Title :
Unidirectional operation of quantum-dot ring lasers
Author :
Cao, Hongjun ; Deng, Hui ; Ling, Hai ; Liu, Chiyu ; Smagley, Vladimir A. ; Caldwell, Robert B. ; Smolyakov, Gennady A. ; Gray, Allen L. ; Lester, Luke F. ; Eliseev, Petr G. ; Osinski, M.
Author_Institution :
Center for High Technol. Mater., New Mexico Univ., Albuquerque, NM, USA
Abstract :
First monolithically integrated ridge-waveguide InAs/InGaAs quantum-dot ring lasers are fabricated and characterized. Enhanced by a forward biased S-section waveguide, stable traveling-wave (unidirectional) operation with record suppression ratio of counterpropagating waves approaching 30 dB is demonstrated.
Keywords :
integrated optoelectronics; laser cavity resonators; laser stability; monolithic integrated circuits; quantum dot lasers; ring lasers; waveguide lasers; InAs-InGaAs; InAs/InGaAs lasers; counterpropagating waves; forward biased S-section waveguide; monolithically integrated; quantum-dot lasers; record suppression ratio; ridge-waveguide lasers; ring lasers; stable traveling-wave operation; unidirectional laser operation; Indium gallium arsenide; Laser beam cutting; Laser stability; Optical waveguides; Photodiodes; Quantum dots; Ring lasers; Semiconductor lasers; Threshold current; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics, 2005. (CLEO). Conference on
Print_ISBN :
1-55752-795-4
DOI :
10.1109/CLEO.2005.202277
