Energy Transfer Experiments With Photorefractive Inp:Fe Crystals Under Dc Fields : Two Gain Enhancement Methods

C. Ozkul; G. Picoli; P. Gravey; J. Le Rouzic

doi:10.1117/12.962254

5 February 1990 Energy Transfer Experiments With Photorefractive Inp:Fe Crystals Under Dc Fields : Two Gain Enhancement Methods

C. Ozkul, G. Picoli, P. Gravey, J. Le Rouzic

Author Affiliations +

Proceedings Volume 1151, Optical Information Processing Systems and Architectures; (1990) https://doi.org/10.1117/12.962254
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

The exponential gain of two-beam coupling in InP:Fe crystals under dc fields is a function of the pump beam intensity at a given temperature. We propose two methods in order to extend the sample volume working under optimum conditions. The first method is based on a negative thermal gradient and the second uses an auxiliary incoherent beam. Theoretical simulations predict an integrated gain of 15cm^-1 and 10cm^-1 respectively (for λ=1.06pm, λ=5μm and 0_° =10kV/cm) in thick crystals (L=5mm) . Preliminary experimental results confirm that high gain performances can be achieved by using these methods.

Citation Download Citation

C. Ozkul, G. Picoli, P. Gravey, and J. Le Rouzic "Energy Transfer Experiments With Photorefractive Inp:Fe Crystals Under Dc Fields : Two Gain Enhancement Methods", Proc. SPIE 1151, Optical Information Processing Systems and Architectures, (5 February 1990); https://doi.org/10.1117/12.962254

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