Optoelectronics Letters

, Volume 8, Issue 5, pp 380–383

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

  • Yousaf Khan
  • Chong-xiu Yu (余重秀)
  • Xiang-jun Xin (忻向军)
  • Amjad Ali
  • Aftab Husain
  • Bo Liu (刘博)
Article

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.

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Copyright information

© Tianjin University of Technology and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Yousaf Khan
    • 1
  • Chong-xiu Yu (余重秀)
    • 1
  • Xiang-jun Xin (忻向军)
    • 1
  • Amjad Ali
    • 1
  • Aftab Husain
    • 1
  • Bo Liu (刘博)
    • 1
  1. 1.State Key Laboratory of Information Photonics and Optical CommunicationsBeijing University of Posts and TelecommunicationsBeijingChina

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