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公开(公告)号：US20150226669A1
公开(公告)日：2015-08-13
申请号：US14249012
申请日：2014-04-09
发明人： Robert Compton
摘要： In one embodiment, a chip scale atomic sensor is provided. The chip scale atomic sensor includes a body that defines at least one sensing chamber. The body includes a thermal isolation die mounted to the body. The thermal isolation die is disposed in a location that communicates with the at least one sensing chamber. The thermal isolation die includes a substrate defining a frame portion and an isolated portion and a plurality of tethers mechanically coupling the isolated portion of the substrate to the frame portion. The thermal isolation die also includes an atomic source mounted on the isolated portion of the substrate, and a heating element mounted on the isolated portion and configured to heat the atomic source.
摘要翻译： 在一个实施例中，提供了一种芯片级原子传感器。 芯片级原子传感器包括限定至少一个感测室的主体。 身体包括安装在身体上的隔热模具。 热隔离模具设置在与至少一个感测室连通的位置。 隔热管芯包括限定框架部分和隔离部分的基板和将基板的隔离部分机械耦合到框架部分的多个系绳。 隔热管芯还包括安装在基板的隔离部分上的原子源和安装在隔离部分上并被配置为加热原子源的加热元件。
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公开(公告)号：US20150204899A1
公开(公告)日：2015-07-23
申请号：US14162697
申请日：2014-01-23
发明人： Kenneth Salit , Mary Salit , Robert Compton , Jeff A. Ridley , Karl Nelson
IPC分类号： G01P15/093 , B81B7/02
CPC分类号： G01P15/093 , B81B7/02 , G01P1/006 , G01P15/08 , G01P15/12 , G01P15/131
摘要： In some examples, a micro-electro-mechanical system (MEMS) optical accelerometer includes a housing comprising an internal chamber that includes a Fabry-Perot cavity and a proof mass affixed to the housing via one or more elastic elements, a light source configured to emit radiation, a first detector configured to receive radiation transmitted through the Fabry-Perot cavity and configured to generate one or more signals that indicate a position of the proof mass. The MEMS optical accelerometer further comprises an atomic wavelength reference and a second detector configured to detect radiation transmitted through the atomic wavelength reference and configured to generate one or more signals that indicate a wavelength of the radiation emitted by the light source, and a servomechanism electrically coupled to the second photo detector and the light source, configured to adjust the light source to maintain the radiation emitted by the light source at approximately a selected wavelength.
摘要翻译： 在一些示例中，微电子机械系统（MEMS）光学加速度计包括壳体，该壳体包括内部腔室，该内部腔室包括法布里 - 珀罗空腔和经由一个或多个弹性元件固定到壳体的校验物质， 发射辐射，第一检测器被配置为接收透射通过法布里 - 珀罗腔的辐射并被配置为产生指示证明质量位置的一个或多个信号。 MEMS光学加速度计还包括原子波长参考和第二检测器，其被配置为检测透射原子波长参考的辐射并被配置为产生指示由光源发射的辐射的波长的一个或多个信号，以及电耦合的伺服机构 所述第二光检测器和所述光源被配置为调节所述光源以将由所述光源发射的辐射保持在大致选定的波长。
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公开(公告)号：US08829423B2
公开(公告)日：2014-09-09
申请号：US13663057
申请日：2012-10-29
CPC分类号： G21K1/006 , G01C19/58 , G01P15/08 , G04F5/14 , Y10T29/49826
摘要： System and methods for a vacuum cell apparatus for an atomic sensor are provided. In at least one embodiment, the apparatus comprises a cell wall encircling an enclosed volume, the cell wall having a first open end and a second open end opposite from the first open end and a first panel over the first open end of the cell wall and having a first surface, the first surface facing the enclosed volume and having a first set of diffractive optics therein. Further, the apparatus comprises a second panel over the second open end of the cell wall and having a second surface, the second surface facing the enclosed volume and having a second set of diffractive optics therein; wherein the first set of diffractive optics and the second of diffractive optics are configured to reflect at least one optical beam within the enclosed volume along a predetermined optical path.
