DocumentCode :
1402360
Title :
Performance Analysis of Coherent 222-Gb/s NRZ PM-16QAM WDM Systems Over Long-Haul Links
Author :
Curri, V. ; Poggiolini, P. ; Carena, Andrea ; Forghieri, F.
Author_Institution :
Dipt. di Elettron., Politec. di Torino, Torino, Italy
Volume :
22
Issue :
5
fYear :
2010
fDate :
3/1/2010 12:00:00 AM
Firstpage :
266
Lastpage :
268
Abstract :
We studied by simulation the nonlinear propagation of 222-Gb/s (27.75 GBaud) wavelength-division-multiplexing coherent nonreturn-to-zero polarization-multiplexed 16 quadrature amplitude modulation systems over long-haul links, considering both standard single-mode fiber (SSMF) and nonzero dispersion-shifted fiber. Many different dispersion maps, including precompensation, were explored to try and mitigate the impact of propagation impairments. Full electronic dispersion compensation without in-line dispersion-compensating units (DCUs) granted best performance with a system reach on SSMF fiber of ten spans with a span loss 23 dB. The presence of DCUs, as in lines designed for legacy 10-Gb/s intensity-modulated direct-detection systems, enhances nonlinear propagation penalties and the use of precompensation does not grant a significant advantage. A practical reach of 500-800 km can be estimated, when system margins are factored in .
Keywords :
nonlinear optics; optical fibre dispersion; optical fibre networks; quadrature amplitude modulation; wavelength division multiplexing; bit rate 222 Gbit/s; coherent NRZ PM-16QAM WDM systems; distance 500 km to 800 km; electronic dispersion compensation; long haul links; loss 23 dB; nonlinear propagation; nonreturn-to-zero polarization multiplexed system; nonzero dispersion shifted fiber; quadrature amplitude modulation system; single mode fiber; wavelength division multiplexing system; Dispersion; Optical attenuators; Optical fiber polarization; Optical noise; Optical receivers; Optical signal processing; Performance analysis; Quadrature amplitude modulation; Signal to noise ratio; Wavelength division multiplexing; Coherent detection; dispersion compensation; dispersion management; electronic dispersion compensation (EDC); nonlinear effects; polarization-multiplexed 16 quadrature amplitude modulation (PM-16QAM) wavelength-division multiplexing (WDM);
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2009.2038282
Filename :
5405103
Link To Document :
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