NASA SBIR 2007 Solicitation


PROPOSAL NUMBER: 07-2 S1.01-9084
SUBTOPIC TITLE: Lidar System Components
PROPOSAL TITLE: Fabry-Perot Based Ranging Interferometer Receiver for High Spectral Resolution Lidar

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Michigan Aerospace Corporation
1777 Highland Drive, Suite B
Ann Arbor, MI 48108 - 2285
(734) 975-8777

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
David Johnson
1777 Highland Drive, Suite B
Ann Arbor, MI 48108 - 2285
(734) 975-8777

Expected Technology Readiness Level (TRL) upon completion of contract: 5

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Michigan Aerospace Corporation (MAC) is pleased to present the following Phase II proposal for a Fabry-Perot Based Interferometer Receiver for the High Spectral Resolution Lidar (HSRL) System. Under the Phase I work, MAC successfully developed instrument models and created a conceptual design for an aircraft-qualified receiver that can be used with the current HSRL collection optics. This design is optimized to spectrally separate the aerosol and molecular backscatter for the calculation of the aerosol-to-total-scattering ratio and aerosol extinction coefficient. Additionally, wind and temperature data products can be produced with this system. The proposed Phase II efforts are directed at designing and building a bench-top HSRL 532nm receiver that is capable of taking accurate measurements of aerosol scattering ratio, extinction coefficients, molecular temperature and line-of-sight (LOS) velocity. This demonstration unit will verify a new adaptive interferometer measurement technique, called the Programmable Edge Technique (PET), which makes use of a Digital Micro-mirror Device (DMD) in conjunction with a Fabry-Perot interferometer and two photo-multiplier tubes (PMT). The completed bench-top receiver design will serve as the baseline for future aircraft mounted implementations.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
This research is directly applicable to the highly-modular HSRL system at NASA Langley Research Center. Subsequent development of this work will result in a system that can validate and extend the current HSRL system. A 532nm implementation of this work will allow cross-validation of the HSRL and PET techniques, as well as add extended capability for temperature, density, pressure and line-of-sight (vertical) wind velocity estimation.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The atmospheric measurement capabilities made possible through this research aids in military areas such as atmospheric mitigation for snipers, long-range gunnery and precision landing zones for manned and unmanned aircraft as well as meteorological monitoring to assist in Nuclear/Biological/Chemical (NBC) threat analysis and tracking.
Non-military applications include clear-air turbulence sensing for commercial aircraft, meteorological monitoring of tropospheric and upper-atmosphere winds, and site selection and improved efficiency for wind farms.

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