Abstract

The dependence of a two-beam coupling gain on the grating period in Fe-doped InP is characterized. I measure gains as large as 4 cm−1 at 1.06 μm for an applied field of 8 kV cm−1 and for a grating period between 3 and 12 μm. Moreover, there is gain saturation above a reference-beam intensity of 40 mW cm−2 and response times from 1 to 30 msec depending on the applied field.

© 1988 Optical Society of America

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