摘要
A mutually pumped phase conjugator with a novel photorefractive crystal of copper-doped potassium sodium strontium barium niobate is reported,in which both incoherent beams are incident upon the negative c face and they travel in geometric paths similar to the outline of two arches.The maximum reflectivity attains 21%.The tolerance of the output to both incident angles and positions is assessed.No apparent cross talk is observed.A cross-readout mechanism is also used to explain phase-conjugate reflectivity production.It is verified that the configuration can be realized easily for a crystal with two longer a sides.
基金
Supported by the Grant for a Key Research Project in Climbing Program from the State Science and Technology Commission of China.
