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PSEUDORANDOM PHASE-ONLY ENCODING OF REAL-TIME SPATIAL LIGHT MODULATORS

机译:伪随机相位的实时空间光调制器编码

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We previously proposed a method of mapping full-complex spatial modulations into phase-only modulations. The Fourier transform of the encoded modulations approximates that of the original complex modulations. The amplitude of each pixel is encoded by the property that the amplitude of a random-phasor sum is reduced corresponding to its standard deviation. Pseudorandom encoding is designed for phase-only spatial light modulators that produce 360 degrees phase shifts. Because such devices are rare, experiments are performed with a 326 degrees modulator composed of two In Focus model TVT6000 liquid-crystal displays. Qualitative agreement with theory is achieved despite several nonideal properties of the modulator. (C) 1996 Optical Society of America [References: 14]
机译:我们之前提出了一种将全复数空间调制映射为仅相位调制的方法。编码调制的傅立叶变换近似于原始复调制的傅立叶变换。每个像素的幅度由以下特性编码:随机相量和的幅度对应于其标准偏差而减小。伪随机编码是为产生360度相移的仅相位空间光调制器设计的。由于此类设备很少见,因此需要使用由两个In Focus型TVT6000液晶显示器组成的326度调制器进行实验。尽管调制器具有多种非理想特性,但仍能达到与理论的定性一致。 (C)1996年美国眼镜学会[参考文献:14]

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