Optics: measuring and testing – By light interference – Rotation rate
Reexamination Certificate
2008-04-15
2008-04-15
Lyons, Michael A. (Department: 2877)
Optics: measuring and testing
By light interference
Rotation rate
Reexamination Certificate
active
07359059
ABSTRACT:
A chip-scale atomic gyroscope and methods for sensing and measuring mechanical rotation of an object are disclosed. The chip-scale atomic gyroscope can include a vapor cell including a vapor cavity adapted to contain a vaporized source of alkali-metal atoms and noble gas atoms, a pump laser source adapted to produce a first laser beam along an optical pumping axis for optically pumping the alkali-metal atoms within the vapor cavity to an excited state, and a sense laser source adapted to produce a second laser beam along a sense axis transverse to the optical pumping axis for probing the polarization angle of the noble gas atoms within the vapor cavity. The pump and sense laser sources can each be connected to a servo mechanism, which can be configured to maintain the laser beams at a wavelength corresponding to the carrier wavelength of the alkali-metal atoms and a wavelength detuned from the carrier wavelength.
REFERENCES:
patent: 4104577 (1978-08-01), Greenwood
patent: 4147974 (1979-04-01), Greenwood
patent: 4157495 (1979-06-01), Grover et al.
patent: 4403190 (1983-09-01), Greenwood
patent: 4406986 (1983-09-01), Greenwood
patent: 4430616 (1984-02-01), Grover
patent: 4446428 (1984-05-01), Kwon et al.
patent: 4450407 (1984-05-01), Kwon et al.
patent: 4454482 (1984-06-01), DeMarchi
patent: 4461996 (1984-07-01), Kwon
patent: 4509014 (1985-04-01), Karwacki et al.
patent: 4525672 (1985-06-01), Lam et al.
patent: 4544891 (1985-10-01), Karwacki
patent: 4874942 (1989-10-01), Clauser
patent: 4992656 (1991-02-01), Clauser
patent: 5107226 (1992-04-01), Pascaru
patent: 5387881 (1995-02-01), Schweda et al.
patent: 5657340 (1997-08-01), Camparo et al.
patent: 6255647 (2001-07-01), Vanier et al.
patent: 6263002 (2001-07-01), Hsu et al.
patent: 6265945 (2001-07-01), Delaney et al.
patent: 6320472 (2001-11-01), Vanier
patent: 6347108 (2002-02-01), Jiang et al.
patent: 6900702 (2005-05-01), Youngner et al.
patent: 2001/0021214 (2001-09-01), Jiang et al.
patent: 2004/0035182 (2004-02-01), Kadlecek
patent: 2137357 (1984-10-01), None
patent: WO2006069116 (2006-06-01), None
Arinmondo et al., “Nonabsorbing Atomic Coherences by Coherent Two-Photon Transitions in a Three-Level Optical Pumping,” Lettere Al Nuovo Cimento Della Societa Italiana Di Fisica, vol. 17, No. 10, 8 pages, Nov. 6, 1976.
Happer, “Depart of Defense Contributions to U.S. Science and Technology,” Optics and Photonics News, pp. 35-39, Nov. 2004.
Jafferis et al., “Optical Pumping,” 24 pages, Jan. 17, 2004.
Jau et al., “Push-Pull Optical Pumping of Pure Superposition States,” Physical Review Letters, vol. 93, No. 16, 4 pages, Oct. 2004.
Kitching et al., IEEE Transactions on Instrumentation and Measurement, vol. 49, No. 6, pp. 1313-1317, Dec. 2000.
Lust Lisa M.
Youngner Dan W.
Black Lowe & Graham PLLC
Honeywell International , Inc.
Lyons Michael A.
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