FABRY-PEROT BASED RANGING INTERFEROMETER RECEIVER FOR HIGH SPECTRAL RESOLUTION LIDAR TECHNICAL ABSTRACT: MI…

Public award description

FABRY-PEROT BASED RANGING INTERFEROMETER RECEIVER FOR HIGH SPECTRAL RESOLUTION LIDAR TECHNICAL ABSTRACT: 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.