Two-wave mixing has been observed in Cr-doped semi-insulating GaAs using a compact
Nd: YLF diode-pumped solid-state CW laser system at 1.31 microns. Significant …

The photorefractive effect is of considerable interest for parallel optical processing
operations. Semiconductor materials have received attention because of their potentially fast …

Enhanced two-beam mixing amplification at a wavelength of 1.06 μm obtained by using
sinusoidal electrical fields at 7.7 MHz is reported. The peak measured gains are comparable …

We report high-reflectivity four-wave mixing in photorefractive GaAs: Cr crystals at 1.06 μm
using a nearly degenerate interaction with an externally applied dc electric field (moving …

The photorefractive effect is an extremely versatile nonlinear mechanism for parallel optical
processing. Applications such as image amplification, real-time interferometry, convolution …

Sensitive and low power generation of phase conjugate beams in the near IR became
possible after the discovery of the photorefractive effect in GaAs and other compound …

Three image processing experiments were performed by degenerate four-wave mixing in
photorefractive GaAs. The experiments were imaging by phase conjugation, edge …

We report the first observation offorward degenerate four-wave mixing (DFWM) in
roomtemperature GaAs/GaAIAs multiple quantum well structures near the exciton …

The photorefractive effect has been observed for the first time in semi-insulating InPe: Fe
and Ga~ sCr. Thes~ m~ terials are sensitive and versatile recording media for high bit rate …

The light of a master laser and two semiconductor laser amplifiers was coupled coherently
by means of a photorefractive InP: Fe crystal. A multibeam coupling arrangement, in which …