Spectral bandwidth-efficient four-wave mixing minimization scheme for C-band dense wavelength division multiplexed system

Gurpreet Singh; Maninder Lal Singh

doi:10.1117/1.OE.56.7.076115

31 July 2017 Spectral bandwidth-efficient four-wave mixing minimization scheme for C-band dense wavelength division multiplexed system

Gurpreet Singh, Maninder Lal Singh

Author Affiliations +

Optical Engineering, Vol. 56, Issue 7, 076115 (July 2017). https://doi.org/10.1117/1.OE.56.7.076115

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.

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Gurpreet Singh and Maninder Lal Singh "Spectral bandwidth-efficient four-wave mixing minimization scheme for C-band dense wavelength division multiplexed system," Optical Engineering 56(7), 076115 (31 July 2017). https://doi.org/10.1117/1.OE.56.7.076115

Received: 16 March 2017; Accepted: 29 June 2017; Published: 31 July 2017

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