光电子快报(英文版), 2012, 8 (5): 380, Published Online: Jul. 12, 2017  

Rayleigh backscattering minimization in single fiber colorless WDM-PON using intensity remodulation technique

Author Affiliations
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
Abstract
The performance of colorless wavelength-division multiplexed passive optical network (WDM-PON) systems suffers from the transmission impairments mainly due to Rayleigh backscattering (RB). In this paper, we propose and demonstrate a single fiber colorless WDM-PON which enhances the tolerance to RB induced noise. The high extinction ratio in both return-to-zero (RZ)-shaped differential phase shift keying (DPSK) downstream (DS) data signal and intensity-remodulated upstream (US) data signal helps to improve the tolerance to RB induced noise. Simulation results show that downstream and upstream signals can achieve error-free performance at 10 Gbit/s with negligible penalty and improve the tolerance to RB induced noise over 25 km standard single-mode fiber.

Yousaf Khan, YU Chong-xiu, XIN Xiang-jun, Amjad Ali, Aftab Husain, LIU Bo. Rayleigh backscattering minimization in single fiber colorless WDM-PON using intensity remodulation technique[J]. 光电子快报(英文版), 2012, 8(5): 380.

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