University of Surrey

Test tubes in the lab Research in the ATI Dance Research

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). ISSN 00036951

[img]
Preview
PDF
fulltext.pdf

Download (209Kb)

Abstract

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
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.
Divisions: Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:07
Last Modified: 23 Sep 2013 18:26
URI: http://epubs.surrey.ac.uk/id/eprint/220

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800