公开(公告)号：US09857441B2

公开(公告)日：2018-01-02

申请号：US13922376

申请日：2013-06-20

Applicant: Honeywell International Inc.

Inventor： Mary K. Salit ,  Kenneth Salit

IPC: G01V3/00 ,  G01R33/26 ,  G01R33/032

CPC classification number: G01R33/26 ,  G01R33/032

Abstract: A radio-frequency atomic magnetometer comprises a laser, a photodetector, a vapor chamber, wherein the vapor chamber is in an optical path of laser light between the laser and photodetector, a circular polarizer configured to circularly polarize laser light emitted by the laser, wherein a circularly polarized laser beam is configured to pump into an oriented state, spins of atoms in the vapor chamber and to probe the atoms of the vapor chamber, wherein probing includes detecting a local radio frequency field; and a set of direct current (DC) field coils comprising at least one DC field coil, wherein the set of DC field coils is configured to generate a DC magnetic field oriented at 45 degrees relative to the optical axis of the laser light emitted by the laser and directed toward the vapor chamber; the set of DC field coils further configured to have adjustable DC magnetic field strength.

公开(公告)号：US09212912B1

公开(公告)日：2015-12-15

申请号：US14574695

申请日：2014-12-18

Applicant: Honeywell International Inc.

Inventor： Mary K. Salit ,  Earl Thomas Benser ,  Kenneth Salit

IPC: G01C19/72

CPC classification number: G01C19/727 ,  G01C19/66 ,  H01S3/0835

Abstract: A laser gyroscope comprising includes a first solid waveguide; a gain medium interaction region where light traveling through the first solid waveguide interacts with non-solid Doppler-broadened gain medium molecules positioned outside of the first solid waveguide; at least one medium exciter configured to excite the non-solid Doppler-broadened gain medium at the gain medium interaction region, wherein the excited non-solid Doppler-broadened gain medium induces first and second laser fields within the first solid waveguide, wherein the first laser field travels in a clockwise direction within the first solid waveguide and the second laser field travels in a counter-clockwise direction within the first solid waveguide; and a photodetector communicatively coupled to the first solid waveguide and configured to detect the portions of the first and second laser fields.

Abstract translation: 一种激光陀螺仪，包括：第一固体波导; 增益介质相互作用区域，其中穿过第一固体波导的光与位于第一固体波导外部的非固体多普勒扩展增益介质分子相互作用; 至少一个介质激励器，被配置为在所述增益介质相互作用区域处激发所述非固体多普勒扩展增益介质，其中所述激发的非固体多普勒扩展增益介质在所述第一固体波导内引发第一和第二激光场，其中所述第一 激光场在第一固体波导内沿顺时针方向行进，第二激光场在第一固体波导内沿逆时针方向行进; 以及光电检测器，其通信地耦合到第一固体波导并且被配置为检测第一和第二激光场的部分。

公开(公告)号：US08947671B2

公开(公告)日：2015-02-03

申请号：US13774678

申请日：2013-02-22

Applicant: Honeywell International Inc.

Inventor： Lee K. Strandjord ,  Mary K. Salit ,  Tiequn Qiu ,  Glen A. Sanders

IPC: G01C19/72

CPC classification number: G01C19/721 ,  G01C19/727

Abstract: A resonator fiber optic gyroscope (RFOG) is provided. The RFOG includes a gyroscope resonator having a clockwise input port and a counter-clockwise input port; a first laser configured to couple a clockwise optical beam into to the clockwise input port; a clockwise Pound-Drever-Hall modulation generator to modulate the clockwise optical beam with a resonance tracking modulation before the clockwise optical beam is coupled into the clockwise input port; bias correction electronics; FSR-detection-and-servo electronics including a switch communicatively coupled to the clockwise Pound-Drever-Hall modulation generator; a clockwise transmission detector configured to receive an optical beam output from the counter-clockwise input port and output signals to the bias correction electronics and the FSR-detection-and-servo electronics; and a second laser configured to couple a counter-clockwise optical beam into to the counter-clockwise input port, wherein the FSR of the gyroscope resonator is measured based on the Pound-Drever-Hall modulation of the clockwise optical beam.

Abstract translation: 提供了一种谐振器光纤陀螺仪（RFOG）。 RFOG包括具有顺时针输入端口和逆时针输入端口的陀螺仪谐振器; 配置成将顺时针光束耦合到顺时针输入端口的第一激光器; 在顺时针光束耦合到顺时针输入端口之前，使用谐振跟踪调制来调制顺时针光束的顺时针方向Drever-Hall调制发生器; 偏置校正电子; FSR检测和伺服电子器件包括通信地耦合到顺时针的Dound-Drever-Hall调制发生器的开关; 顺时针传输检测器，被配置为接收从逆时针输入端口输出的光束，并将信号输出到偏置校正电路和FSR检测与伺服电子设备; 以及配置成将逆时针光束耦合到逆时针输入端口的第二激光器，其中基于顺时针光束的磅德尔 - 霍尔调制来测量陀螺仪谐振器的FSR。

