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Amplification of optical signals in Bi12TiO20 crystal by photorefractive surface waves

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Abstract

We have demonstrated experimentally beam amplification by coupling between the signal beam and the photorefractive surfaces wave in Bi12TiO20 crystal. A gain of 16,000 has been measured, with an output signal-to-noise ratio of >20 for weak input signals.

© 1996 Optical Society of America

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