Sprague R A
Appl Opt. 1978 Sep 1;17(17):2762-7. doi: 10.1364/AO.17.002762.
This paper describes a system which performs real-time optical processing of electrical signals. The signals of interest are recorded in a raster format on the Itek PROM (Pockels Readout Optical Modulator), a light addressed electrooptic imaging device. The PROM is then read out with laser light to perform optical Fourier transformation, achieving spectrum analysis in near real time. A technique called acoustooptic snapshot recording is used to generate the required low distortion raster at rf bandwidths.
本文描述了一种对电信号进行实时光学处理的系统。感兴趣的信号以光栅格式记录在Itek PROM（普克尔盒读出光调制器）上，这是一种光寻址电光成像器件。然后用激光读出PROM以进行光学傅里叶变换，从而实现近实时的频谱分析。一种称为声光快照记录的技术用于在射频带宽下生成所需的低失真光栅。
