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11.发明授权公开(公告)号：US09772187B2
公开(公告)日：2017-09-26
申请号：US15052490
申请日：2016-02-24
Applicant: Honeywell International Inc.
Inventor： Mary K. Salit , Jianfeng Wu , Tiequn Qiu
CPC classification number: G01C19/661 , H01S3/083 , H01S3/30
Abstract: A ring laser gyroscope (RLG) is provided. The RLG includes a primary resonator, a secondary resonator, and an optical source to provide a pump field. The pump field in the primary resonator stimulates an optical gain curve at a first stokes wave frequency. A first order SBS field stimulates a second optical gain curve at a second stokes wave frequency. The second order SBS gain gives rise to a frequency-shifted field propagating in the first direction. The fraction of the pump field that couples out of the primary resonator, through the secondary resonator, and out of the secondary resonator is larger than the fraction of: the first order SBS field that couples out of the primary resonator, through the secondary resonator, and out of the secondary resonator; and a second order SBS field that couples out of the primary resonator, through the secondary resonator, and out of the secondary resonator.
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12.发明申请公开(公告)号：US20170241784A1
公开(公告)日：2017-08-24
申请号：US15052490
申请日：2016-02-24
Applicant: Honeywell International Inc.
Inventor： Mary K. Salit , Jianfeng Wu , Tiequn Qiu
CPC classification number: G01C19/661 , H01S3/083 , H01S3/30
Abstract: A ring laser gyroscope (RLG) is provided. The RLG includes a primary resonator, a secondary resonator, and an optical source to provide a pump field. The pump field in the primary resonator stimulates an optical gain curve at a first stokes wave frequency. A first order SBS field stimulates a second optical gain curve at a second stokes wave frequency. The second order SBS gain gives rise to a frequency-shifted field propagating in the first direction. The fraction of the pump field that couples out of the primary resonator, through the secondary resonator, and out of the secondary resonator is larger than the fraction of: the first order SBS field that couples out of the primary resonator, through the secondary resonator, and out of the secondary resonator; and a second order SBS field that couples out of the primary resonator, through the secondary resonator, and out of the secondary resonator.
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公开(公告)号：US09733084B2
公开(公告)日：2017-08-15
申请号：US14882101
申请日：2015-10-13
Applicant: Honeywell International Inc.
Inventor： Mary K. Salit , Jianfeng Wu , Tiequn Qiu
IPC: G01C19/66
CPC classification number: G01C19/661 , G01C19/66
Abstract: A ring laser gyroscope is provided. The ring laser gyroscope includes an optical ring resonator, an optical source to provide a pump beam at a pump frequency, a beat detector, and an optical clock detector. The pump beam is coupled to the optical ring resonator in the first direction and stimulates a first optical gain curve at a first stokes wave frequency downshifted by a Brillouin stokes frequency from the pump frequency. A first order stimulated Brillouin scattering (SBS) beam propagates in the second direction and a second order SBS beam propagates in the first direction. The beat detector produces an optical beat signal that varies as a function of a frequency difference between the first order SBS beam and the second order SBS beam. The optical clock detector generates a reference frequency signal based on two co-propagating beams.
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14.发明申请公开(公告)号：US20170067743A1
公开(公告)日：2017-03-09
申请号：US14882101
申请日：2015-10-13
Applicant: Honeywell International Inc.
Inventor： Mary K. Salit , Jianfeng Wu , Tiequn Qiu
IPC: G01C19/66
CPC classification number: G01C19/661 , G01C19/66
Abstract: A ring laser gyroscope is provided. The ring laser gyroscope includes an optical ring resonator, an optical source to provide a pump beam at a pump frequency, a beat detector, and an optical clock detector. The pump beam is coupled to the optical ring resonator in the first direction and stimulates a first optical gain curve at a first stokes wave frequency downshifted by a Brillouin stokes frequency from the pump frequency. A first order stimulated Brillouin scattering (SBS) beam propagates in the second direction and a second order SBS beam propagates in the first direction. The beat detector produces an optical beat signal that varies as a function of a frequency difference between the first order SBS beam and the second order SBS beam. The optical clock detector generates a reference frequency signal based on two co-propagating beams.
