High-power operation of quantum cascade lasers endured prolonged air-oxidation
- Shao, Y (Shao, Ye)
- Liu, FQ (Liu, Feng-Qi)
- Li, L (Li, Lu)
- Lu, XZ (Lu, Xiu-Zhen)
- Liu, JQ (Liu, Jun-Qi)
- Wang, ZG (Wang, Zhan-Guo)
- Liu, FQ, Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, PO Box 912, Beijing 100083, Peoples R China.
Publication date
January 2006
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
High-power strain-compensated In1-xGaxAs/ln(1-y)Al(y)As quantum cascade lasers (lambda similar to 5.5 mu m) are demonstrated. Peak power at least 1.2W per facet for a 32 mu mx2mm 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 4W at this temperature
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