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1. 发明授权

US12138613B2 Oxide-based doping of evaporable getter 有权
公开(公告)号：US12138613B2
公开(公告)日：2024-11-12
申请号：US17935878
申请日：2022-09-27
申请人： Honeywell International Inc.
发明人： John Downs , Mahdi Mohajeri , Dean Eivind Johnson
IPC分类号： G01C19/00 , B01J20/02 , B01J20/04 , G01C19/64 , G01C19/66
CPC分类号： B01J20/0225 , B01J20/04 , G01C19/00 , G01C19/64 , G01C19/66 , G01C19/661 , G01C19/665
摘要： Systems and methods for oxide-based doping of an evaporable getter are described herein. In certain embodiments, a method includes mixing a first getter material with a second getter material to create a mixed getter material. The method also includes mixing an oxide dopant with the mixed getter material to create a doped getter material. Further, the method includes sealing the doped getter material within a device. Moreover, the method includes applying heat to the doped getter material to cause the doped getter material to emit a doped gas for deposition on internal surfaces of the device.

2. 发明授权

US11803013B2 Seamless stitching for multi-reticle fabrication of integrated photonics optical components 有权
公开(公告)号：US11803013B2
公开(公告)日：2023-10-31
申请号：US17710847
申请日：2022-03-31
申请人： Anello Photonics, Inc.
发明人： Avi Feshali , Warren Bruce Jin , Mario Paniccia
IPC分类号： G02B6/13 , G01C19/64 , G02B6/12
CPC分类号： G02B6/13 , G01C19/64 , G02B6/12004
摘要： Aspects of the present disclosure are directed to fabrication of large-footprint chips having integrated photonic components comprising low-loss optical waveguides. The large footprint chips require the use of multiple reticles during fabrication. Stitching adjacent reticle fields seamlessly is accomplished by overlaying into adjacent reticle fields, tapering waveguide ends, and using strategically placed alignment marks in the die.

3. 发明公开

US20230332892A1 DEVICE FOR MEASURING A QUANTITY REPRESENTATIVE OF A POPULATION OF COLD ATOMS AND ASSOCIATED SENSOR 审中-公开
公开(公告)号：US20230332892A1
公开(公告)日：2023-10-19
申请号：US18011513
申请日：2021-06-18
申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , OBSERVATOIRE DE PARIS , SORBONNE UNIVERSITE
发明人： Carlos GARRIDO ALZAR
IPC分类号： G01C19/64 , G21K1/00 , H05H3/00 , H03L7/26
CPC分类号： G01C19/64 , G21K1/006 , H03L7/26 , H05H3/00
摘要： A device for measuring a quantity representative of a population (N) of cold atoms, the cold atoms being located in a cloud of cold atoms to be analyzed, the device includes a microwave source configured to generate an incident signal at a predetermined signal frequency, a microwave guide configured to propagate the incident signal and an antenna configured to emit the incident signal to the cloud of cold atoms and its environment, the antenna and the microwave guide also being able to recover an atomic reflected signal resulting from a reflection of the incident signal by the cloud and its environment, and which propagates in the waveguide in the opposite direction to the incident signal, a splitting device coupled to the microwave guide and configured to extract at least part of the atomic reflected signal, a detector configured to detect the atomic reflected signal extracted by the splitting device, the quantity representative of the population of cold atoms (N) being obtained from a detected value of the atomic reflected signal and from a detected value of a signal reflected by the environment in the absence of the cloud, called reference reflected signal.

4. 发明授权

US11326884B2 Stimulated brillouin ring laser gyroscope with optical frequency offset of counterpropagating pump laser signals 有权
公开(公告)号：US11326884B2
公开(公告)日：2022-05-10
申请号：US16789404
申请日：2020-02-12
申请人： California Institute of Technology
发明人： Kerry Vahala , Jiang Li , Yu-Hung Lai , Myoung-Gyun Suh , Seung Hoon Lee
IPC分类号： G01C19/66 , G01C19/72 , H01S3/00 , H01S3/094 , H01S3/30 , G01C19/64
摘要： A disk resonator is pumped by counterpropagating pump signals to produce corresponding counterpropagating Brillouin laser signals. The pump laser optical frequencies are separated by a frequency offset ΔνP but excite the same nominal resonator optical mode; the Brillouin laser optical frequencies are separated by a beat frequency ΔνL with 0

5. 发明授权

US10812197B1 Pulsed Sagnac loop phase-modulated microwave photonic link 有权
公开(公告)号：US10812197B1
公开(公告)日：2020-10-20
申请号：US16533899
申请日：2019-08-07
申请人： The University of Massachusetts
发明人： Yifei Li
IPC分类号： H04B10/548 , G01C19/64
摘要： A modified Sagnac loop phase-modulated microwave photonic link with a pulsed optical source is disclosed. Unlike a conventional Sagnac loop, the optical phase offset of the loop can be adjusted to quadrature by applying a synchronized modulation signal to an in-loop phase shifting phase modulator. Thereby, it exemplifies the fundamental RF response.

