Electrically Pumped Type-II Quantum Well Lasers at 4um

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 36120
Amount: $732,298.00
Phase: Phase II
Program: SBIR
Awards Year: 1998
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
APPLIED OPTOELECTRONICS, INC.
242 Kingfisher, Houston, TX, 77096
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Chih-hsiang Lin
 (281) 782-3855
Business Contact
Phone: () -
Research Institution
N/A
Abstract
We will develop high-temperature high-power mid-infrared (2-5 micron) diodes based on InAs/InGaSb/InAlSb type-II quantum wells. In pulse mode operation, we will investigate the pulse-to-pulse reproducibility with repetition rates > 50 KHz. Recently, we have demonstrated room-temperature optically pumped lasers from 2.8 to 4.5 microns based on InAs/InGaSb/InAs/AlSb type-II quantum wells. For 4.5 micron devices, lasing was observed up to 310 K, and the peak output power per facet was more than 3.65 W at 160 K and about 360 mW and 280 K. For 350 K 3.2 micron lasers, the maximum peak output power per facet was more than 260 mW at room temperature. Electrically-pumped lasers based on type-II superlattice have also been demonstrated. Since the Auger non-radiative recombination rate could be suppressed by more than two orders of magnitude using bandgap engineering, the radiative efficiency and hence power efficiency could be dramatically improved.The Phase I effort will be directed towards the demonstrations of room-temperature high-power optically-pumped lasers and high-temperature electrically-pumped laser diodes with high repetition rates.

* information listed above is at the time of submission.

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government