Evaluation of correlative coding and DP-16QAM n-channel 112Gbit/s coherent transmission:Digital non-linear compensation perspective

Asif, Rameez, Lin, Chien Yu, Holtmannspoetter, Michael and Schmauss, Bernhard (2013) Evaluation of correlative coding and DP-16QAM n-channel 112Gbit/s coherent transmission:Digital non-linear compensation perspective. Optics Express, 21 (1). pp. 781-788. ISSN 1094-4087

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Abstract

We numerically report on the complexity reduction of digital backward propagation (DBP) by utilizing correlative encoded transmission (dual-polarization quadrature duobinary) at a bit-rate of 112Gbit/s over 1640km fibe link. The single channel (N=1) and multi-channel (N=10) transmission performances are compared in this paper. In case of multichannel system, 10 transmitters are multiplexed with 25GHz channel spacing. The fibe link consists of Large Ae f f Pure-Silica core fibe with 20 spans of 82km each. No in-line optical dispersion compensator is employed in the link. The system performances are evaluated by monitoring the bit-error-ratio and the forward error correction limit corresponds to bit-error-ratio of 3.8×103. The DBP algorithm is implemented after the coherent detection and is based on the logarithmic step-size based splitstep Fourier method. The results depict that dual-polarization quadrature duobinary can be used to transmit 112Gbit/s signals with an spectral efficien y of 4-b/s/Hz, but at the same time has a higher tolerance to nonlinear transmission impairments. By utilizing dual-polarization quadrature duobinary modulation, comparative system performance with respect to dual-polarization 16-quadrature amplitude modulation transmission can be achieved with 60% less computations and with a step-size of 205km.

Item Type: Article
Uncontrolled Keywords: atomic and molecular physics, and optics ,/dk/atira/pure/subjectarea/asjc/3100/3107
Faculty \ School: Faculty of Science > School of Computing Sciences
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 08 Sep 2022 08:31
Last Modified: 23 Sep 2022 02:48
URI: https://ueaeprints.uea.ac.uk/id/eprint/87906
DOI: 10.1364/OE.21.000781

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