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公开(公告)号：US20240369766A1
公开(公告)日：2024-11-07
申请号：US18778036
申请日：2024-07-19
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Chad Hoyt , Karl D. Nelson , Jianfeng Wu
Abstract: Techniques are provided for implementing a low insertion loss optical coupler utilizing a low confinement planar optical waveguide and two high confinement planar optical waveguides. The optical coupler efficiently couples an optical signal with a cross section greater than either high confinement planar optical waveguide.
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2.发明公开公开(公告)号：US20240258769A1
公开(公告)日：2024-08-01
申请号：US18162517
申请日：2023-01-31
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Neal Eldrich Solmeyer , Karl D. Nelson , Jianfeng Wu , Mary Salit
CPC classification number: H01S5/141 , H01S3/10092 , H01S5/1007 , H01S5/12 , H01S5/323 , H01S5/50
Abstract: A laser device comprises a gain chip that emits light, and a photonics chip optically coupled to the gain chip. The photonics chip comprises a waveguide platform including an input waveguide optically coupled to the gain chip. The input waveguide optical communicates with a cascaded arrangement of waveguide grating structures on the waveguide platform. The grating structures comprise a first grating structure that produces a single resonance frequency within a stopband, and a second grating structure in optical communication with the first grating structure. The second grating structure diffracts a narrowband resonance, overlapping with the stopband of the first grating structure, back toward the gain chip, while passing any light outside of the stopband of the first grating structure out of the waveguide platform. The grating structures cooperate to yield a single resonance frequency that feeds back into the gain chip to produce a self-injection lock for the laser device.
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公开(公告)号：US11506495B2
公开(公告)日：2022-11-22
申请号：US16940223
申请日：2020-07-27
Applicant: Honeywell International Inc.
Inventor： Jianfeng Wu , Karl D. Nelson , Matthew Wade Puckett , Glen A. Sanders , Lee K. Strandjord
Abstract: Systems and methods for an injection locking RFOG are described herein. In certain embodiments, a system includes an optical resonator. The system also includes a laser source configured to launch a first laser for propagating within the optical resonator in a first direction and a second laser for propagating within the optical resonator in a second direction that is opposite to the first direction, wherein the first laser is emitted at a first launch frequency and the second laser is emitted at a second launch frequency. Moreover, the system includes at least one return path that injects a first optical feedback for the first laser and a second optical feedback for the second laser, from the optical resonator, into the laser source, wherein the first and second optical feedbacks respectively lock the first and second launch frequencies to first and second resonance frequencies of the optical resonator.
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公开(公告)号：US20220026211A1
公开(公告)日：2022-01-27
申请号：US16940223
申请日：2020-07-27
Applicant: Honeywell International Inc.
Inventor： Jianfeng Wu , Karl D. Nelson , Matthew Wade Puckett , Glen A. Sanders , Lee K. Strandjord
Abstract: Systems and methods for an injection locking RFOG are described herein. In certain embodiments, a system includes an optical resonator. The system also includes a laser source configured to launch a first laser for propagating within the optical resonator in a first direction and a second laser for propagating within the optical resonator in a second direction that is opposite to the first direction, wherein the first laser is emitted at a first launch frequency and the second laser is emitted at a second launch frequency. Moreover, the system includes at least one return path that injects a first optical feedback for the first laser and a second optical feedback for the second laser, from the optical resonator, into the laser source, wherein the first and second optical feedbacks respectively lock the first and second launch frequencies to first and second resonance frequencies of the optical resonator.
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公开(公告)号：US20210102809A1
公开(公告)日：2021-04-08
申请号：US16595320
申请日：2019-10-07
Applicant: Honeywell International Inc.
Inventor： Neal Eldrich Solmeyer , Karl D. Nelson , Robert Compton
Abstract: In an example, an optical gimbal is described, the optical gimbal comprising: a pulse generator configured to generate at least two coherent beam splitting pulses; a first optical beam director configured to tilt the vector of the beam splitting pulses by an angle θ; an atom source configured to allow the beam splitting pulses to manipulate trapped atoms within the atom source; a processor configured to receive the angle θ, and control the pulse generator and the beam director; a detector coupled to the atom source configured to measure a final population of the atoms in different states.
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Patent Agency Ranking
公开(公告)号：US10928200B1
公开(公告)日：2021-02-23
申请号：US16665939
申请日：2019-10-28
Applicant: Honeywell International Inc.
