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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Generation of Four Self-Pumped Phase-Conjugated Waves Using Single Photorefractive Crystal
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Generation of Four Self-Pumped Phase-Conjugated Waves Using Single Photorefractive Crystal

机译：使用单个光折变晶体产生四个自泵浦的相位共轭波

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摘要

A method of generating self-pumped phase-conjugated waves from four signal beams transporting different information using a single crystal of barium titanate is presented. With one pair of signal beams directed on the (100) face of the crystal and the other pair directed on the opposite (100) face, phase-conjugated images were produced according to the relative power of the two beam pairs. Images were produced even when the beams in each pair fully overlapped on the incident crystal face. At high power ratios (e.g., 1 : 5), no images of the lower-power beams were produced. The absence of fanning loops in the crystal for the lower-power beams indicates that the information was erased due to scattering of the higher-power beams and/or the interaction between the beams in the crystal. The generation of phase-conjugated waves could therefore be controlled selectively by adjusting the relative beam power of the input signal beams.
机译：提出了一种使用钛酸钡单晶从传输不同信息的四个信号束生成自泵浦相位共轭波的方法。一对信号束对准晶体的（100）面，另一对对准相对的（100）面，根据这两个束对的相对功率产生相位共轭图像。即使每对中的光束在入射的晶体面上完全重叠，也会产生图像。在高功率比（例如1∶5）下，没有产生低功率光束的图像。晶体中没有针对低功率光束的扇形环，这表明信息由于高功率光束的散射和/或晶体中光束之间的相互作用而被擦除。因此，可以通过调节输入信号光束的相对光束功率来选择性地控制相位共轭波的产生。

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