On-Chip Passive Phase-Locking for High Coherent Power, Mid-IR Quantum Cascade Lasers

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-12-C-0033
Agency Tracking Number: A2-4541
Amount: $749,714.00
Phase: Phase II
Program: STTR
Awards Year: 2012
Solicitation Year: 2010
Solicitation Topic Code: A10a-T007
Solicitation Number: 2010.A
Small Business Information
Intraband LLC
200 N. Prospect Ave., Madison, WI, -
DUNS: 829814925
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dan Botez
 Member
 (608) 265-4643
 dbotez@charter.net
Business Contact
 obert Marsland
Title: President
Phone: (608) 239-3296
Email: rmarsland@tds.net
Research Institution
 University of Wisconsin-Madis
 Kim Moreland
 1415 Engineering Drive
Madison, WI, 53726-4027
 (608) 262-3822
 Nonprofit college or university
Abstract
The technical objectives of this proposal are: 1) Implement the design developed in Phase I for the realization of 8 micron-emitting active-photonic-crystal (APC) quantum-cascade (QC) lasers of 3 W average, diffraction-limited power and 15 % wallplug efficiency in quasi-CW operation; 2) Design and realize 4.6 micron-emitting APC QC lasers of 3 W CW diffraction-limited power and 15 % wallplug efficiency; 3) Identify commercial partners/customers and additional commercial markets; and 4) Perform studies for scaling the coherent power at 4.6 micron to the 50-100 W range. Tapered-active, deep-well QC lasers will be used, since they suppress carrier leakage out of active regions, resulting in electro-optic characteristics much less temperature sensitive than for conventional QC devices; thus allowing for significant increases in average power and wallplug efficiency. The APC-QC devices to be used have a built-in refractive-index step an order of magnitude higher than that for conventional APC-QC devices, and thus will be able to achieve stable, diffraction-limited beam operation in quasi-CW or CW operation to watt-range coherent powers with high wallplug efficiency.

* information listed above is at the time of submission.

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