Title :
High-Power Operation of Quantum Cascade Lasers Endured Prolonged Air-Oxidation
Author :
Shao, Ye ; Liu, Feng-Qi ; Li, Lu ; Lu, Xiu-Zhen ; Liu, Jun-Qi ; Wang, Zhan-Guo
Author_Institution :
Chinese Acad. of Sci., Beijing
Abstract :
High-power strain-compensated In1-xGaxAs/In1-yAlyAs quantum cascade lasers (lambda~5.5 mum) are demonstrated. Peak power at least 1.2 W per facet for a 32 mum times 2 mm uncoated laser stored in ambient condition for 240 days, is obtained at 80 K. Considering the collection efficiency of 60%, the actual output power is 4 W at this temperature.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; indium compounds; oxidation; quantum cascade lasers; In1-xGaxAs-In1-yAlyAs; high-power strain-compensated lasers; output power; prolonged air-oxidation; quantum cascade lasers; Degradation; Face detection; Optical devices; Optical pulses; Oxidation; Power generation; Protection; Pulse measurements; Quantum cascade lasers; Waveguide lasers;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368249
