Abstract
We report substantially improved performance of high-power quantum cascade lasers (QCLs) by using epitaxial-side-down mounting that provides superior heat dissipation properties. We used aluminum nitride as the heatsink material and gold-tin eutectic solder. We have obtained continuous wave power output of 450 mW at 20°C from mid-IR QCLs. The improved thermal management achieved with epitaxial-side-down mounting combined with a highly manufacturable and scalable assembly process should permit incorporation of mid-IR QCLs in reliable instrumentation.
Original language | English (US) |
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Pages (from-to) | 4831-4835 |
Number of pages | 5 |
Journal | Proceedings of the National Academy of Sciences of the United States of America |
Volume | 103 |
Issue number | 13 |
DOIs | |
State | Published - Mar 28 2006 |
Keywords
- Continuous wave operation
- High-power lasers
- Mid-IR semiconductor lasers
- Room temperature operation
ASJC Scopus subject areas
- General