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

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2012,（5）
• 页码范围: 380-383
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11801-012-2268-8

摘要

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.