Strain-balanced quantum cascade lasers: influence of growth temperature on interface roughness and laser performance

Author

Bismuto, Alfredo ; Terazzi, Romain ; Beck, Mattias ; Faist, Jerome

Author_Institution

Inst. for Quantum Electron., ETH-Zurich, Zürich, Switzerland

fYear

2011

fDate

22-26 May 2011

Firstpage

1

Lastpage

1

Abstract

The influence of interface roughness (IFR) on laser performance is complex since it does not only influence the broadening but also the intersubband lifetime. Trying to explore experimentally this dependence, the performances of strain-balanced quantum cascade lasers were investigated as a function of the substrate temperature during epitaxial growth. The structure design used for this work was already presented elsewhere.

Keywords

epitaxial growth; integrated optics; interface roughness; quantum cascade lasers; spectral line broadening; epitaxial growth; interface roughness; intersubband lifetime; laser performance; strain-balanced quantum cascade lasers; structural design; substrate temperature; Correlation; Performance evaluation; Quantum cascade lasers; Semiconductor process modeling; Substrates; Temperature dependence; Threshold current;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference

Conference_Location

Munich

ISSN

Pending

Print_ISBN

978-1-4577-0533-5

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/CLEOE.2011.5942566

Filename

5942566