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公开(公告)号：US11150093B1
公开(公告)日：2021-10-19
申请号：US15877793
申请日：2018-01-23
Applicant: AOSense, Inc.
Inventor： Mark A. Kasevich , Matthew Todd Cashen , Christopher Jekeli
Abstract: An inertial navigation system (INS) device includes three or more atomic interferometer inertial sensors, three or more atomic interferometer gravity gradiometers, and a processor. Three or more atomic interferometer inertial sensors obtain raw inertial measurements for three or more components of linear acceleration and three or more components of rotation. Three or more atomic interferometer gravity gradiometers obtain raw measurements for three or more components of the gravity gradient tensor. The processor is configured to determine position using the raw inertial measurements and the raw gravity gradient measurements.
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公开(公告)号：US10107937B2
公开(公告)日：2018-10-23
申请号：US14975174
申请日：2015-12-18
Applicant: AOSense, Inc.
Inventor： Mark A. Kasevich , Miroslav Y. Shverdin , Adam T. Black , Todd L. Gustavson
Abstract: 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.
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3.发明申请GRADIOMETER CONFIGURATION INVARIANT TO LASER PHASE NOISE AND SENSOR ROTATIONS 审中-公开梯度仪配置不依赖于激光相位噪声和传感器旋转公开(公告)号：US20160178792A1
公开(公告)日：2016-06-23
申请号：US14975174
申请日：2015-12-18
Applicant: AOSense, Inc.
Inventor： Mark A. Kasevich , Miroslav Y. Shverdin , Adam T. Black , Todd L. Gustavson
IPC: G01V7/14
Abstract: 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.
Abstract translation: 用于重力测量的系统包括一个或多个原子源，两个或更多个激光束，以及偏振分束器和后向反射棱镜组件。 一个或多个原子来源是提供三个原子组合。 两个或更多个激光束是冷却或询问三个原子组合。 偏振分束器和后反射棱镜组件处于跑道配置中。 跑道配置将两个或更多个激光束沿相反的方向绕着环形拓扑路线，与三个原子组合相交，以适当的偏振选择用于冷却或干涉仪询问。 当询问时，三个原子组合同轴放置。
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公开(公告)号：US20180321641A1
公开(公告)日：2018-11-08
申请号：US15967409
申请日：2018-04-30
Applicant: AOSense, Inc.
Inventor： Martin M. Boyd , Adam T. Black , Thang Q. Tran , Matthew D. Swallows , Brian R. Patton , Miao Zhu , Thomas H. Loftus , Mark A. Kasevich
CPC classification number: H01S5/0687 , G04F5/14 , H01S3/0085 , H01S3/08086 , H01S3/10 , H01S3/10092 , H01S3/105 , H01S3/13 , H01S3/1305 , H01S5/0085 , H01S5/02284 , H01S5/12 , H01S5/125 , H01S5/14 , H01S5/142 , H01S5/146 , H01S5/4012 , H03L7/26 , H05H3/02
Abstract: An atomic oscillator device includes an atomic oscillator, a controlled oscillator, a resonance controller, and a cold-atom clock output. The atomic oscillator comprises a two-dimensional optical cooling region (2D OCR) for providing a source of atoms and a three-dimensional optical cooling region (3D OCR) for cooling and/or trapping the atoms emitted by the 2D OCR. The atomic oscillator comprises a microwave cavity surrounding the 3D OCR for exciting an atomic resonance. The controlled oscillator produces an output frequency. The resonance controller is for steering the output frequency of the controlled oscillator based on the output frequency and the atomic resonance as measured using an atomic resonance measurement. The cold-atom clock output is configured as being the output frequency of the controlled oscillator.
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公开(公告)号：US10446307B2
公开(公告)日：2019-10-15
申请号：US15603020
申请日：2017-05-23
Applicant: AOSense, Inc.
Inventor： Thomas H. Loftus , Mark A. Kasevich , Arman Cingoz , Matthew Cashen
Abstract: A device for magnetic field generation includes a flux deliverer and a field shaper.
