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光折变相干光放大与量子相干光放大不同，前者是基于光折变效应和光的干涉、衍射现象实现的一种光像放大，因此具有重要的应用价值。由于光折变晶体可在低光功率下产生显著的光折变效应，应用半导体激光器和光折变效应的这一特点，可以想象，像半导体三极管一样的光折变光放大器也会问世。讨论了光折变光放大器的工作原理，并指出它的可能潜在应用
Photorefractive coherent light amplification is different from quantum coherent light amplification, the former is based on the photorefractive effect and light interference, diffraction phenomenon to achieve a light image amplification, it has important application value. Since photorefractive crystals can produce significant photorefractive effects at low optical powers, applying the characteristics of semiconductor lasers and photorefractive effects, it is conceivable that photorefractive optical amplifiers, such as semiconductor transistors, will also be available. The working principle of photorefractive optical amplifier is discussed, and its potential application is pointed out