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Dynamic Amplitude-Phase Coupling in Quantum-Dot Lasers

Gehrig, E and Hess, O (2005) Dynamic Amplitude-Phase Coupling in Quantum-Dot Lasers Applied Physics Letters, 86 (20).


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The well-known alpha-factor is a convenient measure to describe the magnitude of the amplitude-phase coupling of semiconductor lasers. But is the alpha-factor really a parameter? First-principle simulations of InGaAs quantum-dot lasers and amplifiers show that in spatially extended quantum-dot laser structures, the amplitude phase coupling is far from being a constant. Our computation of the alpha-factor demonstrates the same large and excitation-dependent variation and scatter as corresponding to experimentally determined values. Our results therefore provide a key to the interpretation and give a measure of applicability of the alpha-factor for the classification of quantum-dot lasers. (c) 2005 American Institute of Physics.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Gehrig, E
Date : 1 January 2005
DOI : 10.1063/1.1931059
Additional Information : Published in <i>Applied Physics Letters,</i> Vol. 86, Iss. 20. Copyright 2005 American Institute of Physics. Click <a href=>here</a> to access the journal's webpage.
Depositing User : Mr Adam Field
Date Deposited : 27 May 2010 14:07
Last Modified : 31 Oct 2017 13:57

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