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Applied constant gain amplification in circulating loop experiments

Smyth, Frank and Kilper, Daniel C. and Chandrasekhar, Sethumadhavan and Barry, Liam P. (2009) Applied constant gain amplification in circulating loop experiments. Journal of Lightwave Technology, 27 (21). pp. 4686-4696. ISSN 0733-8724

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Abstract

The reconfiguration of channel or wavelength routes in optically transparent mesh networks can lead to deviations in channel power that may impact transmission performance. A new experimental approach, applied constant gain, is used to maintain constant gain in a circulating loop enabling the study of gain error effects on long-haul transmission under reconfigured channel loading. Using this technique we examine a number of channel configurations and system tuning operations for both full-span dispersion-compensated and optimized dispersion-managed systems. For each system design, large power divergence was observed with a maximum of 15 dB at 2240 km, when switching was implemented without additional system tuning. For a bit error rate of 10-3, the maximum number of loop circulations was reduced by up to 33%.

Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:erbium; optical fibre amplifiers; optical fibre dispersion; optical tuning; wavelength division multiplexing;
Subjects:Engineering > Optical communication
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Publisher:Institute of Electrical and Electronics Engineers
Official URL:http://dx.doi.org/10.1109/JLT.2009.2025606
Copyright Information:©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Funders:Science Foundation Ireland
ID Code:15552
Deposited On:26 Jul 2010 13:00 by DORAS Administrator. Last Modified 26 Jul 2010 13:00

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