Single fiber colorless symmetric WDM-PON architecture using time interleaved remodulation technique for mitigating Rayleigh backscattering resilience  

作　　者：Muhammad Idrees Afridi 张杰 赵永利 Abdul Latif Shahab Ahmed Niazi 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications, School of Electronic Engineering, Beijing University of Posts and Telecommunications

出　　处：《Optoelectronics Letters》2013年第1期38-41,共4页光电子快报（英文版）

基　　金：supported by the National Basic Research Program of China (No.2010CB328204);the National Natural Science Foundation of China (No.60932004);the National High Technology Research and Development Program of China (No.2012AA011301);the Research Fund for the Doctoral Program of Higher Education of China (No.20090005110013);the 111 Project of China (No.B07005);the Fundamental Research Funds for the Central Universities (No.2011RC0406)

摘　　要：A time interleaved differential phase shift keying (DPSK) remodulation technique is proposed to mitigate the effect of Rayleigh backscattering (RBS)-induced noise in a single fiber colorless wavelength-division-multiplexing passive optical network (WDM-PON). In order to achieve a cost effective optical network unit (ONU) solution without dedicated laser sources for upstream signals to provide optimum symmetric capacity in a colorless WDM-PON, remodulation becomes the core attraction. Also as the performance of colorless WDM-PON systems suffers from the transmission impairments due to RBS, it is mitigated by using this remodulation scheme. Simulation results show that downstream and upstream signals achieve the error-free performance at 10 Gbit/s with negligible penalty, and enhance the tolerance to RBS-induced noise over a 25 km single-mode fiber.A time interleaved differential phase shift keying （DPSK） remodulation technique is proposed to mitigate the effect of Rayleigh backscattering （RBS）-induced noise in a single fiber colorless wavelength-division-multiplexing passive optical network （WDM-PON）. In order to achieve a cost effective optical network unit （ONU） solution without dedicated laser sources for upstream signals to provide optimum symmetric capacity in a colorless WDM-PON, remodulation becomes the core attraction. Also as the performance of colorless WDM-PON systems suffers from the transmission impairments due to RBS, it is miti- gated by using this remodulation scheme. Simulation results show that downstream and upstream signals achieve the error-free performance at 10 Gbit/s with negligible penalty, and enhance the tolerance to RBS-induced noise over a 25 km single-mode fiber.

关 键 词：WDM-PON 调制技术 瑞利后向散射 单纤维 无色 对称 交错 时间 

分 类 号：TN929.1[电子电信—通信与信息系统]