Title :
Towards polarization insensitive semiconductor optical amplifiers using InAs/GaAs columnar quantum dots
Author :
Ridha, Philipp ; Li, Lianhe ; Fiore, Andrea ; Patriarche, Gilles ; Mexis, Meletios ; Smowton, Peter M. ; Andrzejewski, Janusz ; Sek, Grzegorz ; Misiewicz, Jan
Author_Institution :
Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne
Abstract :
We report columnar quantum dots (CQDs) with extremely large aspect ratios, showing nearly polarization-insensitive electroluminescence. A systematic experimental and theoretical investigation of their polarization properties as a function of aspect ratio is also reported.
Keywords :
III-V semiconductors; electroluminescence; gallium arsenide; indium compounds; light polarisation; quantum dot lasers; semiconductor optical amplifiers; InAs-GaAs; columnar quantum dots; electroluminescence; polarization insensitivity; semiconductor optical amplifiers; Capacitive sensors; Current density; Electroluminescence; Gallium arsenide; Optical polarization; Quantum dots; Quantum mechanics; Semiconductor optical amplifiers; Shape; Tellurium; (250.5590) Quantum-dot devices; (250.5980) Semiconductor optical amplifiers;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
