20 September 1999 Flow of signals via a photorefractive crystal
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Using the self-pumped phase conjugation with a photorefractive BaTiO3 crystal, we propose a device which changes the flow direction of signals. Two beams of light involve in the device and signals are transferred between them. They share the total-internal-reflection (TIR) loop in the crystal. The transferred pattern can be a positive replica of the original pattern or a negative replica of it.
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OuYang Yueh, OuYang Yueh, Tsair-Chun Liang, Tsair-Chun Liang, Nai-Jen Cheng, Nai-Jen Cheng, Hsiao-Yi Lee, Hsiao-Yi Lee, } "Flow of signals via a photorefractive crystal", Proc. SPIE 3801, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications V, (20 September 1999); doi: 10.1117/12.363947; https://doi.org/10.1117/12.363947

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