公开(公告)号：US10429677B2

公开(公告)日：2019-10-01

申请号：US15636474

申请日：2017-06-28

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Mary K. Salit

IPC: G02B6/12 ,  G01C19/72 ,  G02B6/036 ,  G02B6/122 ,  G02B6/132 ,  G02B6/136 ,  G02F1/125

Abstract: An embodiment of a waveguide has a Brillouin bandwidth, and includes cladding and a core. The cladding includes first layers of a first material, each first layer having a physical characteristic of approximately a first value, and includes second layers of a second material, each second layer having the physical characteristic of approximately a second value, the second layers alternating with the first layers such that the Brillouin bandwidth is wider than the Brillouin bandwidth would be if the cladding excluded the first layers or excluded the second layers. For example, the first and second cladding layers can be formed from different materials, or can be formed having different values of a physical characteristic such as thickness, acoustic velocity, or index of refraction. Such a waveguide can facilitate alignment of the waveguide's optical bandwidth with the waveguide's Brillouin bandwidth because the Brillouin bandwidth is widened compared to conventional waveguides.

公开(公告)号：US20180081115A1

公开(公告)日：2018-03-22

申请号：US15636480

申请日：2017-06-28

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Mary K. Salit

IPC: G02B6/125 ,  G02B6/136 ,  H01S3/00

CPC classification number: G02B6/125 ,  G02B6/136 ,  H01S3/0078

Abstract: An embodiment of an integrated waveguide is configured for reducing the level of Brillouin scattering, and for reducing the levels of at least some of the unwanted effects of Brillouin scattering. Such an integrated waveguide has a Brillouin gain, includes a cladding, and includes a core disposed within the cladding and configured to cause the Brillouin gain to be less than the Brillouin gain would be if the core were straight. For example, the core can be configured as a non-straight (e.g., meandering) core to reduce the Brillouin gain in an integrated waveguide, and, therefore, to reduce a level of coherent Brillouin scattering of an electromagnetic wave propagating through the waveguide. Therefore, a core so configured can reduce the energy of a counter-propagating Stokes wave induced by the propagating electromagnetic wave as compared to an otherwise comparable waveguide having a straight core.

公开(公告)号：US09164491B2

公开(公告)日：2015-10-20

申请号：US14083067

申请日：2013-11-18

Applicant: Honeywell International Inc.

Inventor： Jeff A. Ridley ,  Robert Compton ,  Mary K. Salit ,  Jeffrey James Kriz

IPC: G04F5/14

CPC classification number: G04F5/14 ,  G04F5/145 ,  Y10T29/49117

Abstract: In an example, a chip-scale atomic clock physics package is provided. The physics package includes a body defining a cavity having a base surface and one or more side walls. The cavity includes a first step surface and a second step surface defined in the one or more side walls. A first scaffold mounted to the base surface in the cavity. One or more spacers defining an aperture therethrough are mounted to the second step surface in the cavity. A second scaffold is mounted to a first surface of the one or more spacers spans across the aperture of the one or more spacers. A third scaffold is mounted to a second surface of the one or more spacers in the cavity and spans across the aperture of the one or more spacers. Other components of the physics package are mounted to the first, second, and third scaffold.

Abstract translation: 在一个示例中，提供了芯片级原子钟物理包。 物理包装件包括限定具有基面和一个或多个侧壁的空腔的主体。 空腔包括限定在一个或多个侧壁中的第一台阶表面和第二台阶表面。 安装在空腔中的基面的第一脚手架。 限定穿过其中的孔的一个或多个间隔件安装到空腔中的第二台阶表面。 第二个支架安装在穿过一个或多个间隔物的孔的一个或多个间隔物的第一表面上。 第三支架安装到空腔中的一个或多个隔离物的第二表面，跨越一个或多个隔离物的孔。 物理包装的其他部件安装在第一，第二和第三支架上。

公开(公告)号：US20140211211A1

公开(公告)日：2014-07-31

申请号：US13751833

申请日：2013-01-28

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Tiequn Qiu ,  Lee K. Strandjord ,  Glen A. Sanders ,  Mary K. Salit

IPC: G01C19/72

CPC classification number: G01C19/727 ,  G01C19/723

Abstract: In one embodiment a system including a resonator fiber-optic gyroscope configured to measure rotation rate is provided. The resonator fiber-optic gyroscope includes a sensing resonator have a first resonance frequency for a first laser beam propagation direction and a second resonance frequency for a second laser beam propagation direction, an optical mixer coupled to an output of the sensing resonator and configured to mix an output of the sensing resonator with a reference laser, wherein the optical mixer outputs a beat signal, and a resonance tracking electronics coupled to the optical mixer. The resonance tracking electronics are configured to demodulate the beat signal at a frequency offset to produce first in-phase and quadrature demodulated information, generate R-squared information from a sum of squares of the first in-phase and quadrature demodulated information, and demodulate the R-squared information at a resonance tracking modulation frequency.

