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Cross-channel interference due to wavelength drift of tunable lasers in DWDM networks

Connolly, Eoin M. and Smyth, Frank and Mishra, A.K. and Kaszubowska-Anandarajah, Aleksandra and Barry, Liam P. (2007) Cross-channel interference due to wavelength drift of tunable lasers in DWDM networks. IEEE Photonics Technology Letters, 19 (8). pp. 616-618. ISSN 1041-1135

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Abstract

The authors present an investigation of the wavelength stability of a tunable laser (TL) transmitter and its impact on the performance of a 2.5-Gb/s dense wavelength-division-multiplexed (DWDM) system. Performance of a DWDM system, employing such a TL, is characterized by examining the cross-channel interference caused by this drift when the channel spacing is set to 12.5 and 25 GHz. Results obtained show that the wavelength drift affects the system performance by introducing an error floor in the case of 12.5-GHz spacing. This error floor can be mitigated by increasing the blanking time of the TL during the channel transition, in order to reduce the wavelength drift

Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:Sampled-grating distributed Bragg reflector; tunable lasers (TLs); ultradense wavelength-division multiplexing (UDWDM); wavelength drift measurement;
Subjects:Engineering > Optical communication
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Initiatives and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Publisher:Institute of Electrical and Electronics Engineers
Official URL:http://dx.doi.org/10.1109/LPT.2007.894311
Copyright Information:©2007 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.
ID Code:2277
Deposited On:19 Jan 2009 11:58 by DORAS Administrator. Last Modified 05 Mar 2009 14:21

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