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).
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.
|Divisions :||Faculty of Engineering and Physical Sciences > Physics|
|Date :||1 January 2005|
|Identification Number :||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=http://apl.aip.org/>here</a> to access the journal's webpage.|
|Depositing User :||Mr Adam Field|
|Date Deposited :||27 May 2010 14:07|
|Last Modified :||23 Sep 2013 18:26|
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