摘要
本文提出了一种基于光子晶体AAH(Aubry-André-Harper)腔的八信道密集波分复用器,结合耦合模理论建立模型并分析传输性能,采用三维时域有限差分法(finite-difference time-domain,FDTD)仿真验证。仿真结果显示,该器件在1558.4 nm、1557.6 nm、1556.8 nm、1556.0 nm、1555.2 nm、1554.4 nm、1553.6 nm和1552.8 nm工作波长下可实现信道间隔为0.8 nm密集波分复用(dense wavelength division multiplexing,DWDM)功能,且插入损耗最低可达0.22 dB,信道串扰最低可达-61 dB。谱线宽度均为0.2 nm,八信道器件尺寸仅114.81μm×10.75μm×0.22μm。该器件具备低损耗、低串扰、窄线宽的优点,且结构简单,易拓展信道数,可应用于高速大容量光通信系统。
This paper presents the design of an eight-channel dense wavelength division multiplexer based on a photonic crystal Aubry-André-Harper()cavity.The model is established and transmission performance is analyzed using coupled-mode theory,and the design is validated through three-dimensional finite-difference time-domain(FDTD)simulations.The simulation results demonstrate that the device can achieve dense wavelength division multiplexing(DWDM)functionality with a channel spacing of 0.8 nm at operating wavelengths of 1558.4 nm,1557.6 nm,1556.8 nm,1556.0 nm,1555.2 nm,1554.4 nm,1553.6 nm,and 1552.8 nm.The device exhibits a minimum insertion loss of 0.22 dB and a minimum channel crosstalk of-61 dB.The linewidth is uniformly 0.2 nm,and the size of the eight-channel device is only 114.81μm×10.75μm×0.22μm.This device features low loss,low crosstalk,and narrow linewidth,with a simple structure that can be easily expanded to accommodate more channels,making it suitable for high-speed,high-capacity optical communication systems.
作者
陈希
胡宇宸
陈鹤鸣
CHEN Xi;HU Yuchen;CHEN Heming(Jiangsu Open University(the City Vocational College of Jiangsu),Nanjing,Jiangsu 210036,China;College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology),Nanjing University of Posts and Telecommunications,Nanjing,Jiangsu 210023,China)
出处
《光电子.激光》
北大核心
2025年第12期1247-1256,共10页
Journal of Optoelectronics·Laser
基金
国家自然科学基金(61571237)
江苏省自然科学基金(BK20151509)
江苏省研究生科研与实践创新计划项目(KYCX20_0769)资助项目。
关键词
光子晶体
耦合模理论
光子集成
密集波分复用(DWDM)
photonic crystal
coupled-mode theory
photonic integration
dense wavelength division multiplexing(DWDM)
