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利用四个平行耦合单环谐振器作为基本路由单元,数值模拟了一种可路由三种信道波长的四端口光路由器.为了实现单模传输、低传输损耗以及微环波导和信道波导的相位匹配,优化了基本路由单元的结构参量.给出了路由器的器件架构和设计方法,计算了链路光谱、插入损耗、串扰等路由特性.在选定的三个信道波长(1 550、1 551.6、1 553.2nm)下,器件沿不同路径的插入损耗范围为0.02~0.6dB,器件串扰的范围为-23.41~-37.71dB.与具有相同波导参量的基于交叉耦合双环谐振器的四端口光路由器相比,该四端口光路由器在串扰和波长选择性方面略显不足,但其使用的微环数量由8个降低为4个,插入损耗由1.62dB降低为0.02dB.
Using four parallel coupled monocyclic resonators as the basic routing unit, a four-port optical router that can route three kinds of channel wavelengths is numerically simulated.In order to achieve single-mode transmission, low transmission loss and phase matching of microring and channel waveguides , The structural parameters of the basic routing unit are optimized.The device architecture and design method of the router are given and the routing characteristics such as link spectrum, insertion loss and crosstalk are calculated.After selecting the three channel wavelengths (1 550, 1 551.6, 1 553.2nm), the insertion loss of the device along different paths is in the range of 0.02 ~ 0.6dB and the device crosstalk is in the range of -23.41 ~ -37.71dB. Compared with the four-port optical router based on the cross-coupled double loop resonator with the same waveguide parameters Compared with the four-port optical router, the crosstalk and wavelength selectivity are slightly less than the four-port optical router. However, the number of micro-rings used therein is reduced from 8 to 4, and the insertion loss is reduced from 1.62 dB to 0.02 dB.