Thylen L, Stensland L
Appl Opt. 1981 May 15;20(10):1825-32. doi: 10.1364/AO.20.001825.
An integrated optics spectrum analyzer based on using the linear electrooptic effect is investigated. This spectrum analyzer performs Fourier analysis of sampled electronic signals, where each signal is fed to an electrode of an electrode array. The electrode array acts as a spatial light modulator, and the diffracted light field, representing a weighted discrete Fourier transform (DFT), is focused on a detector array by an integrated transform lens. The theory of operation of the spectrum analyzer is outlined, numerical results relating to this theory are presented, and questions concerning efficiency, dynamic range, design, and implementation are discussed.
研究了一种基于线性电光效应的集成光学频谱分析仪。该频谱分析仪对采样的电信号进行傅里叶分析，其中每个信号被馈送到电极阵列的一个电极。电极阵列充当空间光调制器，代表加权离散傅里叶变换（DFT）的衍射光场通过集成变换透镜聚焦在探测器阵列上。概述了频谱分析仪的工作原理，给出了与该理论相关的数值结果，并讨论了有关效率、动态范围、设计和实现的问题。
