Abstract
We demonstrate very high wall plug efficiency (WPE) of mid-infrared quantum cascade lasers (QCLs) in low temperature pulsed mode operation (53%), room temperature pulsed mode operation (23%), and room temperature continuous wave operation (18%). All of these values are the highest to date for any QCLs. The optimization of WPE takes the route of understanding the limiting factors of each sub-efficiency, exploring new designs to overcome the limiting factor, and constantly improving the material quality.
Original language | English (US) |
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Title of host publication | Quantum Sensing and Nanophotonic Devices VII |
Volume | 7608 |
DOIs | |
State | Published - May 13 2010 |
Event | Quantum Sensing and Nanophotonic Devices VII - San Francisco, CA, United States Duration: Jan 24 2010 → Jan 28 2010 |
Other
Other | Quantum Sensing and Nanophotonic Devices VII |
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Country/Territory | United States |
City | San Francisco, CA |
Period | 1/24/10 → 1/28/10 |
Keywords
- Mid infrared
- Quantum cascade lasers
- Wall plug efficiency
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics