Abstract

We propose a two-wave mixing interaction between a self-bent pump beam and a signal beam in a BaTiO₃ crystal. This new configuration exhibits two-wave mixing gain values as high as G_sat = 1.5 × 10⁵, corresponding to an enhancement of 40× in comparison with a conventional two-wave mixing geometry. Application to coherent image amplification with such a high gain combined with a very good signal-to-noise ratio is demonstrated.

© 1995 Optical Society of America

Very-high-gain single-pass two-beam coupling in blue Rh:BaTiO₃

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