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UV LASER BASED STAND-OFF ACOUSTIC SENSOR

United States Patent Application

20180045544
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A system for aerially surveying an area where a plane may have crashed in water and locating pings from the plane's black box using a laser on an aerial platform that produces laser pulses; using a launch telescope to direct the laser pulses to the water producing scattering from the laser pulses and a continuous stream of backscatter; using a receiving telescope to collect the continuous stream of backscatter; using an interferometer operatively connected to the receiving telescope to produce two outputs, wherein one output is the continuous stream of backscatter, and wherein the other output is a delayed replica of the first output; and using a data collection and analysis unit operatively connected to the interferometer to produce a measurement of the sound.
Dawson, Jay W. (Livermore, CA), Allen, Graham S. (Pleasanton, CA), Carter, Michael R. (Livermore, CA), Heebner, John E. (San Ramon, CA), Messerly, Michael J. (Danville, CA), Pax, Paul H. (Livermore, CA), Rubenchik, Alexander M. (Livermore, CA)
15/ 175,423
June 7, 2016
STATEMENT AS TO RIGHTS TO APPLICATIONS MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0002] The United States Government has rights in this application pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.