Wavelength-interleaved MDM-WDM transmission over weakly-coupled FMF

doi:10.1364/OE.25.016603

CORC > 北京大学 > 信息科学技术学院

	Wavelength-interleaved MDM-WDM transmission over weakly-coupled FMF
	Tian, Yu ; Li, Juhao ; Wu, Zhongying ; Chen, Yuanxiang ; Zhu, Paikun ; Tang, Ruizhi ; Mo, Qi ; He, Yongqi ; Chen, Zhangyuan
刊名	OPTICS EXPRESS
	2017
关键词	FIBER
DOI	10.1364/OE.25.016603
英文摘要	Recently mode-division-multiplexing (MDM) has been widely investigated to enhance fiber optics capacity, in which modes or mode groups in few-mode fiber (FMF) or multi-mode fiber (MMF) are exploited as different spatial channels for data transmission. For short-reach applications, significantly reducing inter-spatial-channel crosstalk to avoid coherent detection and multiple-input-multiple-output (MIMO) equalization is preferred. Currently most studies focus on the design of weakly-coupled FMFs and mode (de) multiplexers. Alternatively, in this work, a wavelength-interleaved (WI) scheme is proposed to mitigate inter-spatial-channel crosstalk by optimizing the design of direct detection (DD) MDM and wavelength-division-multiplexing (WDM) system. In weaklycoupled MDM systems, crosstalk mainly comes from the adjacent spatial channels, and the signal-to-crosstalk beat interference (SCBI) constitutes main crosstalk impairment after square-law detection. The WI scheme interleaves the WDM grids in adjacent spatial channels by half WDM channel spacing and uses an electrical low-pass filtering (ELPF) to remove out-of-band SCBI. The effectiveness of SCBI suppression is theoretically analyzed. The feasibility of WI scheme is experimentally verified by 3-mode 3-wavelength MDM-WDM transmission over 500-m OM3 MMF. Enabled by WI scheme, record 120-km 10G-per-channel MDM-WDM transmission over 2-mode FMF without MIMO equalization is successfully demonstrated. The WI scheme is promising to enhance the performance of short reach or even metro MDM optics. (C) 2017 Optical Society of America; 973 Program [2014CB340105, 2014CB340101]; National Natural Science Foundation of China (NSFC) [61377072, 61627814, 61690194, 61505002]; SCI(E); ARTICLE; 14; 16603-16617; 25
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/472197]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Tian, Yu,Li, Juhao,Wu, Zhongying,et al. Wavelength-interleaved MDM-WDM transmission over weakly-coupled FMF[J]. OPTICS EXPRESS,2017.
APA	Tian, Yu.,Li, Juhao.,Wu, Zhongying.,Chen, Yuanxiang.,Zhu, Paikun.,...&Chen, Zhangyuan.(2017).Wavelength-interleaved MDM-WDM transmission over weakly-coupled FMF.OPTICS EXPRESS.
MLA	Tian, Yu,et al."Wavelength-interleaved MDM-WDM transmission over weakly-coupled FMF".OPTICS EXPRESS (2017).