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Optical Engineering • new

Spectral bandwidth-efficient four-wave mixing minimization scheme for C-band dense wavelength division multiplexed system
Author(s): Gurpreet Singh; Maninder Lal Singh
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Paper Abstract

A hybrid suboptimum channel separation (S-CS) scheme is presented. The distinct feature of the scheme is that it selectively minimizes the four-wave mixing (FWM) effect on the worst-affected channels and enhances the performance and spectral bandwidth efficiency in a controlled way. The scheme is helpful in the precise adjustment of tradeoff between immunity from FWM and spectral bandwidth requirement. The simulative comparison of the S-CS with optimum unequal channel separation (OUCS) and equal channel separation (ECS) schemes is performed to show its effectiveness. A dense wavelength division multiplexed system having a total capacity of 1.64  Tb/s in C band is implemented using the presented scheme. A maximum of 82 channels spaced at minimum CS of 50 GHz operating at a data rate of 20  Gb/s for each of the channels is realized using a S-CS (n=12) hybrid scheme. The simulations are performed in the presence of all the linear and nonlinear impairments and noises. A maximum of 480- and 300-km distances using SSMF and ITUT.G655 fibers, respectively, is realized using dispersion-compensating fibers for 82 channels. The ECS and hybrid OUCS can be realized to cover the same distances but with 73 and 79 channels, respectively, due to the realization problem and bandwidth inefficiency.

Paper Details

Date Published: 31 July 2017
PDF: 10 pages
Opt. Eng. 56(7) 076115 doi: 10.1117/1.OE.56.7.076115
Published in: Optical Engineering Volume 56, Issue 7
Show Author Affiliations
Gurpreet Singh, Guru Nanak Dev Univ. (India)
Maninder Lal Singh, Guru Nanak Dev Univ. (India)


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