CUED Publications database

Characterization of long-haul 112Gbit/s PDMQAM-16 transmission with and without digital nonlinearity compensation

Makovejs, S and Miliar, DS and Lavery, D and Behrens, C and Killey, RI and Savory, SJ and Bayvel, P (2010) Characterization of long-haul 112Gbit/s PDMQAM-16 transmission with and without digital nonlinearity compensation. Optics Express, 18. pp. 12939-12947.

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Abstract

In this paper long-haul, single channel, polarization multiplexed 16-state quadrature amplitude modulation (PDM-QAM-16) transmission at 112Gbit/s is investigated. Novel digital signal processing techniques are used to perform carrier phase estimation and symbol estimation, in combination with nonlinear digital backpropagation. The results obtained demonstrate that the use of digital nonlinear backpropagation increases the optimum launch power from -4dBm to -1dBm with a consequent increase in maximum reach from 1440km to 2400km, which is a record transmission distance for QAM-16 reported to date for an SMF link with EDFAs only. Furthermore, experimental measurements are supported by simulations, based on the link used in the experiment. © 2010 Optical Society of America.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:20
Last Modified: 10 Apr 2021 00:43
DOI: 10.1364/OE.18.012939