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.
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)
