Gradiometer configuration invariant to laser phase noise and sensor rotations

Patent · 23 October 2018

OSTI ID:1490049

Kasevich, Mark A.; Shverdin, Miroslav Y.; Black, Adam T.; Gustavson, Todd L.

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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• Assignee: AOSense, Inc. (Sunnyvale, CA)
• Patent Number(s): 10,107,937
• Application Number: 14/975,174
• OSTI ID: 1490049
• Country of Publication: United States
• Language: English

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