少模光纤模式差分群时延的设计与优化

谢意维; 付松年; 张海亮; 唐明; 沈平; 刘德明

doi:doi:10.3788/aos201333.0906010

光学学报, 2013, 33 (9): 0906010, 网络出版: 2013-07-16

少模光纤模式差分群时延的设计与优化下载： 530次

Design and Optimization of Mode Differential Group Delay for Few-Mode Fiber

论文大纲

谢意维 ^*付松年张海亮唐明沈平刘德明

作者单位

华中科技大学下一代互联网接入系统国家工程实验室, 湖北武汉 430074

光纤光学模分复用少模光纤折射率剖面模式差分群时延 fiber optics mode division multiplexing few-mode fiber refractive index profile mode differential group delay

摘要

基于少模光纤(FMF)的模分复用（MDM）传输系统，模式差分群时延（MDGD）是影响系统设计的关键因素之一。考虑实际光纤制备工艺，数值分析了阶跃折射率(SI)光纤、渐变折射率(GI)光纤、带有外下陷包层的阶跃型光纤和带有外下陷包层的渐变型光纤中不同的MDGD特性。在支持四个导模条件下，优化设计得到两种不同折射率剖面分布的四模光纤，分别具有较大的MDGD(LP11，LP12，LP02与LP01的MDGD分别是4.65,10.02,11.73 ps/m)和较小的MDGD(LP11，LP12，LP02与LP01的MDGD分别是-0.049, -0.258, -0.168 ps/m)。制备了阶跃折射率分布的少模光纤，其实测基模的损耗为0.23 dB/km(1550 nm)和0.37 dB/km(1310 nm)测量及分析结果证明其能够支持MDM应用。

Abstract

In mode division multiplexing (MDM) transmission system using few-mode fiber (FMF), mode differential group delay (MDGD) is one of the key factors that influence the system performance. Considering the practical fiber fabrication technique, the MDGD characteristics between different modes of step-index (SI) fiber, graded-index (GI) fiber, trench-assisted SI fiber, and trench-assisted GI fiber are numerically investigated. Under the condition of supporting four modes, two optimized refractive index profiles of FMFs with high and low MDGDs are presented. The high MDGDs of LP11, LP12, LP02 versus LP01 are 4.65, 10.02, 11.73 ps/m, respectively; while low MDGDs of LP11, LP12, LP02 versus LP01 are -0.049, -0.258, -0.168 ps/m, respectively. We fabricate and characterize the FMF with a SI profile, whose loss of fundamental mode is 0.23 dB/km at 1550 nm and 0.37 dB/km at 1310 nm. The measurement and analysis results indicate that it can be used for future MDM transmission system.

参考文献

[1] R J Essiambre, G Kramer, P J Winzer, et al.. Capacity limits of optical fiber networks [J]. J Lightwave Technol, 2010, 28(4): 662-701.

[2] R Ryf, S Randel, A H Gnauck, et al.. Mode-division multiplexing over 96 km of few-mode fiber using coherent 6×6 MIMO processing [J]. J Lightwave Technol, 2012, 30(4): 521-531.

[3] R Ryf, S Randel, N K Fontaine. 32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber [C]. Optical Fiber Communicaton Conference, 2013. PDP5A.

[4] R Ryf, S Randel, A H Gnauck, et al.. Space-division multiplexing over 10 km of three-mode fiber using coherent 6×6 MIMO processing [C]. Optical Fiber Communication Conference, 2011. PDPB10.

[5] P Sillard, M Astruc, D Boivin, et al.. Few-mode fiber for uncoupled mode-division multiplexing transmissions [C]. 37th European Conference and Exposition on Optical Communications, 2011. Tu.5.LeCervin.7.

[6] An Li, Abdullah Al Amin, Xi Chen, et al.. Transmission of 107-Gb/s mode and polarization multiplexed CO-OFDM signal over a two-mode fiber [J]. Opt Express, 2011, 19(9): 8808-8814.

[7] C Koebele, M Salsi, D Sperti, et al.. Two-mode transmission with digital inter-modal cross-talk mitigation [C]. ECOC Technical Digest, 2011. Tu.5.B.4.

[8] A R William, N J Summit. Optical Fiber Comprising a Refractive Index Trench [P]. US Patent 4852968, 1989.

[9] L de Montmorillo, P Matthijsse, F Gooijer, et al.. Bend-optimized G.652D compatible trench-assisted single mode fibers [C]. 55th IWCS, 2006. 342-347.

[10] P Sillard, S Richard, L A de Montmorillon, et al.. Micro-bend losses of trench-assisted single-mode fibers [C]. European Conference on Optical Communication, 2010. We.8.F.3.

[11] L Grüner-Nielsen, Y Sun, J W Nicholson, et al.. Few mode transmission fiber with low DGD, low mode coupling and low loss [C]. Optical Fiber Communication Conference, 2012. PDP5A.

[12] 刘德明, 孙军强, 鲁平, 等. 光纤光学［M］. 北京: 科学出版社, 2008. 73-93.

Liu Deming, Sun Junqiang, Lu Ping, et al.. Fiber Optics [M]. Beijing: Science Press, 2008. 73-93.

[13] P R Watekar, S Ju, W T Han. Single-mode optical fiber design with wide-band ultra low bending-loss for FTTH application [J]. Opt Express, 2008, 16(2): 1180-1185.

[14] S Schllmann, C Xia, W Rosenkranz. Experimental investigations of mode group diversity multiplexing on multimode fibre [C]. Optical Fiber Communication Conference, 2006. OWR3.

[15] D K Mynbaev, L L Scheiner. Fiber-Optic Communications Technology [M]. Upper Saddle River: Prentice Hall Press, 2000. 104.

谢意维, 付松年, 张海亮, 唐明, 沈平, 刘德明. 少模光纤模式差分群时延的设计与优化[J]. 光学学报, 2013, 33(9): 0906010. Xie Yiwei, Fu Songnian, Zhang Hailiang, Tang Ming, Shen Ping, Liu Deming. Design and Optimization of Mode Differential Group Delay for Few-Mode Fiber[J]. Acta Optica Sinica, 2013, 33(9): 0906010.

少模光纤模式差分群时延的设计与优化下载： 530次

关于本站 Cookie 的使用提示

全站搜索

少模光纤模式差分群时延的设计与优化 下载： 530次

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索

少模光纤模式差分群时延的设计与优化下载： 530次