Title :
Optimization study of advanced modulation formats for 10-Gb/s metropolitan networks
Author :
Zacharopoulos, I. ; Tzanakaki, A. ; Parcharidou, D. ; Tomkos, I.
Author_Institution :
High-Speed Networks & Opt. Commun. Group, Athens Inf. Technol. Center, Greece
Abstract :
A detailed study of alternative modulation formats appropriate for 10-Gb/s wavelength-division-multiplexing metropolitan area networks is performed to evaluate their tolerance to linear impairments such as optical-signal-to-noise-ratio degradation, dispersion, filter concatenation, interband/intraband crosstalk, as well as their interplay. Point-to-point links and optical add-drop multiplexer chain and ring architectures are investigated, and optimum design parameters are obtained. Through extensive sets of simulation results, it is shown that some of these formats are very tolerant to linear impairments when compared with conventional nonreturn to zero.
Keywords :
metropolitan area networks; optical crosstalk; optical fibre dispersion; optical modulation; optical noise; wavelength division multiplexing; 10 Gbit/s; dispersion; filter concatenation; interband crosstalk; intraband crosstalk; linear impairments tolerance; metropolitan networks; modulation formats; optical add-drop multiplexer; optical-signal-to-noise ratio degradation; wavelength division multiplexing; Degradation; Metropolitan area networks; Nonlinear filters; Optical add-drop multiplexers; Optical crosstalk; Optical design; Optical fiber networks; Optical filters; Optical modulation; Performance evaluation; Metropolitan area networks (MANs); modulation formats; signal impairments;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2004.834981
