Optical processing with feedback using smart-pixel spatial light modulators
Optical processing with feedback using smart-pixel spatial light modulators
复制标题
使用智能像素空间光调制器进行带反馈的光学处理
DOI：
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复制
发表时间：
1998
期刊：
影响因子：
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通讯作者：
P. Hemmer
中科院分区：
文献类型：
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作者：
J. Kane;T. Kincaid;P. Hemmer
空间光调制器通常用作实时识别架构中的基本元件。然而，许多设备遭受影响任何实时识别方案的整体性能的差的均匀性和/或非线性。我们建议使用光学反馈作为改善器件性能的方法。我们分别通过板上电子处理器和光学偏振强度编码的混合来演示正反馈和负反馈。将空间光调制器放置在正反馈系统中使得系统像存储器一样工作。将空间光调制器放置在负反馈系统中使得空间光调制器响应更加模拟，这进而导致改进的均匀性。© 1998年摄影光学仪器工程师协会。（S 0091 -3286（98）02103-5）主题术语：空间光调制器;光反馈;信号处理;自由空间;铁电体。
A spatial light modulator is often used as the basic element in real-time recognition architectures. However, many of the devices suffer from poor uniformity and/or nonlinearities that affect the overall perfor- mance of any real-time recognition scheme. We propose using optical feedback as a method of improving device performance. We demon- strate both positive and negative feedback separately through a mixture of on-board electronic processors and optical polarization intensity en- coding. Placing the spatial light modulator in a positive feedback system causes the system to act like a memory. Placing the spatial light modu- lator in a negative feedback system makes the spatial light modulator response more analog, which in turn leads to improved uniformity. © 1998 Society of Photo-Optical Instrumentation Engineers. (S0091-3286(98)02103-5) Subject terms: spatial light modulators; optical feedback; signal processing; free space; ferroelectric.