Coherent image amplification by two-wave coupling in a crystal of photorefractive BaTiO3 is analyzed. This amplifier is optimized with respect to such operational characteristics as gain versus amplified image quality and space-bandwidth product. Experimental results that demon-strate coherent image amplification of 4000, space-bandwidth product of 106, and gray-level dynamic range of greater than 100 are presented.
Sing H. Lee,
"Optimal Coherent Image Amplification By Two-Wave Coupling In Photorefractive BaTiO3," Optical Engineering 25(2), 252228 (1 February 1986). https://doi.org/10.1117/12.7973810