Laser Power Transmission Employing a Dual-Use Photovoltaic Concentrator at the Receiving End

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,863.00
Award Year:
2005
Program:
SBIR
Phase:
Phase II
Contract:
NNM05AA11C
Award Id:
69117
Agency Tracking Number:
033550
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1077 Chisolm Trail, Keller, TX, 76248
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
108935420
Principal Investigator:
MarkO'Neill
Principal Investigator
(817) 379-0100
mjoneill@entechsolar.com
Business Contact:
MarkO'Neill
President
(817) 379-0100
mjoneill@entechsolar.com
Research Institute:
n/a
Abstract
The proposed innovation is a wireless laser power transmission system employing a dual-use photovoltaic concentrator at the receiving end. Specifically, the laser receiver/converter employs thin stretched-membrane Fresnel lenses to focus continuous or pulsed laser light onto small photovoltaic cells, thereby reducing cell cost and improving cell conversion efficiency. The dual-use approach can be implemented in several ways, to allow the same photovoltaic concentrator array to be used as a solar array and/or a laser receiver/converter array. Specifically, the photovoltaic concentrator employs multi-junction cells for high-efficiency solar radiation conversion, and single-junction cells for the high-efficiency laser radiation conversion. A prototype lens/cell unit was successfully tested in Phase I, and a more optimal array will be built and tested in Phase II. The new modular laser/solar photovoltaic concentrator will have many NASA, military, and commercial space applications. Applications include spacecraft arrays receiving laser input from other spacecraft or from Earth; lunar or planetary arrays receiving laser input from nearby spacecraft or from Earth; and Earth-based arrays receiving laser input from space solar power (SSP) spacecraft. The dual-use capability enables state-of-the-art solar operation when sunlight is available (e.g., illuminated orbit portion), and laser operation when sunlight is not available (e.g., eclipse orbit portion).

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government