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Optical Cooling of RF systems using an All Optical Fiber Approach

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
95098
Program Year/Program:
2010 / STTR
Agency Tracking Number:
N10A-017-0330
Solicitation Year:
N/A
Solicitation Topic Code:
NAVY 10T017
Solicitation Number:
N/A
Small Business Information
NP Photonics, Inc.
UA Science and Technology Park 9030 S. Rita Road, Suite #120 Tucson, AZ 85747-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2010
Title: Optical Cooling of RF systems using an All Optical Fiber Approach
Agency / Branch: DOD / NAVY
Contract: N00014-10-M-0298
Award Amount: $70,000.00
 

Abstract:

We propose an all-fiber approach to heat removal from devices such as high-power RF amplifiers. In our approach, the cooling fiber segment, the pump fiber laser, and the optical fiber used for photon waste removal are all integrated into a single fiber configuration. NP Photonics' high efficiency thulium-doped fiber lasers are used to pump high purity thulium-doped glass fibers, which provide the cooling action on the affixed heat source. Our system has several key advantages compared to conventional bulk glass systems. Its cooling power benefits from high optical confinement in the thulium-doped fiber core. Second, heat removal and waste photon piping into the fiber occur in the same location (the cooling fiber segment), increasing the fraction of heat that can be dumped at a remote location. Fiber Bragg gratings, which are transparent to the waste photons and thus minimize fluorescence reabsorption, will be used for enhancing pump absorption. In Phase I, cooling fibers are based on germanate host glass, but in Phase II other host glasses such as ZBLAN and telluride can also be investigated. Theoretical modeling of optical cooling in our cooling fiber and thermal modeling of the entire fiber cooler will be performed in parallel with the experiments.

Principal Investigator:

Dan Nguyen
Modeling Engineer
5207997419
ntdan@npphotonics.com

Business Contact:

James Fountain
Director Contract Adminis
5207997424
fountain@npphotonics.com
Small Business Information at Submission:

NP Photonics, Inc.
UA Science and Technology Park 9030 S. Rita Road, Suite #120 Tucson, AZ 85747

EIN/Tax ID: 860999108
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
University of Arizona
Sponsored Projects Services
PO Box 3520
Tucson, AZ 85722
Contact: Sherry L. Esham
Contact Phone: 5206266000