CHIP-SCALE ATOMIC GYROSCOPE - MICROSEMI FREQUENCY AND TIME CORP

Title:

CHIP-SCALE ATOMIC GYROSCOPE

Document Type and Number:

WIPO Patent Application WO/2015/002684

Kind Code:

A3

Abstract:

Apparatuses and methods for sensing rotations are provided. One embodiment of the apparatus includes a cell containing alkali and active nuclear magnetic resonance (NMR) isotope(s) atoms, a magnet providing a first magnetic field, a light source, and optics which circularly polarize light to generate a pump beam for optically pumping the alkali atoms and, together with a second magnetic field orthogonal to the first magnetic field or a modulation of the light, causing the alkali and the NMR isotope atoms to precess about the first magnetic field. The apparatus further includes a partial reflector opposite the light source and configured to, in conjunction with a first linear polarizer, generate a reflected linearly-polarized probe beam from a portion of the pump beam, and one or more polarizing beam splitters configured to split light of the probe beam incident thereon into orthogonally polarized components that are detected and used to determine rotations.

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JP6030161	Stabilization of the probe beam frequency in an atomic sensor system
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Inventors:

OVERSTREET KIM RICHARD II (US)
MALCOLMSON JOHN ALEXANDER (US)
LUTWAK ROBERT IRA (US)

Application Number:

PCT/US2014/033689

Publication Date:

March 05, 2015

Filing Date:

April 10, 2014

Export Citation:

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Assignee:

MICROSEMI FREQUENCY AND TIME CORP (US)

International Classes:

G01C19/62

Domestic Patent References:

WO2006069116A1

2006-06-29

Foreign References:

US20090039881A1	2009-02-12
EP1865283A1	2007-12-12

Other References:

DONLEY E A: "Nuclear magnetic resonance gyroscopes", SENSORS, 2010 IEEE, IEEE, PISCATAWAY, NJ, USA, 1 November 2010 (2010-11-01), pages 17 - 22, XP031978286, ISBN: 978-1-4244-8170-5, DOI: 10.1109/ICSENS.2010.5690983

Attorney, Agent or Firm:

KIM, Frederick D. et al. (L.L.P.24 Greenway Plaza, Suite 160, Houston Texas, US)

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