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

22 June 1987

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 50 (25) , 1794-1796
https://doi.org/10.1063/1.97699

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 γ_diff on the transmitted signal beam. The dependence of γ_diff versus the duty cycle of the modulated signal is analyzed. Amplification and regeneration of periodic, or random sequences of information bits are experimentally demonstrated.

Keywords

This publication has 10 references indexed in Scilit:

Moving grating during erasure in photorefractive Bi ₁₂ SiO ₂₀ crystals
Electronics Letters, 1986
Simplified Band Transport Model Of The Photorefractive Effect
Optical Engineering, 1986
Bias-free time-integrating optical correlator using a photorefractive crystal
Applied Optics, 1985
Wave Mixing In Photorefractive Bismuth Silicon Oxide Crystals And Its Applications
Optical Engineering, 1985
Two-beam coupling in photorefractive Bi12SiO20 crystals with moving grating: Theory and experiments
Journal of Applied Physics, 1985
Photorefractive Crystals of the Bi 12 SiO 20 Type for Interferometry, Wavefront Conjugation and Processing of Non-stationary Images
Optica Acta: International Journal of Optics, 1984
Spatial frequency dependence of the energy transfer in two-wave mixing experiments with BSO crystals
Optics Communications, 1983
Optimal Properties Of Photorefractive Materials For Optical Data Processing
Optical Engineering, 1983
Diffraction of Coupled Waves and Determination of Phase Mismatch Between Holographic Grating and Fringe Pattern
Optica Acta: International Journal of Optics, 1979
Holographic storage in electrooptic crystals. i. steady state
Ferroelectrics, 1978