Abstract
The effects of cavity length on high-temperature high-power continuous wave (cw) characteristics of λ=6 μm, 15 μm wide quantum cascade lasers (QCL) were studied. It was found that for a high reflectivity (HR) coated 3 mm long laser, the maximum cw operating temperature could be achieved up to 313 K with a 17 mW output power. A high cw output power of 213 mW was also obtained for a HR coated 15 μm wide and 4 mm long laser at 298 K. The thermal resistance was also analyzed at temperatures above 283 K for HR coated lasers with different cavities.
Original language | English (US) |
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Pages (from-to) | 5136-5138 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 83 |
Issue number | 25 |
DOIs | |
State | Published - Dec 22 2003 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)