Temporal dynamics of the alpha factor in semiconductor optical amplifiers

Wang, J; Maitra, A; Poulton, CG; Freude, W; Leuthold, J

Temporal dynamics of the alpha factor in semiconductor optical amplifiers

Wang, J Maitra, A Poulton, CG

Freude, W Leuthold, J

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Publication Type:: Journal Article
Citation:: Journal of Lightwave Technology, 2007, 25 (3), pp. 891 - 900
Issue Date:: 2007-03-01

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Field	Value	Language
dc.contributor.author	Wang, J	en_US
dc.contributor.author	Maitra, A	en_US
dc.contributor.author	Poulton, CG https://orcid.org/0000-0002-2707-3424	en_US
dc.contributor.author	Freude, W	en_US
dc.contributor.author	Leuthold, J	en_US
dc.date.issued	2007-03-01	en_US
dc.identifier.citation	Journal of Lightwave Technology, 2007, 25 (3), pp. 891 - 900	en_US
dc.identifier.issn	0733-8724	en_US
dc.identifier.uri	http://hdl.handle.net/10453/774
dc.description.abstract	The temporal evolution of the α-factor during pump-probe experiments in semiconductor optical amplifiers (SOAs) is not constant but varies strongly with time. It even takes on negative values for short periods of time. As a consequence, cross-phase modulation (XPM) effects usually lag behind cross-gain modulation effects by several picoseconds. This delay has important consequences for ultrafast operation of all-optical devices based on SOAs. It actually means that not every scheme will be suited for ultrafast operation. In order to properly model the XPM and phase variations within an SOA during a pump-probe experiment, a new parameterization for the α-factor is introduced. Inclusion of this model leads to an excellent agreement with the recent 160-Gb/s experiments for both phase and amplitude evolutions of the respective signals with time. © 2007 IEEE.	en_US
dc.relation.ispartof	Journal of Lightwave Technology	en_US
dc.relation.isbasedon	10.1109/JLT.2006.890439	en_US
dc.subject.classification	Optoelectronics & Photonics	en_US
dc.title	Temporal dynamics of the alpha factor in semiconductor optical amplifiers	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	25	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	25	en_US

Abstract:

The temporal evolution of the α-factor during pump-probe experiments in semiconductor optical amplifiers (SOAs) is not constant but varies strongly with time. It even takes on negative values for short periods of time. As a consequence, cross-phase modulation (XPM) effects usually lag behind cross-gain modulation effects by several picoseconds. This delay has important consequences for ultrafast operation of all-optical devices based on SOAs. It actually means that not every scheme will be suited for ultrafast operation. In order to properly model the XPM and phase variations within an SOA during a pump-probe experiment, a new parameterization for the α-factor is introduced. Inclusion of this model leads to an excellent agreement with the recent 160-Gb/s experiments for both phase and amplitude evolutions of the respective signals with time. © 2007 IEEE.

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http://hdl.handle.net/10453/774