Title :
Quantum cascade ring lasers: Unidirectional operation and coupled ring tuning
Author :
Nshii, C. ; Ironside, C.N. ; Sorel, M. ; Slight, T.J. ; Zhang, S.Y. ; Revin, D.G. ; Cockburn, J.W.
Author_Institution :
Sch. of Eng., Univ. of Glasgow, Glasgow, UK
Abstract :
Quantum cascade lasers (QCLs) are semiconductor lasers based on intersubband transitions in quantum wells. Semiconductor lasers in ring format do not need cleaved facets or gratings to achieve optical feedback required for lasing and could support either bidirectional or unidirectional operation. In this paper, we report on QCL in this ring format for unidirectional operation and coupled ring tuning.
Keywords :
quantum cascade lasers; ring lasers; semiconductor lasers; coupled ring tuning; intersubband transitions; quantum cascade ring lasers; semiconductor lasers; unidirectional operation; Laser tuning; Optical waveguides; Quantum cascade lasers; Ring lasers; Waveguide lasers;
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.2011.5942564
