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An optical electroabsorption waveguide modulator is described based on the quantum-confined Stark effect in an InGaAs/InP multiple quantum well waveguide. The optical modulator has a high on/off ratio (47:1) with very low insertion loss (2.9 dB) and a 3-dB modulation bandwidth of 3.0 GHz at 0.1 mW optical input power.
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Koren et al. (1987) studied this question.
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