Abstract translation: 提供环形激光陀螺仪。 环形激光陀螺仪包括光环谐振器，提供泵浦频率的泵浦光束的光源，节拍检测器和光学时钟检测器。 泵浦光束在第一方向上耦合到光环谐振器，并且以从泵浦频率被布里渊斯托克斯频率降低的第一斯托克斯波频率刺激第一光学增益曲线。 一阶受激布里渊散射（SBS）光束在第二方向上传播，二阶SBS光束沿第一方向传播。 节拍检测器产生作为第一级SBS波束和第二级SBS波束之间的频率差的函数而变化的光学差拍信号。 光时钟检测器基于两个共同传播的波束产生参考频率信号。
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公开(公告)号：US20140375313A1
公开(公告)日：2014-12-25
申请号：US13922376
申请日：2013-06-20
Applicant: Honeywell International Inc.
Inventor： Mary K. Salit , Kenneth Salit
IPC: G01R33/26
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.
Abstract translation: 射频原子磁强计包括激光器，光电检测器，蒸汽室，其中蒸气室处于激光和光电检测器之间的激光光路中，圆形偏振器被配置为使由激光器发射的激光圆偏振，其中 圆偏振激光束被配置为泵送到取向状态，蒸气室中的原子旋转并且探测蒸气室的原子，其中探测包括检测局部射频场; 以及包括至少一个DC场线圈的一组直流（DC）场线圈，其中所述一组DC场线圈被配置为产生相对于由所述DC场线发射的激光的光轴以45度定向的DC磁场 激光并指向蒸气室; 所述一组DC场线圈还被配置为具有可调节的DC磁场强度。
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Patent Agency Ranking
公开(公告)号：US10254481B2
公开(公告)日：2019-04-09
申请号：US15636480
申请日：2017-06-28
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Mary K. Salit
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.
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公开(公告)号：US20180081112A1
公开(公告)日：2018-03-22
申请号：US15591747
申请日：2017-05-10
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Tiequn Qiu , Mary K. Salit , Jianfeng Wu
CPC classification number: G02B6/122 , G01C19/661 , G02B6/136 , G02B2006/12138 , G02F1/025 , G02F1/125 , G02F1/353 , G10K11/24
Abstract: A waveguide device comprises a substrate having an upper surface and a first width; a cladding layer over the upper surface of the substrate, the cladding layer comprising a first material having a first refractive index, wherein the cladding layer has a second width that is less than the first width; and an optical core surrounded by the cladding layer, the optical core comprising a second material having a second refractive index that is higher that the first refractive index such that an optical signal will propagate through the optical core. The cladding layer that surrounds the optical core has a thickness configured to substantially confine acoustic waves to the cladding layer when the optical signal propagates through the optical core.
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18.发明申请SYSTEMS AND METHODS FOR AN OPTICAL FREQUENCY COMB STIMULATED BRILLOUIN SCATTERING GYROSCOPE WITH RIGID OPTICAL WAVEGUIDE RESONATOR 审中-公开具有刚性光波导谐振器的光学频率混合式荧光散射陀螺仪的系统和方法公开(公告)号：US20160204571A1
公开(公告)日：2016-07-14
申请号：US14680331
申请日：2015-04-07
Applicant: Honeywell International Inc.
Inventor： Jianfeng Wu , Mary K. Salit , Lee K. Strandjord , Glen A. Sanders , Tiequn Qiu
Abstract: Systems and methods for an optical frequency comb stimulated Brillouin scattering gyroscope with a rigid optical waveguide resonator are provided. In one embodiment, a system comprises: a light source that produces an optical frequency comb comprising a multiple-frequency light field; a rigid optical waveguide resonator coupled to the light source, wherein a recirculating optical frequency comb produced from the optical frequency comb propagates in a first direction around the rigid optical waveguide resonator and generates within the rigid optical waveguide a SBS light field comprising at least one SBS frequency component, and wherein one or more optical frequency components of the recirculating optical frequency comb are locked on resonance peaks of the rigid optical waveguide resonator; and an optical mixer configured to produce an optical beat signal that varies as a function of a frequency difference between the stimulated Brillouin scattering light field and the recirculating optical frequency comb.
