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Coherent Beam Combining of Mid-IR Lasers

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-13-C-0027
Agency Tracking Number: A2-5083
Amount: $400,478.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: A10a-T007
Solicitation Number: 2010.1
Solicitation Year: 2010
Award Year: 2013
Award Start Date (Proposal Award Date): 2013-06-07
Award End Date (Contract End Date): 2015-06-04
Small Business Information
1101 Colorado Avenue
Santa Monica, CA 90401-3009
United States
DUNS: 000000000
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 C. Kumar Patel
 (310) 458-0808
Business Contact
 Francis McGuire
Title: VP, Finance
Phone: (310) 458-4493
Research Institution
 Robert Hicks
Box 951592, Bolter Hall 5531 Chemical&Biomolecular Eng.
Los Angeles, CA 90095-1592
United States

 (310) 206-6885
 Nonprofit College or University

Many military applications require efficient optical sources producing several to hundred watts in continuous-wave (CW) or quasi-continuous-wave (QCW) operation at room temperature (RT) in the MWIR (3-5 micron) and LWIR (8-12 micron) regions. While QCLs have become the sources of choice in these spectral regions, the only realistic option to attain hundred-watt power level with good beam quality is to coherently combine multiple QCL emitters into a single output beam. In Phase I, we have performed analysis of QCL arrays, and showed that this approach is well suited for necessary power scaling. We have developed a design, which should produce 10 W of output power at RT. In Phase II, we will develop the processing required for the fabrication of such arrays, fabricate and characterize prototype devices. We will design, fabricate, and characterize a second generation of devices with higher output power of several tens of watts. Furthermore, we will develop a plan for extending the performance of these arrays up to 100 W. Our approach, leveraging advanced material growth and fabrication, will result in robust, compact, and cost-effective monolithic QCL beam combining solutions exceeding the requirements of this solicitation, and provide the military with the required laser sources.

* Information listed above is at the time of submission. *

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