Title :
Recovery time scales in quantum dot devices
Author :
Viktorov, E.A. ; Erneux, Th ; Mandel, P. ; Piwonski, T. ; Pulka, J. ; Madden, G. ; Houlihan, J. ; Huyet, G.
Author_Institution :
Opt. Nonlineaire Theor., Univ. Libre de Bruxelles, Brussels, Belgium
Abstract :
The physics of quantum dot (QD) based optical devices has been studied intensively due to their interesting blend of atomic and solid state properties. Recently, attention has focused on their amplification and absorption properties and has led to QD materials finding favour in such applications as monolithic mode-locked lasers, semiconductor optical amplifiers (SOAs), electroabsorption modulators and saturable absorber mirrors. The authors present experimental results together with an analytical analysis of the nonlinear recovery of QD based SOAs in forward and reversed bias modes. The study reveals the role of capture and escape processes in the formation of two stages of recovery.
Keywords :
quantum dot lasers; semiconductor optical amplifiers; capture process; escape process; quantum dot devices; semiconductor optical amplifiers; time scale recovery; Absorption; Atom optics; Atomic beams; Optical devices; Optical materials; Physics; Quantum dot lasers; Quantum dots; Semiconductor materials; Solid state circuits;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5191460
