.1

© 1987 Optical Society of America

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