High-Power, Continuous-Wave 3.0- to 3.5-Micron Emitting Quantum Cascade Semiconductor Laser

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$149,890.00
Award Year:
2012
Program:
STTR
Phase:
Phase I
Contract:
N68335-12-C-0366
Agency Tracking Number:
N12A-003-0057
Solicitation Year:
2012
Solicitation Topic Code:
N12A-T003
Solicitation Number:
2012.A
Small Business Information
Intraband LLC
200 N. Prospect Ave., Madison, WI, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
829814925
Principal Investigator:
Luke Mawst
Professor
(608) 332-2520
mawst@engr.wisc.edu
Business Contact:
Robert Marsland
President
(608) 239-3296
rmarsland@tds.net
Research Institution:
University of Wisconsin-Madison
Kim Moreland
21 N. Park St.
Suite 6401
Madison, WI, 53715-1218
(608) 262-3822
Nonprofit college or university
Abstract
The technical objectives of this proposal are: 1) the design of 3.0-3.5 micron-emitting quantum cascade laser (QCL) structures grown on metamorphic-buffer-layer (MBL) substrates; 2) the realization of electroluminescent QCL structures on MBLs with emission in the 3.0-3.5-micron wavelength range. Novel tapered active-region (TA) QCLs will be designed to substantially suppress carrier leakage out of their active regions, in order to achieve electro-optic characteristics of low temperature sensitivity. Novel MBL-based approaches will be used for realizing low layer-strain levels for the structure of 3.0-3.5 micron-emitting intersubband-transition semiconductor sources. The design will be for QCLs able to achieve CW operation to at least 0.5 W at room temperature and with high beam quality. A development plan describing monolithic coherent-beam combining of TA QCLs for scaling the spatially coherent CW power to at least 5-10 W levels will be devised.

* information listed above is at the time of submission.

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