DocumentCode
780813
Title
Free-carrier effect on index change in 1.3 μm quantum-dot lasers
Author
Hegarty, S.P. ; Corbett, B. ; McInerney, J.G. ; Huyet, G.
Author_Institution
Phys. Dept., Tyndall Nat. Inst., Cork, Ireland
Volume
41
Issue
7
fYear
2005
fDate
3/31/2005 12:00:00 AM
Firstpage
416
Lastpage
418
Abstract
Below threshold measurements of the carrier induced refractive index change in 1.3 μm quantum-dot lasers at resonance and also below bandgap were carried out. It is demonstrated that free-carrier absorption contributes approximately half the total index change, and that its relative contribution is a function of device length. This result gives a lower bound to phase-amplitude coupling in quantum-dot lasers.
Keywords
absorption coefficients; quantum dot lasers; refractive index; 1.3 micron; device length; free-carrier absorption; free-carrier effect; phase-amplitude coupling; quantum-dot lasers; refractive index change;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20050010
Filename
1421236
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