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

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-12-C-0366
Agency Tracking Number: N12A-003-0057
Amount: $149,890.00
Phase: Phase I
Program: STTR
Awards Year: 2012
Solicitation Year: 2012
Solicitation Topic Code: N12A-T003
Solicitation Number: 2012.A
Small Business Information
200 N. Prospect Ave., Madison, WI, -
DUNS: 829814925
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Luke Mawst
 Professor
 (608) 332-2520
 mawst@engr.wisc.edu
Business Contact
 Robert Marsland
Title: President
Phone: (608) 239-3296
Email: 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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