Title :
Single-Mode Surface-Emitting Terahertz Quantum-Cascade Lasers Operating up to ~ 150 K
Author :
Kumar, Sushil ; Williams, Benjamin S. ; Qin, Qi ; Lee, Alan W M ; Hu, Qing ; Reno, John L.
Author_Institution :
Massachusetts Inst. of Technol., Cambridge
Abstract :
We report robust single-mode operation of surface-emitting distributed-feedback terahertz quantum-cascade lasers in metal-metal waveguides. Grating devices span a range of 0.35THz around 2.9THz, with 149K maximum pulsed operating temperature, and >6mW continuous-wave power at 5K.
Keywords :
distributed feedback lasers; laser modes; quantum cascade lasers; submillimetre wave lasers; surface emitting lasers; waveguide lasers; distributed-feedback lasers; grating devices; metal-metal waveguides; single-mode operation; single-mode surface-emitting lasers; temperature 149 K; temperature 5 K; terahertz quantum-cascade lasers; Gratings; Laser beams; Laser modes; Optical surface waves; Optical waveguides; Power generation; Quantum cascade lasers; Surface emitting lasers; Surface waves; Waveguide 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.2007.4453617
