基于凹面阶梯光栅提升光通信质量的研究进展
Research Progress in Enhancing Optical Communication Quality Using Concave Echelle Grating as Demultiplexer
付翔 1邹林 2何天浚 2乐文冉 2汪亚 2王诗崎 2陈航 2占生宝2
作者信息
- 1. 安庆师范大学电子工程与智能制造学院,安徽 安庆 246133;滁州学院机械与电气工程学院,安徽 滁州 239000
- 2. 安庆师范大学电子工程与智能制造学院,安徽 安庆 246133
- 折叠
摘要
为满足波分复用(WDM)光通信系统对中、高质量信号传输的解复用要求,从凹面阶梯光栅(CEG)解复用器的消除串扰和改善波长漂移两方面入手,将消除串扰设计归纳为罗兰圆型、非罗兰圆型以及多个光栅级联三种结构,而将改善波长漂移的方法总结为抑制偏振、平坦光谱两种类型.在介绍凹面光栅解复用原理的基础上,综述了消除串扰、改善波长漂移的研究进展,分析了各个消除串扰、改善波长漂移方案所具有的优势,指出了消除串扰、改善波长漂移需要满足的条件,并展望了解复用器未来可能的发展方向.
Abstract
To meet the requirements of demultiplexing in wavelength division multiplexing(WDM)systems for medium-and high-quality signal transmission,this study investigates two aspects:the elimination of crosstalk and the improvement in the wavelength drift of concave echelle grating(CEG)demultiplexing devices.The design used to eliminate crosstalk is summarized into three structures:Roland circle,non-Roland circle,and multiple grating cascade are presented and analyzed.To improve the wavelength shift,two methods—compensating polarization and flattening passband,are evaluated.Further,in introducing the demultiplexing principles,we review the research progress on crosstalk elimination and wavelength shift improvements and analyze the advantages for the proposed methods of eliminating crosstalk and improving wavelength shift.Additionally,the conditions for eliminating crosstalk and wavelength shift improvements are identified,and the potential future development directions of demultiplexers are discussed.
关键词
波分复用技术/解复用器/凹面阶梯光栅/串扰/波长漂移/集成光学器件Key words
wavelength division multiplexing technology/demultiplexer/concave echelle grating/crosstalk/wavelength shift/integrated optics devices引用本文复制引用
出版年
2024
NETL
NSTL
万方数据