Title :
Growth studies of quantum cascade lasers with current-blocking structures
Author :
Cheng, Liwei ; Ji, Xiaoming ; Choa, Fow-Sen ; Liu, Zhijun ; Gmachl, Claire F. ; Fan, Jeny ; Wang, Xiaojun ; Leavitt, Rich ; Bruno, John ; Bradshaw, John
Author_Institution :
Department of Computer Science and Electrical Engineering, University of Maryland, Baltimore, 21250, USA
Abstract :
Buried-heterosturcture regrowths have very significant impact on quantum-cascade-laser (QCL) threshold, output power, and reliability. We report detailed BH regrowth studies on QCLs along different crystal orientations. Low-leakage blocking layers were successfully developed for high-performance QCLs.
Keywords :
Materials science and technology; Optical waveguides; Power generation; Quantum cascade lasers; Quantum computing; Semiconductor lasers; Semiconductor waveguides; Telecommunications; Temperature; Waveguide lasers;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431369