Abstract translation: 在一个实施例中，提供了一种包括被配置为测量旋转速率的谐振器光纤陀螺仪的系统。 谐振器光纤陀螺仪包括感测谐振器，其具有用于第一激光束传播方向的第一谐振频率和用于第二激光束传播方向的第二谐振频率，耦合到感测谐振器的输出并被配置为混合的光学混合器 具有参考激光器的感测谐振器的输出，其中所述光学混合器输出拍频信号，以及耦合到所述光学混合器的谐振跟踪电子装置。 共振跟踪电子设备被配置为以频率偏移解调拍频信号以产生第一同相和正交解调信息，从第一同相和正交解调信息的平方和产生R平方信息，并且解调 谐振跟踪调制频率下的R平方信息。

公开(公告)号：US10401439B2

公开(公告)日：2019-09-03

申请号：US15453061

申请日：2017-03-08

Applicant: Honeywell International Inc.

Inventor： Marc Smiciklas ,  Robert Compton ,  Mary K. Salit

IPC: G01R33/032 ,  G01R33/035

Abstract: In one embodiment, a method is provided. The method comprises: spin polarizing alkali atoms in a cavity; shifting resonant frequencies of the cavity at a rate proportional to a magnitude of a magnetic field incident upon the cavity; reflecting modulated right hand circularly polarized light and modulated left hand circularly polarized light from the cavity; transforming the reflected modulated right hand circularly polarized light to reflected modulated vertically polarized light, and the reflected modulated left hand circularly polarized light to reflected modulated horizontally polarized modulated light; generating a first error signal having an amplitude proportional to the shift in a resonant frequency corresponding to the reflected modulated vertically polarized light and a sign indicative of whether a frequency of the reflected modulated vertically polarized light is above or below the corresponding resonant frequency; generating a second error signal having an amplitude proportional to the shift in a resonant frequency corresponding to the reflected modulated horizontally polarized light and a sign indicative of whether a frequency of the reflected modulated horizontally polarized light is above or below the corresponding resonant frequency; adjusting a carrier frequency of the modulated right hand circularly polarized light in response to the first error signal; adjusting a carrier frequency of the modulated left hand circularly polarized light in response to the second error signal; and generating a measured Larmor frequency.

公开(公告)号：US20180246175A1

公开(公告)日：2018-08-30

申请号：US15453061

申请日：2017-03-08

Applicant: Honeywell International Inc.

Inventor： Marc Smiciklas ,  Robert Compton ,  Mary K. Salit

IPC: G01R33/032

CPC classification number: G01R33/032 ,  G01R33/035

Abstract: In one embodiment, a method is provided. The method comprises: spin polarizing alkali atoms in a cavity; shifting resonant frequencies of the cavity at a rate proportional to a magnitude of a magnetic field incident upon the cavity; reflecting modulated right hand circularly polarized light and modulated left hand circularly polarized light from the cavity; transforming the reflected modulated right hand circularly polarized light to reflected modulated vertically polarized light, and the reflected modulated left hand circularly polarized light to reflected modulated horizontally polarized modulated light; generating a first error signal having an amplitude proportional to the shift in a resonant frequency corresponding to the reflected modulated vertically polarized light and a sign indicative of whether a frequency of the reflected modulated vertically polarized light is above or below the corresponding resonant frequency; generating a second error signal having an amplitude proportional to the shift in a resonant frequency corresponding to the reflected modulated horizontally polarized light and a sign indicative of whether a frequency of the reflected modulated horizontally polarized light is above or below the corresponding resonant frequency; adjusting a carrier frequency of the modulated right hand circularly polarized light in response to the first error signal; adjusting a carrier frequency of the modulated left hand circularly polarized light in response to the second error signal; and generating a measured Larmor frequency.

公开(公告)号：US20180081206A1

公开(公告)日：2018-03-22

申请号：US15636474

申请日：2017-06-28

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Mary K. Salit

IPC: G02F1/125 ,  G02B6/122 ,  G02B6/132 ,  G02B6/136 ,  G01C19/72

CPC classification number: G02F1/125 ,  G01C19/721 ,  G02B6/036 ,  G02B6/122 ,  G02B6/132 ,  G02B6/136 ,  G02B2006/12176 ,  G02F2201/06

Abstract: An embodiment of a waveguide has a Brillouin bandwidth, and includes cladding and a core. The cladding includes first layers of a first material, each first layer having a physical characteristic of approximately a first value, and includes second layers of a second material, each second layer having the physical characteristic of approximately a second value, the second layers alternating with the first layers such that the Brillouin bandwidth is wider than the Brillouin bandwidth would be if the cladding excluded the first layers or excluded the second layers. For example, the first and second cladding layers can be formed from different materials, or can be formed having different values of a physical characteristic such as thickness, acoustic velocity, or index of refraction. Such a waveguide can facilitate alignment of the waveguide's optical bandwidth with the waveguide's Brillouin bandwidth because the Brillouin bandwidth is widened compared to conventional waveguides.