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Hybrid catadioptric system for advanced optical cavity velocimetry

United States Patent

9,885,613
February 6, 2018
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
A probe including reflector is disclosed to measure the velocity distribution of a moving surface along many lines of sight. Laser light, directed to the surface by the probe and then reflected back from the surface, is Doppler shifted by the moving surface, collected into probe, and then directed to detection equipment through optic fibers. The received light is mixed with reference laser light and using photonic Doppler velocimetry, a continuous time record of the surface movement is obtained. An array of single-mode optical fibers provides an optic signal to one or more lens groups and a reflector, such as a parabolic reflector having a mirrored interior surface.
Frayer; Daniel K. (Los Alamos, NM)
National Security Technologies, LLC (North Las Vegas, NV)
14/ 216,987
20180024230
March 17, 2014
1. STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. DE-AC52-06NA25946 and was awarded by the U.S. Department of Energy, National Nuclear Security Administration. The government has certain rights in the invention.