CUED Publications database

Modeling of nonlinearity-compensated optical communication systems considering second-order signal-noise interactions

Shevchenko, NA and Xu, T and Lavery, D and Liga, G and Ives, DJ and Killey, RI and Bayvel, P (2017) Modeling of nonlinearity-compensated optical communication systems considering second-order signal-noise interactions. Optics Letters, 42. pp. 3351-3354. ISSN 0146-9592

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Abstract

An analytical model considering modulation-dependent nonlinear effects and second-order interactions between signal and optical amplifier noise is presented for Nyquist-spaced wavelength-division-multiplexing optical communication systems. System performance of dual-polarization modulation formats, such as DP-QPSK, DP-16QAM, and DP-64QAM, is investigated using both the analytical model and numerical simulations. A good agreement between analytical and numerical results shows that, in the case of full-field nonlinearity compensation, accounting for second-order interactions becomes essential to predict system performance of both single- and multi-channel systems at optimum launched powers and beyond. This effect is validated via numerical simulations for signal bandwidths up to ~1 THz.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 22 Sep 2017 20:10
Last Modified: 13 Apr 2021 10:20
DOI: 10.1364/OL.42.003351