title: A Raman amplified GPON reach extension system using parameters of a deployed fiber.
abstract: 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.
authors.affiliation: Physics Department, New York City College of Technology, Brooklyn, NY 11201, USA. lleng@citytech.cuny.edu
authors.forename: Lufeng
authors.initials: L
authors.lastname: Leng
authors.forename: Thinh
authors.initials: T
authors.lastname: Le
mesh_terms: D000669:Amplifiers, Electronic; D017076:Computer-Aided Design; D004867:Equipment Design; D006801:Humans; D054023:Lasers, Semiconductor; D055100:Optical Fibers; D013059:Spectrum Analysis, Raman / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*