1 May 1987 Optical Information Processing With The Double Phase Conjugate Mirror
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The operation of the double phase conjugate mirror (DPCM) is described. It can be regarded as a bidirectional spatial light modulator and controllable filter. Two independent image-bearing beams that may be derived from different lasers exchange their spatial information as they are coupled into each other in a photorefractive crystal. The,DPCM is also shown to be an optical thresholder and spatial filtering device, displaying edge enhancement. We propose the use of a resonator with two facing DPCMs to implement iterative image processing algorithms.
Shmuel Sternklar, Shimon Weiss, Baruch Fischer, "Optical Information Processing With The Double Phase Conjugate Mirror," Optical Engineering 26(5), 265423 (1 May 1987). https://doi.org/10.1117/12.7974092 . Submission:

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