Title :
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
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;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4577-0533-5
Electronic_ISBN :
Pending
DOI :
10.1109/CLEOE.2011.5942566
