TITLE

# Amplification of high bandwidth signals through two-wave mixing in photorefractive Bi12SiO20 crystals

AUTHOR(S)
de Montchenault, G. Hamel; Loiseaux, B.; Huignard, J. P.
PUB. DATE
June 1987
SOURCE
Applied Physics Letters;6/22/1987, Vol. 50 Issue 25, p1794
SOURCE TYPE
DOC. TYPE
Article
ABSTRACT
We report a new nearly degenerate two-wave mixing interaction in photorefractive Bi12SiO20 crystals in which the signal beam is time modulated at high frequency. The beam coupling phenomena and the time integration properties of the crystal allow us to achieve a differential gain Î³diff on the transmitted signal beam. The dependence of Î³diff versus the duty cycle of the modulated signal is analyzed. Amplification and regeneration of periodic, or random sequences of information bits are experimentally demonstrated.
ACCESSION #
9823350

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