Abstract translation: 提供了具有刚性光波导谐振器的光学频率梳状受激布里渊散射陀螺仪的系统和方法。 在一个实施例中，系统包括：产生包括多频光场的光频梳的光源; 耦合到所述光源的刚性光波导谐振器，其中由所述光频梳产生的再循环光频梳在所述刚性光波导谐振器周围沿第一方向传播，并且在所述刚性光波导内产生包括至少一个SBS的SBS光场 频率分量，并且其中所述再循环光频梳的一个或多个光频分量锁定在所述刚性光波导谐振器的共振峰上; 以及配置成产生根据被激发的布里渊散射光场和再循环光频梳之间的频率差而变化的光学差拍信号的光学混合器。
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公开(公告)号：US09115994B2
公开(公告)日：2015-08-25
申请号：US13916680
申请日：2013-06-13
Applicant: Honeywell International Inc.
Inventor： Lee K. Strandjord , Mary K. Salit
IPC: G01C19/72 , H04B10/548
CPC classification number: G01C19/726 , G01C19/721 , G01C19/723 , G01C19/727 , H04B10/548
Abstract: Systems and methods for sideband heterodyning detection are provided. In certain embodiments a system includes an optical resonator configured to allow light to resonate therein; at least one light source that is controlled to form multiple optical fields, wherein each field is phase or frequency modulated at a common modulation frequency and is at a different frequency. The system also comprises multiple heterodyne modulators that phase or frequency modulate a respective field in the multiple fields at a respective heterodyne frequency to form multiple sidebands, wherein the corresponding heterodyne frequency is different for each heterodyne modulator; at least one coupler that couples the multiple sidebands into the optical resonator; and a feedback control that is configured to detect the multiple sidebands transmitted out of the resonator to create multiple detected sideband signals and adjust frequencies of the plurality of fields based on the multiple detected sideband signals.
Abstract translation: 提供了边带外差检测的系统和方法。 在某些实施例中，系统包括被配置为允许光在其中谐振的光学谐振器; 被控制以形成多个光场的至少一个光源，其中每个场以公共调制频率进行相位或频率调制，并且处于不同的频率。 该系统还包括多个外差调制器，其以相应的外差频率相位或频率地调制多个场中的相应场，以形成多个边带，其中相应的外差频率对于每个外差调制器是不同的; 将所述多个边带耦合到所述光学谐振器中的至少一个耦合器; 以及反馈控制，其被配置为基于所检测到的多个边带信号来检测从所述谐振器发送的所述多个边带，以创建多个检测到的边带信号并且调整所述多个场的频率。
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公开(公告)号：US09030655B2
公开(公告)日：2015-05-12
申请号：US13758370
申请日：2013-02-04
Applicant: Honeywell International Inc.
Inventor： Jennifer S. Strabley , Kenneth Salit , Mary K. Salit , Karl D. Nelson , Robert Compton
CPC classification number: G01P21/00 , G01C19/58 , G01C21/16 , G01P15/08 , G01P15/093
Abstract: An apparatus for inertial sensing is provided. The apparatus comprises at least one atomic inertial sensor, and one or more micro-electrical-mechanical systems (MEMS) inertial sensors operatively coupled to the atomic inertial sensor. The atomic inertial sensor and the MEMS inertial sensors operatively communicate with each other in a closed feedback loop.
Abstract translation: 提供了一种用于惯性感测的装置。 该装置包括至少一个原子惯性传感器和可操作地耦合到原子惯性传感器的一个或多个微电机械系统（MEMS）惯性传感器。 原子惯性传感器和MEMS惯性传感器在闭合反馈回路中可操作地相互连通。
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