Title :
Quantum-Cascade Lasers with One-Well Injector Operating at 1.59 THz (λ = 188.5 μm)
Author :
Kumar, Sushil ; Qin, Qi ; Williams, Benjamin S. ; Hu, Qing ; Wasilewski, Z.R. ; Wu, X. ; Liu, H.C.
Author_Institution :
Massachusetts Inst. of Technol., Cambridge
Abstract :
We report quantum-cascade lasers operating at 1.59 THz using a single quantum-well injector, which significantly reduces photon re-absorption losses in the active-region. Continuous- wave operation up to 71 K, and >0.65mW optical-power at 30 K is demonstrated.
Keywords :
optical losses; quantum cascade lasers; quantum wells; active region; continuous-wave operation; frequency 1.59 THz; optical power; photon re-absorption loss reduction; quantum cascade lasers; single quantum-well injector; temperature 30 K; wavelength 188.5 mum; Councils; Electrons; Frequency; Laboratories; Laser theory; Quantum cascade lasers; Quantum computing; Quantum well lasers; Resonance; Semiconductor lasers;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4453211
