Enlighten
Research publications by members of the University of Glasgow
home > services > Enlighten

Separation of coherent and incoherent nonlinearities in a heterodyne pump-probe experiment

Borri, Paola, Romstad, Francis, Langbein, Wolfgang, Kelly, Anthony, Mork, J., and Hvam, Jorn (2000) Separation of coherent and incoherent nonlinearities in a heterodyne pump-probe experiment. Optics Express, 7 (3). pp. 107-112. ISSN 1094-4087 (doi:10.1364/OE.7.000107)

Full text not currently available from Enlighten.

Publisher's URL: http://dx.doi.org/10.1364/OE.7.000107

Abstract

We demonstrate that the transient coherent nonlinearity (coherent artifact) affecting the pump-probe response of semiconductor optical amplifiers can be experimentally separated from the incoherent transient. The technique is based on measuring the mirror component of the coherent artifact which is a background-free four--wave mixing signal at a different frequency with respect to the transmitted probe in a heterodyne detection scheme. Measurements on amplifiers of different length reveal strong deviations from the commonly expected symmetric shape of the coherent artifact in case of long waveguides.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Kelly, Dr Anthony
Authors: Borri, Paola, Romstad, Francis, Langbein, Wolfgang, Kelly, Anthony, Mork, J., and Hvam, Jorn
Subjects:T Technology > T Technology (General)
Q Science > QC Physics
College/School:College of Science and Engineering > School of Engineering > James Watt Nanofabrication Centre
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN:1094-4087
ISSN (Online):1094-4087

University Staff: Request a correction | Enlighten Editors: Update this record