Grating-encoded multichannel photorefractive incoherent-to-coherent optical conversion.
A dynamic multichannel incoherent-to-coherent optical converter based on the photorefractive effect of SBN:Ce is described. A number of grating-encoded input images, illuminated by incoherent light, are projected onto the crystal to yield photoinduced phase gratings. Coherent positive replicas of these images are simultaneously reconstructed by a coherent read beam. A simple theoretical description of this converter and corresponding experimental results are presented.
Ma
J
J
Liu
L
L
Wu
S
S
Wang
Z
Z
Xu
L
L