Title :
Frequency-tunable external cavity terahertz quantum cascade laser
Author :
Lee, Alan W M ; Qin, Qi ; Kumar, Sushil ; Hu, Qing ; Reno, John L.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
We demonstrate a tunable terahertz quantum cascade laser using an abutted silicon lens and grating feedback. The device tunes discontinuously over 160 GHz with a center frequency of 4.4 THz.
Keywords :
diffraction gratings; lenses; quantum cascade lasers; terahertz wave devices; abutted silicon lens; center frequency; external cavity; frequency 160 GHz; frequency 4.4 THz; frequency-tunable; grating feedback; terahertz quantum cascade laser; Frequency; Gratings; Laser tuning; Lenses; Optical feedback; Optical receivers; Optical refraction; Optical sensors; Optical waveguides; Quantum cascade lasers; (140.3070) Infrared and far-infrared lasers;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