摘要翻译： 提供了一种用于原子传感器的真空电池装置的系统和方法。 在至少一个实施例中，该装置包括围绕封闭容积的细胞壁，细胞壁具有第一开放端和与第一开放端相对的第二开口端和在细胞壁的第一开口端上的第一面板， 具有第一表面，所述第一表面面向所述封闭容积并且在其中具有第一组衍射光学元件。 此外，该装置包括在细胞壁的第二开口端上的第二面板，并具有第二表面，第二表面面向封闭容积并且在其中具有第二组衍射光学元件; 其中所述第一组衍射光学器件和所述第二衍射光学器件被配置为沿着预定光学路径反射所述封闭容积内的至少一个光束。
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公开(公告)号：US20140016118A1
公开(公告)日：2014-01-16
申请号：US13661809
申请日：2012-10-26
摘要： An inertial sensing system comprises a first multi-axis atomic inertial sensor, a second multi-axis atomic inertial sensor, and an optical multiplexer optically coupled to the first and second multi-axis atomic inertial sensors. The optical multiplexer is configured to sequentially direct light along different axes of the first and second multi-axis atomic inertial sensors. A plurality of micro-electrical-mechanical systems (MEMS) inertial sensors is in operative communication with the first and second multi-axis atomic inertial sensors. Output signals from the first and second multi-axis atomic inertial sensors aid in correcting errors produced by the MEMS inertial sensors by sequentially updating output signals from the MEMS inertial sensors.
摘要翻译： 惯性感测系统包括第一多轴原子惯性传感器，第二多轴原子惯性传感器和与第一和第二多轴原子惯性传感器光耦合的光学多路复用器。 光复用器被配置为顺序地引导沿着第一和第二多轴原子惯性传感器的不同轴的光。 多个微机电系统（MEMS）惯性传感器与第一和第二多轴原子惯性传感器操作性地通信。 来自第一和第二多轴原子惯性传感器的输出信号有助于通过依次更新来自MEMS惯性传感器的输出信号来校正由MEMS惯性传感器产生的误差。
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公开(公告)号：US20220228972A1
公开(公告)日：2022-07-21
申请号：US17408215
申请日：2021-08-20
摘要： A continuously tunable radio frequency (RF) sensor system is provided. The system includes a pump laser system that includes first and second pump lasers, at least one frequency modulator to modulate frequencies of first and second laser light from the pump lasers to first and second select frequencies, a switch system to selectively pass one of the first and second laser light, an amplifier to amplify the passed laser light, a frequency doubler to double the frequency of the amplified laser light to generate pump light. A laser source lock system is in communication with the pump laser system to ensure a frequency of the pump light is referenced to atoms in a vapor cell and provide a probe light. The pump light and probe light are transmitted through the vapor cell. A detector measures the probe light that passed through the vapor cell.
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公开(公告)号：US11300639B2
公开(公告)日：2022-04-12
申请号：US17027450
申请日：2020-09-21
IPC分类号： G01R33/26
摘要： Systems and embodiments for an integrated photonics tensor magnetometer are described herein. In certain embodiments, a system includes a plurality of magnetometers. The system also includes a laser carrier wafer coupled to each of the plurality of magnetometers that commonly distributes one or more lasers to each of the magnetometers in the plurality of magnetometers. Additionally, the system includes a plurality of photodetectors that detect light emitted from the laser carrier wafer and the plurality of magnetometers. Further, the system includes one or more processors that execute computer-executable instructions that cause the processor to monitor and control operation of the one or more lasers and calculate a magnetic field gradient based on the detected light from the magnetometers.
