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声光移频
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声光移频
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acousto-optic frequency shift
声光移频
激光通过超声波作用下的声光介质后发生布拉格衍射,出射光分裂为零级光和一级光两个分量,频率不同,频差为声光调制的调制频率,偏振态相同,并且空间位置不重合的光频分裂技术。
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