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光折变晶体被两束完全不相干的光束所泵浦是互泵浦位相共轭镜的一大特点，实验上实现各种构型的互泵浦位相共轭镜时，总是力图避免两入射光相干．如果两泵浦光是相干或部分相干的，结果将如何呢？He和Cruz等人对此进行了理论和实验研究．Cru。等人的实验研究结果反映了互相干泵
Photorefractive crystals are pumped by two completely irrelevant beams. One of the major features of the mutual-pumping phase conjugation mirror is that it is always an attempt to avoid two Incident light is coherent. What if the two pump lights are coherent or partially coherent? He and Cruz, who conducted a theoretical and experimental study. Cru. The experimental results of others reflect the mutual dry pump