具有四模式的低串扰及大群时延多芯微结构光纤的设计

徐闵喃; 周桂耀; 陈成; 侯峙云; 夏长明; 周概; 刘宏展; 刘建涛; 张卫

doi:10.7498/aps.64.234206

摘要

针对光纤空分复用及模分复用传输系统中大容量和耦合串扰问题, 本文提出了一种具有四模式特性低串扰及大群时延的大容量多芯微结构光纤, 通过有限元法计算该光纤电磁场分布进而对其他参数进行分析. 结果表明: 合理的选定光纤结构参数, 可使得该光纤在C+L波段内同时实现19芯的LP01, LP11, LP21, LP02四个偏振模式的传输. 同时, 利用空气孔对电磁场较好的隔离作用来优化芯间串扰并得到较大的模式差分群时延及较为平坦的色散. 此外, 这种结构的光纤制作简单, 在短距离大容量的信息传递系统中具有重要应用.

关键词:

Abstract

In this paper, a novel four-mode micro-structured fiber with low-level crosstalk and high mode differential group delay is proposed to solve the large transmission capacity and low crosstalk problems in the mode division multiplexing system. Electromagnetic field distribution, crosstalk, mode differential group delay and dispersion of the fiber are studied by using the full-vector finite element method. To determine the particular parameters of the micro-structured fiber, the performances of the inter-core crosstalk and mode differential group delay (MDGD) are considered comprehensively under different conditions. Simulation results show that this fiber can support four-mode transmission with 19 cores over the whole C+L wavelength band when the cladding diameter is 125 μm. The inter-core crosstalks of LP01 mode, LP11 mode, LP21 mode and LP02 mode are -131.01, -96.36, -63.32, -49.96 dB respectively and the mode differential group delays are high as all of them are more than 160 ps/m. Therefore, compared with the previous work, this fiber has the lower inter-core crosstalk and larger MDGD. Owing to the large index difference between core and cladding, the n_eff differences between the linearly polarized modes are all larger than 10-3across the whole operating wavelength band, which is beneficial to low inter-mode corsstalk. Furthermore, the fabrication of this fiber is simple due to its preforming only need stacking technique to adjust the hexagonal structure geometry size without complex modified chemical vapor deposition process involved. The designed fiber can be used in short-distance and large-capacity transmission system, and it has potential applications in making the corresponding high power devices.

Keywords:

作者及机构信息

1.
华南师范大学, 广东省微纳光子功能材料与器件重点实验室, 广东高校特种功能光纤工程技术研究中心, 广州 510006;

2.
广东省微结构功能光纤与器件工程技术研究中心, 广州 510006

通信作者: 周桂耀, zguiyao@163.com

基金项目: 国家自然科学基金(批准号: 61377100, 61575066)、国家自然科学基金重大仪器专项项目(批准号: 61527822)、高等学校博士学科点专项科研基金(批准号: 20134407120014)和广东省自然基金项目(批准号: S2013040015665)资助的课题.

Authors and contacts

1.
South China Normal University, GuangDong Laboratory of Nanophotonic Functional Materials and Devices, Specially Functional Fiber Engineering Technology Research Center of Guangdong Higher Education Institutes, Guangzhou 510006, China;

2.
Guangdong Provincial Engineering Technology Research Center for Microstructured Functional Fibers and Devices, South China Normal University, Guangzhou 510006, China

Corresponding author: Zhou Gui-Yao, zguiyao@163.com

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 61377100, 61575066), the Major Instrument Project of National Natural Science Foundation of China (Grant No. 61527822), the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20134407120014), and the Guangdong Natural Science Foundation, China (Grant No. S2013040015665).

参考文献

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施引文献

[1]	Sójka L, Pajewski L, liwa M, Mergo P, Benson T M, Sujecki S, Bere P E 2015 Opt. Commun. 344 71
[2]	Lars G N, Yi S, Jeffrey W N, Dan J, Kim G J, Robert L, Bera P 2012 J. Lightwave Technol. 30 3693
[3]	Sillard P, Bigot A M, Boivin D, Maerten H, Provost L 2011 European Conference and Exposition on Optical CommunicationsJuly, 2011 p1
[4]	Agruzov P M, DukelK V, Ilichev I V, Kozlov A S, Shamrai A V, Shevandin V S 2010 Quant. Electron. 40 254
[5]	Qin W, Li S G, Xue J R, Xin X J, Zhang Lei 2013 Chin. Phys. B 22 074213
[6]	Zheng S W 2014 Ph. D. Dissertation (Beijing: Beijing Jiaotong University) (in Chinese) [郑斯文 2014 博士学位论文(北京: 北京交通大学)]
[7]	Xia C, Rodrigo A C, Bai N, Enrique A L, Daniel M A, Axel S, Martin R, Jesus L M, Eduardo M, Zhou X, Li G 2012 IEEE Photonic Tech. L 24 1914
[8]	Hayashi T, Taru T, Shimakawa O, Sasaki T, Sasaoka E 2011 Opt. Express. 19 16576
[9]	Jiang S S, Liu Y, Xing E J 2015 Acta Phys. Sin. 64 064212 (in Chinese) [姜姗姗, 刘艳, 邢尔军 2015 64 064212]
[10]	Yao S C, Fu S N, Zhang M M, Tang P, Shen P, Liu D M 2014 Acta Phys. Sin. 63 144215 [姚殊畅, 付松年, 张敏明, 唐明, 沈平, 刘德明 2014 63 144215]
[11]	Li A, Al A A, Chen X, Shieh W 2011 Opt. Express. 19 8088
[12]	Li D M, Zhou G Y, Xia C M, Wang C, Yuan J H 2014 Chin. Phys. B 23 044209
[13]	Kunimasa S, Masanori K 2005 Opt. Express. 13 267
[14]	Salsi M, Koebele C, Sperti D, Tran P, Mardoyan H, Brindel P, Bigo S, Boutin A, Verluise F, Sillard P, Bigot A M, Provost L, Charlet G 2012 J. Lightwave Technol. 30 618
[15]	Mothe N, Bin P D 2009 Opt. Express. 17 15778
[16]	Takenaga K, Arakawa Y, Tanigawa S, Guan N, Matsuo S, Saitoh K, Koshiba M 2011 IEICE Trans. Commun. E 94-B 409
[17]	Katsuhiro T, Yoko A, Shoji T, Ning G, Shoichiro M, Kunimasa S, Masanori K 2011 Optical Fiber Communication Conference 2011 p1
[18]	Liu D M, Sun J Q, Lu P 2008 Fiber Optics 2(Beijing:Science Press) p73-93[刘德明, 孙军强, 鲁平 2008 光纤光学 2(北京:科学出版社)第 73-93 页]
[19]	Xie Y W, Fu S N, Zhang M M, Tang P, Shen P, Liu D M 2013 Acta. Opt. Sin. 33 0906010-1 [谢意维, 付松年, 张海亮, 唐明, 沈平, 刘德明 2013 光学学报 33 0906010-1]
[20]	Bao Y J, Li S G, Zhang W, An G W, Fan Z K 2014 Chin. Phys. B 23 104218
[21]	Yang W X, Zhou G Y, Xia C M, Wang W, Hu H J, Hou L T 2011 Acta Phys. Sin. 60 104222 (in Chinese) [杨旺喜, 周桂耀, 夏长明, 王伟, 胡慧军, 侯蓝田 2011 60 104222]
[22]	Dai N L, Li Y, Peng J G, Li J Y 2011 Laser. Opt. Pro. 48 010602 [戴能利, 李洋, 彭景刚, 李进延 2011 激光与光电子学进展 48 010602]

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