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Fast tunable lasers in radio-over-fiber access networks

Kaszubowska-Anandarajah, Aleksandra and Connolly, Eoin M. and Barry, Liam P. and McDonald, David (2006) Fast tunable lasers in radio-over-fiber access networks. In: ICTON 2006 - 8th International Conference on Transparent Optical Networks, 18-22 June 2006, Nottingham, UK.

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Abstract

The authors present a novel concept of employing optical wavelength packet switching (WPS) in radio-over-fiber (RoF) access networks. The Central Station is equipped with a fast tunable laser (TL), which is externally modulated with a data signal upconverted to a radio frequency. The information transmitted over the network is encoded onto different wavelengths depending on the destination base station (determined by an optical band-pass filter at that BS). Routing of traffic could be performed on a packet-by-packet basis. In such a system dynamic bandwidth allocation could be realised by varying the time the TL transmits on a particular wavelength, depending on the amount of data that needs to be sent from/to the BS. The feasibility of employing TLs in the realisation of such a system is verified by building a basic WPS RoF system. The measurements of the cross-channel interference due to the TL wavelength instability and drift are also presented. No power penalty was observed due to switching of the laser, suggesting that RoF systems based on TLs are a feasible solution to the last mile problem

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:radio-over-fiber; tunable laser; optical packet switching; external modulation; fiber Bragg grating;
Subjects:Engineering > Optical communication
Physical Sciences > Lasers
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/ICTON.2006.248282
Copyright Information:©2006 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:2287
Deposited On:16 Jan 2009 16:55 by DORAS Administrator. Last Modified 05 Mar 2009 14:55

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