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Discrete mode lasers for applications in access networks

Kaszubowska-Anandarajah, Aleksandra and Barry, Liam P. and Anandarajah, Prince M. and Guignard, Celine and Kelly, Brian and O'Gorman, J. (2007) Discrete mode lasers for applications in access networks. In: ICTON 2007 - 9th International Conference on Transparent Optical Networks, 1-5 July 2007, Rome, Italy.

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Fast development of the modern telecommunication networks such as fiber-to-the-home or radio-over-fiber systems require an inexpensive yet reliable optical transmitter for electro-optic conversion. Such devices should be able to generate stable, single moded optical signals suitable for athermal operation. Discrete Mode Lasers (DMLs) are able to fulfill all the above-mentioned requirements with the added benefit of low sensitivity to optical feedback. DMLs are essentially Fabry-Perot lasers in which the refractive index is modified by introducing perturbations along very small sections of the laser cavity. These modifications result in a single mode laser output with a very narrow linewidth (order of 400 kHz). In this paper, we demonstrate how a DML can outperform the commonly used/commercially available DFB lasers in terms of linewidth, sensitivity to optical feedback and transmission performance in the presence of feedback.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
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:
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:2324
Deposited On:19 Jan 2009 15:02 by DORAS Administrator. Last Modified 20 Feb 2017 16:52

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