Borri, P., Romstad, F., Langbein, W., Kelly, A. , Mork, J. and Hvam, J. (2000) Separation of coherent and incoherent nonlinearities in a heterodyne pump-probe experiment. Optics Express, 7(3), pp. 107-112. (doi: 10.1364/OE.7.000107)
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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: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Kelly, Professor Anthony |
Authors: | Borri, P., Romstad, F., Langbein, W., Kelly, A., Mork, J., and Hvam, J. |
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 |
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