Open AccessA Raman amplified GPON reach extension system using parameters of a deployed fiber
Author(s) -
Lufeng Leng,
T. T. T. Le
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.026473
Subject(s) - passive optical network , optics , raman amplification , computer science , signal (programming language) , transceiver , upstream (networking) , gigabit , raman spectroscopy , wavelength division multiplexing , physics , raman scattering , materials science , telecommunications , wavelength , wireless , programming language
Recently distributed Raman amplification of the upstream signal has been proposed to improve the loss budget for gigabit passive optical networks (GPON), and systems of 60-km reach and up to 128 way split have been demonstrated employing state-of-the-art fibers. However, a deployed fiber plant may not perform as well due to elevated fiber attenuation, splice losses, and back-reflections that are present in a realistic GPON system. In this paper, their effects on the Raman amplified 1310-nm upstream signal in a GPON reach extension system is investigated numerically. Using the parameters of a deployed fiber, a design solution is provided for a purely passive, Raman amplified GPON reach extender. Results show that 55-km logical reach and 1:32 split ratio can be achieved using a realistic fiber plant and class B + transceivers.