Abstract

We investigate wavelength and power dependence of optically controlled transmission modulation based on dynamic band filling in InGaAsP (λg = 1.3 μm). A maximum modulation depth of 42% is observed at a 1280-nm wavelength for 5-mW control power. The modulation depth slightly decreases with increasing test power. A theoretical analysis based on carrier rate equations and direct electronic transitions between parabolic bands provides a good description of the experiments.

© 1988 Optical Society of America

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