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公开(公告)号：US20210132163A1
公开(公告)日：2021-05-06
申请号：US16786495
申请日：2020-02-10
摘要： A device includes a substrate and nanoscale fin formed from a first material, a RF emitter that emits energy in a range of radio frequencies, and a waveguide formed from a second material. The device further includes a bichromatic directional coupler configured to couple pump and probe laser light into the waveguide. The waveguide is positioned proximate to the nanoscale fin along a coupling length such that the pump laser light propagating within the waveguide is coupled into the nanoscale fin from evanescent wave overlap along the coupling length. The pump laser light causes the first material to absorb the probe laser light when energy emitted by the RF emitter is at one or more frequencies dependent on a magnetic field. The device further includes a processor configured to determine a magnetic field strength of the magnetic field based on an identification of the one or more frequencies.
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公开(公告)号：US10749539B2
公开(公告)日：2020-08-18
申请号：US16031458
申请日：2018-07-10
发明人： Jeffrey James Kriz , Robert Compton
摘要： A chip scale atomic clock (CSAC) includes a temperature stabilized physics system and a temperature stabilized electronics circuitry electrically coupled to the temperature stabilized physics system. Atomic clocks utilize an optical signal having a frequency component. The temperature stabilization increases frequency stability. The temperature stabilized physics system includes a vapor cell and a magnetic field coil, and is enclosed in a magnetic shield. When an ambient temperature of a chip scale atomic clock increases, fluid is extended away, due to thermal expansion, from at least one reservoir towards or away from a thermally isolated subsystem in at least one of the temperature stabilized electronics circuitry and the temperature stabilized physics system.
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公开(公告)号：US20170229203A1
公开(公告)日：2017-08-10
申请号：US15016180
申请日：2016-02-04
发明人： Robert Compton , Karl D. Nelson , Chad Fertig
IPC分类号： G21K1/00
摘要： Systems and methods for eliminating multi-path errors from atomic inertial sensors are provided. In certain embodiments, a system for performing atom interferometry includes a vacuum cell containing multiple atoms and a first plurality of lasers configured to trap the atoms within the vacuum cell. The system further includes a second plurality of lasers configured to impart momentum to the atoms and direct the atoms down multiple paths, wherein a primary path in the multiple paths has a first and second component that converge at a converging point, wherein a diverging part of the primary path in which the first and second components are diverging is asymmetrical with respect to a converging part of the primary path in which the first and second components are converging, such that only the first and second components converge at the converging point wherein other paths do not converge at the converging point.
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公开(公告)号：US20160377436A1
公开(公告)日：2016-12-29
申请号：US14717782
申请日：2015-05-20
发明人： Robert Compton , Karl D. Nelson , Chad Fertig
IPC分类号： G01C19/72
CPC分类号： G01C19/723 , G01C19/60 , G01C19/64 , G01C19/721
摘要： Waveguide includes fork with first and second bifurcated ends coupled to loop section and separated by angle determined based on velocities of portions of quantum mechanical wavefunction of atoms traveling above waveguide. Waveguide propagates blue-detuned laser having first evanescent field that repels atoms away from waveguide and red-detuned laser having second evanescent field that attracts atoms toward waveguide, together creating potential minimum/well. Laser cooling atoms, causing atoms positioned in potential minimum/well to move toward first fork section following potential minimum/well. Atomic state initialization section initializes atomic states of atoms to known ground-state configuration. Beam splitter section splits quantum mechanical waveform of each atom above surface of diverging waveguide into first portion at first velocity that travels into first end of first fork section into first loop section and second portion at second velocity that travels into second end of first fork section into first loop section.
摘要翻译： 波导包括叉，其具有耦合到环路部分的第一和第二分叉端，并且基于在波导上行进的原子的量子机械波函数的部分的速度确定的角度分开。 波导传播具有将原子远离波导的第一瞬逝场的蓝色失谐激光，并且具有将原子吸引到波导的第二衰减场的红色失谐激光一起产生潜在的最小/阱。 激光冷却原子，导致位于潜力最小/井的原子在潜在的最小/井之后朝向第一叉段移动。 原子状态初始化部分将原子的原子状态初始化为已知的基态配置。 光束分离器部分将发散波导表面上的每个原子的量子力学波形分解成第一部分，其以第一速度行进到第一叉部分的第一端到第一回路部分中，而第二部分以第二速度行进到第一叉部分的第二端 第一回路段。
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