Inventor： Jianfeng Wu , Matthew Wade Puckett , Karl D. Nelson
Abstract: A SBS laser system comprises at least one pump laser that emits a pump beam, and an intensity modulator in communication with the pump laser. The intensity modulator modulates an intensity of the pump beam and transmits an intensity modulated beam. A resonator, in communication with the intensity modulator, is configured to receive the intensity modulated beam such that it travels in a first direction. When optical frequency of the intensity modulated beam matches resonance frequency of the resonator, a power density increases such that beyond a certain threshold power, the intensity modulated beam produces lasing of a first order Brillouin wave including a SBS wave having a SBS gain peak. The SBS wave travels in an opposite second direction in the resonator. A control unit eliminates or reduces the intensity modulation of the beam by minimizing the frequency gap between the SBS gain peak and an SBS resonance peak.
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公开(公告)号：US09766071B2
公开(公告)日：2017-09-19
申请号：US14717782
申请日：2015-05-20
Applicant: Honeywell International Inc.
Inventor： Robert Compton , Karl D. Nelson , Chad Fertig
CPC classification number: G01C19/723 , G01C19/60 , G01C19/64 , G01C19/721
Abstract: 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.
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公开(公告)号：US20150311048A1
公开(公告)日：2015-10-29
申请号：US14448411
申请日：2014-07-31
Applicant: Honeywell International Inc.
Inventor： Karl D. Nelson , Steven Tin
Abstract: An ion pump includes at least one electron source configured to emit electrons into the ion pump; at least one cathode positioned across the ion pump from the at least one electron source; a high-voltage grid positioned between the at least one electron source and the at least one cathode. The high-voltage grid is configured to draw the electrons in between the at least one electron source and the at least one cathode where the electrons collide with gas molecules causing the gas molecules to ionize. The at least one cathode is configured to draw ionized gas molecules toward the at least one cathode such that the ionized gas molecules are trapped by or near the at least one cathode.
Abstract translation: 离子泵包括配置成将电子发射到离子泵中的至少一个电子源; 从所述至少一个电子源穿过所述离子泵的至少一个阴极; 位于所述至少一个电子源和所述至少一个阴极之间的高压电网。 高电压栅格被配置为将电子吸引在至少一个电子源和至少一个阴极之间，其中电子与气体分子碰撞导致气体分子离子化。 所述至少一个阴极被配置成将离子化气体分子吸向所述至少一个阴极，使得所述电离气体分子被所述至少一个阴极捕获或附近。
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公开(公告)号：US09077354B2
公开(公告)日：2015-07-07
申请号：US13759444
申请日：2013-02-05
Applicant: Honeywell International Inc.
Inventor： Jennifer S. Strabley , Kenneth Salit , Karl D. Nelson , Ben Luey , Mike Anderson
Abstract: A method for reducing or eliminating clock bias in an atomic clock is provided. The method comprises cooling a population of atoms collected in the atomic clock using a laser locked at a predetermined frequency, turning off the laser, performing atomic clock spectroscopy, turning on the laser after the atomic clock spectroscopy, and relocking the frequency of the laser to an external reference cell. The population of atoms that are in each of two ground hyperfine levels is then probed using laser light that is on or near-resonant with a selected atomic transition.
Abstract translation: 提供了用于减少或消除原子钟中的时钟偏差的方法。 该方法包括使用以预定频率锁定的激光来冷却原子钟中收集的原子群，关闭激光，执行原子钟分析，在原子时钟谱之后打开激光，并将激光频率重新锁定 外部参考单元。 然后使用与所选择的原子跃迁接近或接近谐振的激光来探测在两个地面超精细水平的每一个中的原子群体。
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公开(公告)号：US20240372556A1
公开(公告)日：2024-11-07
申请号：US18311073
申请日：2023-05-02
Applicant: Honeywell International Inc.
Inventor： Chad Fertig , Karl D. Nelson
Abstract: An atomic clock is provided. An output of a tunable LO is coupled to a user output of the atomic clock. A charge pump adjusts the tunable LO with a LO tuning voltage. A follower circuit sets an output frequency of the atomic clock to a frequency of an external reference signal coupled to an external reference input. An atom referenced circuit sets the output frequency of the atomic clock to a frequency based on stored operating settings. A controller stores then current operating settings generated based on a then current external reference signal coupled to the external reference input. The controller is further configured to apply the stored then current operating settings to the atom referenced circuit when the then current external reference signal is removed from the external reference input to maintain the output frequency of the atomic clock at the output frequency set by the follower circuit.
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