Title :
High-temperature operation of THz quantum-cascade lasers
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
We have developed THz quantum-cascade lasers based on resonant-phonon-assisted depopulation and using metal-metal waveguides for mode confinement. The band diagram of the QCL structure is illustrated. Based on the combination of these two unique features, many THz QCLs with record performance, including a maximum pulsed operating temperature at 147 K, a maximum cw operating temperature at 97 K were developed.
Keywords :
high-temperature techniques; laser beams; laser modes; optical waveguides; quantum cascade lasers; 147 K; 97 K; QCL structure; THz quantum-cascade laser; band diagram; high-temperature operation; metal-metal waveguide; mode confinement; resonant-phonon-assisted depopulation; Frequency; Laser modes; Laser transitions; Magnetic fields; Power lasers; Quantum cascade lasers; Resonance; Semiconductor lasers; Temperature; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1567882