6. 发明授权

US10375813B2 On-chip trapped ultracold atom sensor allowing rotational velocity to be measured 有权
公开(公告)号：US10375813B2
公开(公告)日：2019-08-06
申请号：US15778605
申请日：2016-11-24
申请人： THALES
发明人： Matthieu Dupont-Nivet , Sylvain Schwartz
IPC分类号： G01C19/64 , H05H3/00
摘要： Ultra-cold atom sensor for measuring a rotational velocity along a measurement axis comprises: means designed to generate a first and a second ultra-cold atom trap, one trap making it possible to immobilize a cloud of ultra-cold atoms in an internal state different from the other trap, at a predetermined distance from the measurement plane, the means comprising, at least one first and one second waveguide that are designed to propagate microwaves with angular frequencies ωa and ωb, the waveguides being non-secant and positioned symmetrically about an axis called the axis of symmetry, conductive wires integrated into the chip and designed to be flowed through by DC currents, the means being configured to modify the energy of the ultra-cold atoms in such a way as to create a potential minimum for the ultra-cold atoms in the internal state |a> and a potential minimum for the ultra-cold atoms in the internal state |b>, thus forming the first and second ultra-cold atom traps, and to move the traps along a closed path, traveled in one direction by the ultra-cold atoms of the first trap and in the opposite direction by the ultra-cold atoms of the second trap.

7. 发明申请

US20180066942A1 FULLY RECIPROCAL ATOMIC INTERFEROMETRIC GYROSCOPE 审中-公开
公开(公告)号：US20180066942A1
公开(公告)日：2018-03-08
申请号：US15418990
申请日：2017-01-30
申请人： Honeywell International Inc.
发明人： Robert Compton
IPC分类号： G01C19/64
CPC分类号： G01C19/64 , G01C19/58
摘要： A fully reciprocal atomic interferometric gyroscope is provided. The fully reciprocal atomic interferometric gyroscope includes an atomic chamber, a plurality of lasers, a controller and measurement sensor. The atomic chamber is used to hold an atom cloud. The plurality of lasers are selectively positioned to selectively direct laser beams into the atomic chamber. The controller is configured to control the plurality lasers to initially cool the atom cloud to a point where at least one optical lattice can be formed that is used to move wave function halves of atoms of the atom cloud along split wave function paths that form an interferometer cycle. The measurement sensor is configured to conduct a phase readout of a wave function upon the completion of at least one interferometer cycle around the split wave function paths.

8. 发明申请

US20170315054A1 NONLINEAR INTERFEROMETER SYSTEMS AND METHODS 审中-公开
公开(公告)号：US20170315054A1
公开(公告)日：2017-11-02
申请号：US15582178
申请日：2017-04-28
申请人： UT-Battelle, LLC
发明人： Joseph M. Lukens , Nicholas A. Peters , Raphael C. Pooser
IPC分类号： G01N21/45 , G01J3/26 , G01C19/64
CPC分类号： G01N21/45 , G01B9/02003 , G01B9/02007 , G01B2290/55 , G01C19/64 , G01J3/26
摘要： Nonlinear interferometers include a nonlinear optical medium that is situated to produce a conjugate optical beam in response to a pump beam and a probe beam. The pump, probe, and conjugate beams propagate displaced from each other along a common optical path. One of the beams is selectively phase shifted, and the beams are then returned to the nonlinear medium, with the selectively phase shift beam phase shifted again. The nonlinear medium provides phase sensitive gain to at least one of the probe or conjugate beams, and the amplified beam is detected to provide an estimate of the phase shift.

9. 发明授权

US09671228B2 Floating current mirror for RLG discharge control 有权
公开(公告)号：US09671228B2
公开(公告)日：2017-06-06
申请号：US14520019
申请日：2014-10-21
申请人： Honeywell International Inc.
发明人： John F. Ackerman
IPC分类号： G01C19/64 , G01C19/66 , H02J1/00 , H01S3/097
CPC分类号： G01C19/665 , G01C19/661 , H01S3/09705 , H02J1/00
摘要： A ring laser gyroscope (RLG) assembly comprises an RLG block comprising: a first anode; a second anode; a cathode; and a cavity. The RLG assembly further comprises a current supply circuit coupled to the RLG block. The current supply circuit comprises a high voltage power supply to provide a high voltage signal; a first current path coupled between the high voltage power supply and the first anode to provide a first current to the first anode; and a second current path coupled between the high voltage power supply and the second anode to provide a second current to the second anode. The second current path is configured to mirror the first current such that the second current approximately matches the first current. Each component in the second current path is configured to operate based on power derived only from the high voltage signal.

10. 发明授权

US09557173B1 Integrated laser vibrometer MEMS micro-shell gyroscope 有权
标题翻译：集成激光测微计MEMS微壳陀螺仪
公开(公告)号：US09557173B1
公开(公告)日：2017-01-31
申请号：US14548222
申请日：2014-11-19
申请人： HRL Laboratories, LLC
发明人： Raviv Perahia , Richard J. Joyce
IPC分类号： G01C19/64 , G01C19/56 , G01C25/00
CPC分类号： G01C19/56 , G01C19/5684 , G01C25/00
摘要： A gyroscope including a dielectric resonator, a laser vibrometer on a first side of the dielectric resonator, and a laser dump for redirecting or absorbing light received at the laser dump from the laser vibrometer, the laser dump on a second side of the dielectric resonator. A first distance between the dielectric resonator and the laser vibrometer ranges from 10 nm to 20 μm, and a second distance between the dielectric resonator and the laser dump ranges from 10 nm to 20 μm.
摘要翻译：包括介质谐振器的陀螺仪，在介质谐振器的第一侧上的激光振动计，以及用于重定向或吸收从激光振动计在激光转储处接收的光的激光器转台，在介质谐振器的第二侧上的激光器。介质谐振器和激光振动计之间的第一距离范围为10nm至20μm，并且介质谐振器和激光器放电之间的第二距离为10nm至20μm。

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