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

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2013,（1）
• 页码范围: 38-41
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/S11801-013-2354-6

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.