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

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
69117
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
033550
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
ENTECH, Inc.
1077 Chisolm Trail Keller, TX 76248 7000
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2004
Title: Laser Power Transmission Employing a Dual-Use Photovoltaic Concentrator at the Receiving End
Agency: NASA
Contract: NNM04AA80C
Award Amount: $69,078.00
 

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 Fresnel lenses to focus continuous or pulsed laser light onto small photovoltaic cells, thereby reducing cell cost and improving cell conversion efficiency (> 70% near term). The dual-use approach employs a novel four-terminal multijunction cell interconnection design to allow the same photovoltaic concentrator to be used as a state-of-the-art solar array. Specifically, the photovoltaic concentrator uses multijunction cells for the high-efficiency solar radiation conversion (> 30% near-term), but only the top junction of such cells for the high-efficiency laser radiation conversion. After system optimization in Phase I and system demonstration 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 power operation when sunlight is available (e.g., illuminated orbit portion), and laser operation when sunlight is not available (e.g., eclipse orbit portion).

Principal Investigator:

Mark J. O'Neill
Principal Investigator
8173790100
mjoneill@entechsolar.com

Business Contact:

Mark J. O'Neill
President
8173790100
mjoneill@entechsolar.com
Small Business Information at Submission:

ENTECH, Inc.
1077 Chisolm Trail Keller, TX 76248

EIN/Tax ID: 751907840
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No