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通常光折变全息存储中用原记录时的参考光再现时，透过光折变晶体的散射光会降低再现图象的质量．我们在实验中对这种影响进行了研究，发现信噪比低的再现象是由信号－嗓音混合栅产生的相位畸变波．我们用参考光的相位共轭光作为再现光，有效地降低了再现象中的噪音，获得了高信噪比的再现图象．基于光折变波耦合理论，我们得到了和实验结果相符合的理论结果．
Often, in the case of the photorefractive holographic storage using the reference light in the original recording, the scattered light transmitted through the photorefractive crystal decreases the quality of the reproduced image. We studied this effect experimentally and found that the recursive phenomenon of low signal-to-noise ratio is the phase distortion wave generated by the signal-voice hybrid grid. We use the phase-conjugate light of the reference light as the reproducing light, effectively reducing the noise in the reproduced image, and obtaining the reproduced image with a high signal-to-noise ratio. Based on the theory of photorefractive wave coupling, we obtain the theoretical results that are consistent with the experimental results.