基于磁光效应的二维三角晶格光子晶体模分复用器

周雯; 陈鹤鸣

doi:10.7498/aps.64.064210

摘要

随着全光通信的快速发展, 波分复用传输系统已不能满足高容量光网络的需求, 而模分复用技术利用有限的稳定模式作为独立信道传递信息, 可以成倍地提高系统容量和频谱效率, 是构建未来光网络的关键技术之一. 本文基于掺Bi复合稀土铁石榴石的磁光效应, 设计了1.55 μm波段的二维三角晶格光子晶体模分复用器. 在该光子晶体结构中引入缺陷, 形成模式分束波导, 通过外加磁场改变其在不同偏振模式下的磁导率, 从而控制TE, TM模式的传输, 实现了1.55 μm波段的模分复用. 利用平面波展开法和时域有限差分法对此模分复用器进行了能带和传输特性分析, 结果表明: TE和TM模式的透射率均高于92%, 信道隔离度分别为19.7 dB和42.1 dB. 这些特性在未来的大容量光传输系统中有着重要的应用前景.

关键词:

Abstract

With the rapid development of all-optical communication, the wavelength division multiplexing transmission system cannot meet the requirements of high capacity in optical networks, while mode division multiplexing uses the limited stability modes as independent channels to transmit information, improving the system capacity and spectrum efficiency, which is one of the key technologies in the construction of future optical network. In this paper, a mode division multiplexer of two-dimensional triangular lattice photonic crystal in 1.55 μm band based on the magneto-optic effect of Bi-doped compound rare earth iron garnet bulk single crystal is proposed. The defects of TbYbBiIG medium are introduced as mode splitting waveguides in photonic crystal, of which the permeability changes with the applied magnetic field in different polarization modes. Therefore, mode division multiplexing in 1.55 μm band can be achieved by controlling the propagations of TE and TM mode. The band and transmission characteristics of this device can be analyzed by using the plane wave expansion and finite difference time domain method. The results show that the transmission rates of TE and TM modes both exceed 92% and channel segregation degrees reach 19.7 dB and 42.1 dB respectively. These features indicate the important application prospect in the future high-capacity optical transmission system.

Keywords:

作者及机构信息

周雯¹,
陈鹤鸣²

1.
南京邮电大学光电工程学院, 南京 210023;

2.
南京邮电大学贝尔英才学院, 南京 210023

基金项目: 国家自然科学基金(批准号: 61077084)和江苏省普通高校研究生科研创新计划(批准号: CXLX13_451) 资助的课题.

Authors and contacts

Zhou Wen¹,
Chen He-Ming²

1.
Department of Opto-Electronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;

2.
Department of Bell, Nanjing University of Posts and Telecommunications, Nanjing 210023, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 61077084), and the Colleges and Universities in Jiangsu Province Plans for Graduate Research and Innovation, China (Grant No. CXLX13_451).

参考文献

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[2]	Tamaki T, Kaneda H, Kawanmura N 1991 Appl. Phys. 70 4581
[3]	Matsuda K, Minemoto H, Kamada O 1987 IEEE Trans. Magn. 23 3479
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[5]	Ying J F, Yi S L, Sheng D L 2013 Opt. Lett. 38 4915
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[8]	Zhao X X, Zhu Q F, Zhang Y 2009 Chin. Phys. B 18 2864
[9]	Chen H M, Meng Q 2011 Acta Phys. Sin. 60 014202 (in Chinese) [陈鹤鸣, 孟晴 2011 物理学报 60 014202]
[10]	Chen H M, Su J, Wang J L, Zhao X Y 2011 Opt. Express 19 3599
[11]	Zhang X Y, Hosseini A, Charkravarty S 2013 Opt. Lett. 38 4931
[12]	Han J W, Zhang J, Zhao Y L, Gu W Y 2013 Optik 124 1287
[13]	Guillaμme L C, Yves Q, Antoine L R 2013 Opt. Express 21 31646
[14]	Yao S C, Fu S N, Zhang M M, Tang M, Shen P, Liu D M 2013 Acta Phys. Sin. 62 144215 (in Chinese) [姚殊畅, 付松年, 张敏明, 唐明, 沈平, 刘德明 2013 物理学报 62 144215]
[15]	Sun L L, Shen Y F, Wang J, Zhou J 2010 Acta Photon. Sin. 39 1796 (in Chinese) [孙露露, 沈义峰, 王娟, 周杰 2010 光子学报 39 1796]
[16]	Fan F, Guo Z, Bai J J, Wang X H, Chang S J 2011 Acta Phys. Sin. 60 084219 (in Chinese) [范飞, 郭展, 白晋军, 王湘晖, 常胜江 2011 物理学报 60 084219]
[17]	Zhou F, Fei H M, Yang Y B, Wu J J 2014 Infrared Millim. Waves 33 155 (in Chinese) [周飞, 费宏明, 杨毅彪, 武建加 2014 红外与毫米波学报 33 155]
[18]	Chul S K, Jae E K, Hae Y P 2000 Phys. Rev. B 61 15523
[19]	Pozar D M 2011 Microwave Engineering (4th Ed.) (Wiley: John Wiley & Sons, Inc.) p477
[20]	Wang W, Lan Z W, Ji H, Wang H C 2002 Electron. Compon. Mater. 21 23 (in Chinese) [王巍, 兰中文, 姬洪, 王豪才 2002 电子元件与材料 21 23]

