激光与光电子学进展, 2019, 56 (14): 142201, 网络出版: 2019-07-12
多端口波长选择开关的光学设计与优化 下载: 2426次
Optical Design and Optimization of Multiport Wavelength Selective Switch
光学设计 波长选择开关 液晶空间光调制器 ZEMAX optical design wavelength selective switch liquid crystal spatial light modulator ZEMAX
摘要
波长选择开关(WSS)是目前及下一代可重构光分插复用器(ROADM)与动态全光网络的核心器件。WSS目前正向着多端口数与高光谱调制精细度的方向不断发展。利用光学设计软件ZEMAX模拟了整个WSS光学系统,通过建立傅里叶透镜组和双胶合柱面镜模型来改进WSS光学结构。利用评价函数、点列图及光学传递函数等评价手段对所设计的WSS光学系统进行评价与优化,并逐步改善整个WSS光学系统的成像情况。最终,得到了最小光谱滤波带宽在8 GHz范围内的65个端口的WSS光学系统。
Abstract
A wavelength selective switch (WSS) is the core device of the current- and next-generation reconfigurable optical add-drop multiplexer and dynamic all-optical network, which is used to provide high port counts and spectral modulation fitness. In this study, we simulate a WSS system using the ZEMAX optical software. Further, a Fourier lens group and double cylinder lens are employed to improve the optical structure of WSS. The WSS optical structure is designed and optimized by using a merit function, a spot diagram, and an optical transfer function. Subsequently, the imaging capability of the entire WSS optical system is gradually improved. Finally,a 65-port WSS optical system with a minimum spectral filtering bandwidth of 8 GHz is obtained.
张倩, 陈根祥, 宋菲君, 高云舒. 多端口波长选择开关的光学设计与优化[J]. 激光与光电子学进展, 2019, 56(14): 142201. Qian Zhang, Genxiang Chen, Feijun Song, Yunshu Gao. Optical Design and Optimization of Multiport Wavelength Selective Switch[J]. Laser & Optoelectronics Progress, 2019, 56(14): 142201.