Advanced Packaging for Cryogenic Spray Cooled Laser Diodes Arrays

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9451-08-M-0039
Agency Tracking Number: F073-003-0912
Amount: $99,624.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: AF073-003
Solicitation Number: 2007.3
Small Business Information
RINI TECHNOLOGIES, INC.
582 South Econ Circle, Oviedo, FL, 32765
DUNS: 608777798
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Daniel Rini
 President
 (407) 359-7138
 dan@rinitech.com
Business Contact
 Daniel Rini
Title: President
Phone: (407) 359-7138
Email: dan@rinitech.com
Research Institution
N/A
Abstract
Laser diode bars have demonstrated ultra high electro-optical efficiencies >80% when operated at cryogenic temperatures <150 K. Diode pumped-solid-state lasers utilizing cryogenically cooled laser diode arrays and gain material have the potential to increase the wall plug efficiencies to values over 40% compared to 10% for room temperature lasers. To realize these exceptionally high laser bar efficiencies a unique cryogenic cooling approach will be developed. In the proposed SBIR program RTI will: 1) utilize Spray Cooling with liquid nitrogen to show feasibility of cooling a cryo-diode laser array with an optical flux of 560 W/cm2, 2) establish the feasibility by design and experiment for a diode package tolerant of cryo temperatures by using innovative CTE matched material combinations, and 3) partner with diode vendors to construct a spray cooled, CTE matched diode array that will undergo mechanical temperature cycling tests to validate the design.

* information listed above is at the time of submission.

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