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8GHz范围内的65个端口的WSS光学系统。
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.
作者
张倩
陈根祥
宋菲君
高云舒
Zhang Qian;Chen Genxiang;Song Feijun;Gao Yunshu(College of Life and Environmental Sciences,Minzu University of China,Beijing,100081,Chiiia;School of Electronic and Information Engineering,Beijing Jiaotong University,Beijing,100044,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2019年第14期226-231,共6页
Laser & Optoelectronics Progress
基金
国家重大科研仪器研制项目(61627814)
国家自然科学基金(61275052)
关键词
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
