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Monolithic Scalable Mid-Infrared Phase-Locked Laser Array

Award Information

Department of Defense
Award ID:
Program Year/Program:
2011 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Intraband LLC
200 N. Prospect Ave. Madison, WI -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2011
Title: Monolithic Scalable Mid-Infrared Phase-Locked Laser Array
Agency / Branch: DOD / NAVY
Contract: N68335-11-C-0432
Award Amount: $149,883.00


The technical objectives of this proposal are: 1) the design of 3.8-4.2 micron-emitting, active-photonic-crystal (APC) quantum-cascade (QC) lasers by using passive phase-locking in a monolithic structure in order to achieve multiwatt-range, diffraction-limited powers; and 2) the development of the key crystal- growth processes for realizing the proposed APC QC laser: the growth and characterization of QC active- region materials (i.e., InGaAs/AlInAs strained-layer superlattices) on virtual substrates. Novel deep-well (DW) QC lasers will be designed to suppress carrier leakage out of active regions, resulting in electro-optic characteristics with low temperature sensitivity. For achieving high coherent power at the chip level, a novel type of APC-type structure is proposed whose elements are DW-QC lasers emitting in the 3.8-4.2 micron region. The design will be for APC devices of built-in index step an order of magnitude higher than for conventional APC-QC devices, as to achieve stable-beam operation in CW operation to high coherent powers. For 3.8-4.2 micron-emitting devices the design will be for usable CW powers larger than 7 W delivered in diffraction-limited beams. A plan for monolithically scaling coherent power to the 50-100 W range and the economical fabrication of the proposed APC devices with high production yield will be developed.

Principal Investigator:

Luke Mawst
(608) 332-2520

Business Contact:

Robert Marsland
(608) 239-3296
Small Business Information at Submission:

Intraband LLC
200 N. Prospect Ave. Madison, WI -

EIN/Tax ID: 264406897
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
University of Wisconsin-Madison
1415 Engineering Drive
Madison, WI 53706-
Contact: Kim Moreland
Contact Phone: (608) 262-3822