The coupling effect between phase and intensity in photorefractive two-wave mixing in a Bi12SiO20 crystal is demonstrated. By using interference fringe-shifting techniques that are executed by a Mach-Zehnder interferometer, an optical parallel logic operation system that is based on the coupling effect is implemented.
© 1992 Optical Society of America
Haiying Xu, Yang Yuan, Kebin Xu, and Yueguang Lu, "Real-time parallel optical logic operation using photorefractive two-wave mixing and fringe-shifting techniques," Appl. Opt. 31, 1769-1773 (1992)