Title :
Quantum cascade microlasers with highly deformed spiral-resonators
Author :
Qu, Dongxia ; Cendejas, Richard ; Liu, Zhijun ; Gmachl, Claire ; Towner, Fred
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ
Abstract :
We study the spectral characteristics of spiral-shaped micro-cylindrical quantum cascade lasers with various spiral geometries. With medium deformations and notch angles, our lasers can achieve single-mode emission with a side-mode suppression ratio over 30 dB.
Keywords :
laser cavity resonators; laser modes; quantum cascade lasers; medium deformations; microcylindrical quantum cascade lasers; notch angles; quantum cascade microlasers; spectral characteristics; spiral geometries; spiral resonators; Geometrical optics; Laser modes; Laser transitions; Optical propagation; Optical pulses; Optical resonators; Quantum cascade lasers; Semiconductor lasers; Spirals; Threshold current; (140.3070) Infrared and far-infrared lasers; (140.3410) Laser resonators; (140.4780) Optical resonators; (140.5965) Semiconductor lasers, quantum cascade;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