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Patent Agency Ranking
公开(公告)号：US10444016B1
公开(公告)日：2019-10-15
申请号：US16019042
申请日：2018-06-26
Applicant: AOSense, Inc.
Inventor： Mark A. Kasevich , Michael R. Matthews , Micah Ledbetter , Ying-Ju Wang , Martin M. Boyd
Abstract: A system for an atomic interferometer includes a laser control system and a feedback control system. The laser control system controls a first pointing angle of a first interrogating laser beam. The first interrogating laser beam and a second interrogating laser beam interrogate a pair of almost counter-propagating laser cooled atomic ensembles. The feedback control system adjusts the first pointing angle based at least in part on an inertial measurement using the atomic interferometer to bias an output of the atomic interferometer to compensate for the effects of rotations. The pointing angle of the laser beam, which is linearly related to a frequency used to drive an acousto-optic deflector, is linearly related to the rotation rate of the sensor.
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公开(公告)号：US12276503B2
公开(公告)日：2025-04-15
申请号：US17487539
申请日：2021-09-28
Applicant: AOSense, Inc.
Inventor： Mark A. Kasevich , Igor Teper
Abstract: A device comprises thermal atomic source(s), atom interference lasers, and additional laser beam(s). The thermal atomic source(s) provide atomic beam(s). The atom interference lasers are disposed to provide interrogation laser beams that interrogate the atomic beam(s) to assist in generating atom interference. The interrogation laser beams are configured so as to enable a first speed selectivity and/or angle selectivity of a set of atoms used in the atom interference by restricting the set of atoms. The additional laser beam(s) are configured in such a way that, combined with the speed and/or the angle selectivity of the atom interference lasers, achieve a second speed selectivity and/or angle selectivity of the set of atoms that contribute to a final detected interference signal by restricting the set of atoms to a second speed-angle phase space, where the first speed-angle phase space and the second speed-angle phase space intersect to enhance signal stability.
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公开(公告)号：US11852485B2
公开(公告)日：2023-12-26
申请号：US17401645
申请日：2021-08-13
Applicant: AOSense, Inc.
Inventor： Mark A. Kasevich , Matthew Todd Cashen , Christopher Jekeli
CPC classification number: G01C21/165 , G01V7/04
Abstract: An inertial navigation system (INS) device includes three or more atomic interferometer inertial sensors, three or more atomic interferometer gravity gradiometers, and a processor. Three or more atomic interferometer inertial sensors obtain raw inertial measurements for three or more components of linear acceleration and three or more components of rotation. Three or more atomic interferometer gravity gradiometers obtain raw measurements for three or more components of the gravity gradient tensor. The processor is configured to determine position using the raw inertial measurements and the raw gravity gradient measurements.
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公开(公告)号：US20220163331A1
公开(公告)日：2022-05-26
申请号：US17401645
申请日：2021-08-13
Applicant: AOSense, Inc.
Inventor： Mark A. Kasevich , Matthew Todd Cashen , Christopher Jekeli
Abstract: An inertial navigation system (INS) device includes three or more atomic interferometer inertial sensors, three or more atomic interferometer gravity gradiometers, and a processor. Three or more atomic interferometer inertial sensors obtain raw inertial measurements for three or more components of linear acceleration and three or more components of rotation. Three or more atomic interferometer gravity gradiometers obtain raw measurements for three or more components of the gravity gradient tensor. The processor is configured to determine position using the raw inertial measurements and the raw gravity gradient measurements.
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公开(公告)号：US20190385773A1
公开(公告)日：2019-12-19
申请号：US16557873
申请日：2019-08-30
Applicant: AOSense, Inc.
Inventor： Thomas H. Loftus , Mark A. Kasevich , Arman Cingoz , Matthew Cashen
Abstract: A device for magnetic field generation includes a flux deliverer and a field shaper. The field shaper is shaped to generate a bias field
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