施引文献

[1]	Scott G B, Laklison D E 1976 IEEE Trans. Magn. 12 292
[2]	Tamaki T, Kaneda H, Kawanmura N 1991 Appl. Phys. 70 4581
[3]	Matsuda K, Minemoto H, Kamada O 1987 IEEE Trans. Magn. 23 3479
[4]	Li M, Xu Z C, Huang M, Yan M, Zhang Z L 2006 Infrared Millim. Waves 25 101 (in Chinese) [李淼, 徐志成, 黄敏, 严密, 张志良 2006 红外与毫米波学报 25 101]
[5]	Ying J F, Yi S L, Sheng D L 2013 Opt. Lett. 38 4915
[6]	Wang D, Cui K Y, Feng X, Huang Y D 2013 Chin. Phys. B 22 094209
[7]	Jiang B, Zhang Y J, Zhou W J, Chen W, Liu A J, Zheng W H 2011 Chin. Phys. B 20 024208
[8]	Zhao X X, Zhu Q F, Zhang Y 2009 Chin. Phys. B 18 2864
[9]	Chen H M, Meng Q 2011 Acta Phys. Sin. 60 014202 (in Chinese) [陈鹤鸣, 孟晴 2011 物理学报 60 014202]
[10]	Chen H M, Su J, Wang J L, Zhao X Y 2011 Opt. Express 19 3599
[11]	Zhang X Y, Hosseini A, Charkravarty S 2013 Opt. Lett. 38 4931
[12]	Han J W, Zhang J, Zhao Y L, Gu W Y 2013 Optik 124 1287
[13]	Guillaμme L C, Yves Q, Antoine L R 2013 Opt. Express 21 31646
[14]	Yao S C, Fu S N, Zhang M M, Tang M, Shen P, Liu D M 2013 Acta Phys. Sin. 62 144215 (in Chinese) [姚殊畅, 付松年, 张敏明, 唐明, 沈平, 刘德明 2013 物理学报 62 144215]
[15]	Sun L L, Shen Y F, Wang J, Zhou J 2010 Acta Photon. Sin. 39 1796 (in Chinese) [孙露露, 沈义峰, 王娟, 周杰 2010 光子学报 39 1796]
[16]	Fan F, Guo Z, Bai J J, Wang X H, Chang S J 2011 Acta Phys. Sin. 60 084219 (in Chinese) [范飞, 郭展, 白晋军, 王湘晖, 常胜江 2011 物理学报 60 084219]
[17]	Zhou F, Fei H M, Yang Y B, Wu J J 2014 Infrared Millim. Waves 33 155 (in Chinese) [周飞, 费宏明, 杨毅彪, 武建加 2014 红外与毫米波学报 33 155]
[18]	Chul S K, Jae E K, Hae Y P 2000 Phys. Rev. B 61 15523
[19]	Pozar D M 2011 Microwave Engineering (4th Ed.) (Wiley: John Wiley & Sons, Inc.) p477
[20]	Wang W, Lan Z W, Ji H, Wang H C 2002 Electron. Compon. Mater. 21 23 (in Chinese) [王巍, 兰中文, 姬洪, 王豪才 2002 电子元件与材料 21 23]

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