提出了一种基于光子晶体环形腔的OADM(光分插复用器), 采用正方晶格光子晶体结构, 通过线缺陷与环形腔的耦合实现光分插复用, 利用环形腔的频率选择功能实现对特定频率光波的上/下载。仿真结果表明, 当入射端口有多个波长的光波入射时, 该OADM可以上/下载波长为1 554.9 nm的光波, 上/下载率为98.23%, 插入损耗为0.077 55 dB, 信道隔离度分别为33.37和32.98 dB。该器件性能优良, 对光通信集成器件的发展具有参考意义。

This paper presents a photonic crystal ring cavity-based Optical Add/Drop Multiplexers (OADM). In a square lattice photonic crystal structure, this device implements optical add/drop multiplexing by the coupling of line defects with ring cavity and the upload/download of the light waves at the specific frequency using the frequency selection function of the ring cavity. The simulation results show that when the incident port has incident light waves at multiple wavelengths, this OADM can upload/download light waves at a wavelength of 1 554.9 nm, the upload/download rate is 98.23%, the insertion loss is 0.077 55 dB and the channel isolation is 33.37 dB and 32.98 dB respectively. With excellent performances, this device has reference significance to the development of integrated devices for optical communication.