Title :
Coherent coupling of multiple transverse modes in a quantum cascade laser
Author :
Yu, Nanfang ; Diehl, Laurent ; Cubukcu, Ertugrul ; Bour, David ; Corzine, Scott ; Zhu, Jintian ; Hofler, Gloria ; Wojcik, Aleksander ; Crozier, Kenneth B. ; Belyanin, Alexey ; Capasso, Federico
Author_Institution :
Sch. of Eng. & Appl. Sci., Harvard Univ., Cambridge, MA
Abstract :
We investigate phase coherence of multi-transverse modes in quantum cascade lasers through both near- and far-field mode measurements. We explain the observed phase locking by four-wave mixing of longitudinal modes belonging to different transverse modes.
Keywords :
laser mode locking; laser modes; light coherence; multiwave mixing; quantum cascade lasers; coherent coupling; four-wave mixing; longitudinal modes; multiple transverse modes; phase locking; quantum cascade laser; transverse modes; Coherence; Four-wave mixing; Laser modes; Nonlinear optics; Optical coupling; Optical mixing; Optical refraction; Optical scattering; Phase measurement; Quantum cascade lasers; (030.4070) Modes; (140.5965) Semiconductor lasers, quantum cascade; (180.4243) Near-field microscopy; (190.4380) Nonlinear optics, four-wave mixing;
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
