Title :
Optimization of Rayleigh-Limited WDM-PONs With Reflective ONU by MUX Positioning and Optimal ONU Gain
Author :
López, Eduardo Tommy ; Lázaro, J.A. ; Arellano, C. ; Polo, V. ; Prat, J.
Author_Institution :
Opt. Commun. Group (GCO), Univ. Politec. de Catalunya (UPC), Barcelona, Spain
Abstract :
In this work, the influence of the distribution element position and the reflective optical network unit (ONU) gain in wavelength-division-multiplexing passive optical networks are reported. After the theoretical and experimental analysis, it is determined that the best crosstalk-to-signal ratio is achieved if the multiplexer is placed either in the ONU or optical light termination vicinity, and the ONU gain has a new optimum value depending on the position. Also, it is demonstrated that Rayleigh backscattering is generally irrelevant in downstream transmission.
Keywords :
Rayleigh scattering; backscatter; multiplexing equipment; optical fibre networks; wavelength division multiplexing; Rayleigh backscattering; Rayleigh-limited WDM-PON; crosstalk-to-signal ratio; distribution element position; downstream transmission; multiplexer positioning; optical fiber communication; optical light termination; passive optical networks; reflective optical network unit gain; wavelength division multiplexing; Access networks; Rayleigh scattering; optical fiber communication; passive optical networks (PONs); wavelength-division multiplexing (WDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2035326
