We demonstrate experimentally a setup with which a two-dimensional picture can be transmitted from one plane to another at a signal request of the latter plane and the original picture continues to propagate unhindered along its original direction to the next stage. The setup makes use of photorefractive four-wave mixing and the self-pumped phase conjugation for its operation. Some means for increasing the contrast of the final transmitted image have been discussed.
© 2000 Optical Society of America
(070.5040) Fourier optics and signal processing : Phase conjugation
(190.5040) Nonlinear optics : Phase conjugation
(190.5330) Nonlinear optics : Photorefractive optics
(190.7070) Nonlinear optics : Two-wave mixing
(200.4650) Optics in computing : Optical interconnects
Hsiao Yi Lee, Tzu Chiang Chen, and Hon Fai Yau, "Coherent Optical Signal Transferring on Request by use of a BaTiO3 Crystal," Appl. Opt. 39, 6656-6662 (2000)