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Investigation of pulse pedestal and dynamic chirp formation on picosecond pulses after propagation through an SOA

Clarke, Aisling M. and Connelly, Michael J. and Anandarajah, Prince M. and Barry, Liam P. and Reid, Douglas A. (2005) Investigation of pulse pedestal and dynamic chirp formation on picosecond pulses after propagation through an SOA. IEEE Photonics Technology Letters, 17 (9). pp. 1800-1802. ISSN 1041-1135

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The authors investigate the propagation of picosecond pulses through semiconductor optical amplifiers using the measurement technique of frequency resolved optical gating. The work shows the generation of significant pulse pedestals and frequency chirp across the optical pulses, which initially have a duration of 2 ps. As the input peak power of the optical pulses is increased from 2.4 to 80 mW, the pulse pedestals increased by 20 dB and the chirp became significantly more nonlinear. The generated pedestals and the nonlinear output chirp may cause serious degradation in high-speed communications systems employing wavelength-division-multiplexing and optical time-division-multiplexing techniques.

Item Type:Article (Published)
Uncontrolled Keywords:Frequency chirp; optical communications; optical pulse measurements; semiconductor optical amplifier (SOA);
Subjects:Engineering > Optical communication
Physical Sciences > Semiconductors
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:Copyright © 2005 IEEE. Reprinted from IEEE Photonics Technology Letters.This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the Dublin City University's products or services. Internal or 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 must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
ID Code:170
Deposited On:28 Jan 2008 by DORAS Administrator. Last Modified 02 Feb 2009 13:26

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