In this paper, 2-channel and 4-channel optical demultiplexers have been designed based on photonic crystal nano-ring resonator. The structure of both demultiplexers is based on the use of a photonic crystal filter. The mean quality factor of 2828, mean transfer factor of 95%, mean cross-talk of − 25.07 dB, and an inter-channel distance of 7.4 nm are among the structural advantages of the 2-channel demultiplexer. The advantages of the 4-channel demultiplexer include the mean quality factor of 4525, mean channel power transfer factor of 95%, and maximum and minimum channel cross-talk of − 19.6 and − 40.4, respectively. Also, the inter-channel difference is 7.8 nm and mean channel width is 0.375 nm. Moreover, the simplicity of the structure and the small size are among the characteristics of these designs. The proposed 2-channel and 4-channel demultiplexers can be used in WDM systems, especially DWDM systems.

中文翻译：

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基于光子晶体纳米环谐振器的低串扰高品质因数2通道和4通道光解复用器的设计

本文基于光子晶体纳米环谐振器设计了2通道和4通道光解复用器。两个解复用器的结构均基于光子晶体滤波器的使用。2通道解复用器的结构优势包括平均质量因子2828，平均传输因子95％，平均串扰-25.07 dB和通道间距离7.4​​ nm。4通道解复用器的优势包括平均质量因子4525，平均通道功率传输因子95％以及最大和最小通道串扰分别为− 19.6和− 40.4。另外，通道间的差为7.8nm，平均通道宽度为0.375nm。而且，结构的简单性和小尺寸是这些设计的特征。