红外与毫米波学报2018，Vol.37Issue(1)：50-59,10.DOI:10.11972/j.issn.1001-9014.2018.01.011
光子晶体粗波分—模分混合复用/解复用器
Coarse wavelength-mode-division hybrid multiplexer/ de-multiplexer of photonic crystal
摘要
Abstract
In this paper,based on photonic crystal (PC),a coarse-wavelength-mode-division hybrid multiplexer/de-multiplexer is proposed.The coarse wavelength division multiplexing (CWDM) and mode division multiplexing (MDM) can be integrated on a chip of PC.According to coupled mode theory in time,point-defect cavities and wavelength-selective cavities were introduced in the PC to filter the optical wave.According to the lateral coupled mode theory,asymmetric parallel waveguides (APWs) consisted of single-mode waveguides (SMWs) and multi-mode waveguides (MMWs) were introduced in the PC to achieve mode conversion.The finite-difference time-domain (FDTD) method is used for property analysis.The simulation results show that the device achieves the multiplexing/demultiplexing of four signals,i.e.,the 1 550 nm TE0 mode,1570 nm TE0 mode,1 550 nm TEl mode and 1 570 nm TEl mode.The device exhibits not only a low insertion loss (＜ 0.23 dB) but also low mode crosstalk (＜-15.21 dB).It has considerable potential for application in the CWDM-MDM system and great value to improve the capacity of metropolitan area network.关键词
光通信/耦合模理论/混合复用/解复用器/光子晶体Key words
optical communication/coupled mode theory/hybrid multiplexer/de-multiplexer/photonic crystal分类
信息技术与安全科学引用本文复制引用
季珂,陈鹤鸣..光子晶体粗波分—模分混合复用/解复用器[J].红外与毫米波学报,2018,37(1):50-59,10.基金项目
国家自然科学基金(61571237) （61571237）
江苏省自然科学基金(BK20151509) （BK20151509）
江苏省研究生创新项目(KYLX15_0835,KYZZ16_0251)Supported by the National Natural Science Foundation of China (61571237) （KYLX15_0835,KYZZ16_0251）
Natural Science Foundation of Jiangsu Province of China (BK20151509) （BK20151509）
Colleges and Universities in Jiangsu Province plans to graduate research and innovation (KYLX15_0835,KYZZ16_0251) （KYLX15_0835,KYZZ16_0251）
