Abstract
After recalling the principal results of the theory of two-wave mixing gain enhancement in photorefractive InP:Fe crystals under a dc field, we report on experiments performed with several samples manufactured at CNET. For the first time, we believe, a maximum gain of 11.4 cm−1 has been obtained under an applied dc field of 10 kV/cm in a thermally stablized crystal (T = 290 K) at λ = 1.06 μm. In spite of a decrease in the factor n3reff/λ, high gains (Γ ≥ 5 cm−1) have been achieved at λ = 1.32 μm in thick crystals. These experimental results are in good agreement with theoretical predictions.
© 1990 Optical Society of America
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