Skip to Content
Find More Like This
Return to Search

GRADIOMETER CONFIGURATION INVARIANT TO LASER PHASE NOISE AND SENSOR ROTATIONS

United States Patent Application

20160178792
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A system for gravity measurement includes one or more atom sources, two or more laser beams, and a polarizing beamsplitter and a retro-reflection prism assembly. The one or more atom sources is to provide three ensembles of atoms. The two or more laser beams is to cool or interrogate the three ensembles of atoms. The polarizing beamsplitter and the retro-reflection prism assembly are in a racetrack configuration. The racetrack configuration routes the two or more laser beams in opposing directions around a loop topology, intersecting the three ensembles of atoms with appropriate polarizations chosen for cooling or interferometer interrogation. The three ensembles of atoms are positioned coaxially when interrogated.
Kasevich, Mark A. (Palo Alto, CA), Shverdin, Miroslav Y. (Mountain View, CA), Black, Adam T. (Mountain View, CA), Gustavson, Todd L. (Sunnyvale, CA)
14/ 975,174
December 18, 2015
[0002] This invention was made with Government support under DE-AC52-07NA27344 awarded by the United States Department of Energy. The Government has certain rights in the invention.