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公开(公告)号：US11119163B2
公开(公告)日：2021-09-14
申请号：US16786495
申请日：2020-02-10
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Neal Eldrich Solmeyer , Steven Tin , Robert Compton
Abstract: 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：US20210072026A1
公开(公告)日：2021-03-11
申请号：US16566553
申请日：2019-09-10
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Neil A. Krueger , Glen A. Sanders
IPC: G01C19/72
Abstract: A resonant fiber optic gyroscope (RFOG) comprises two integrated photonics interfaces coupling the optical resonator coil to the multi-frequency laser source that drives the RFOG; wherein the two integrated photonics interfaces comprise a first waveguide layer and a second waveguide layer wherein the first waveguide layer comprises two waveguide branches which come together to form a single waveguide branch; the second waveguide layer comprises two waveguide branches which remain separate from each other; and wherein the waveguide structure is configured to match an integrated photonics mode to a fiber mode supported by an optical fiber.
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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：US20200295422A1
公开(公告)日：2020-09-17
申请号：US16298969
申请日：2019-03-11
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Neil A. Krueger
Abstract: An embodiment of an optical structure includes a core having first and second ends and a first side with a first grating profile having a first phase shift distributed between the first and second ends, and a cladding disposed around the core. Such an optical structure can be used in an electro-optic modulator (EOM), and can render the EOM smaller in size than currently available EOMs.
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公开(公告)号：US10578722B2
公开(公告)日：2020-03-03
申请号：US15604390
申请日：2017-05-24
Applicant: Honeywell International Inc.
Inventor： Jianfeng Wu , Matthew Wade Puckett , Tiequn Qiu , Glen A. Sanders
IPC: G01S17/89 , G06T5/00 , G01S7/4865 , G01S17/10 , G01S7/486 , G01S7/51 , G01S7/481 , G01S17/08 , G01S7/487 , G01S7/493 , G01S17/18
Abstract: In one embodiment, a method of operating a glare reduction and ranging optical system having an image sensor with pixels is provided. The method comprises: generating a first light beam with a power spectral density; generating a reference light beam from the first light beam; emitting the first light beam with a power spectral density; collecting scattered light and reflected light respectively reflected from a scattering medium and a target; determining a power spectral density of the first light beam so that the first light beam is substantially coherent with the scattered light; adjusting the power spectral density of the first light beam so that the reference light beam is substantially coherent with the scattered light; on a pixel by pixel basis, modifying the amplitude and phase of the reference light beam to minimize the DC light power at each pixel; storing the modified amplitude and phase that results in a substantially minimum detected DC light power for each pixel; increasing power spectral density of a second reference light beam; modulating the amplitude of the second reference light beam with a sinusoidal signal having a frequency; on a pixel by pixel basis, detecting the substantially maximum signal level at the modulation frequency on a pixel by adjusting a second delay of the reference light beam; and determining range to a target.
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Patent Agency Ranking
公开(公告)号：US20190258004A1
公开(公告)日：2019-08-22
申请号：US15900361
申请日：2018-02-20
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett
Abstract: To reduce or eliminate crosstalk between adjacent integrated optical waveguides, an embodiment of an integrated structure includes, between the optical waveguides, a metal isolation region configured to redirect a signal leaking from one waveguide away from the other waveguide, to absorb the leaking signal, or both to redirect and absorb respective portions of the leaking signal. For example, such an integrated structure includes a cladding, first and second optical cores, and a metal isolation region. The optical cores are disposed in the cladding, and the isolation region is disposed in the cladding between, and separate from, the cores. Including a metal isolation region between adjacent optical waveguides can reduce crosstalk between the waveguides more than coating the waveguides with a metal because the metal coating typically is not thick enough to redirect or absorb enough of a leakage signal to reduce crosstalk to a suitable level.
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77.发明申请公开(公告)号：US20190017824A1
公开(公告)日：2019-01-17
申请号：US15611742
申请日：2017-06-01
Applicant: Honeywell International Inc.
Inventor： Tiequn Qiu , Jianfeng Wu , Matthew Wade Puckett
Abstract: In one embodiment, a method is provided. The method comprises transmitting a first laser pump signal to an optical resonator; adjusting a frequency of the first laser pump signal; generating a first order Stokes signal from the first laser pump signal in an optical resonator; measuring a first beat signal frequency; ceasing transmission of the first laser pump signal to the optical resonator; transmitting a second laser pump signal to the optical resonator; adjusting a frequency of the second laser pump signal; generating a first order Stokes signal from the second laser pump signal in the optical resonator; and measuring a second beat signal frequency; ceasing transmission of the second laser pump signal to the optical resonator.
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公开(公告)号：US20180275254A1
公开(公告)日：2018-09-27
申请号：US15604390
申请日：2017-05-24
Applicant: Honeywell International Inc.
Inventor： Jianfeng Wu , Matthew Wade Puckett , Tiequn Qiu , Glen A. Sanders
CPC classification number: G01S7/4865 , G01S7/4816 , G01S7/4868 , G01S7/4876 , G01S7/493 , G01S7/51 , G01S17/08 , G01S17/10 , G01S17/107 , G01S17/89 , G06T5/003
Abstract: In one embodiment, a method of operating a glare reduction and ranging optical system having an image sensor with pixels is provided. The method comprises: generating a first light beam with a power spectral density; generating a reference light beam from the first light beam; emitting the first light beam with a power spectral density; collecting scattered light and reflected light respectively reflected from a scattering medium and a target; determining a power spectral density of the first light beam so that the first light beam is substantially coherent with the scattered light; adjusting the power spectral density of the first light beam so that the reference light beam is substantially coherent with the scattered light; on a pixel by pixel basis, modifying the amplitude and phase of the reference light beam to minimize the DC light power at each pixel; storing the modified amplitude and phase that results in a substantially minimum detected DC light power for each pixel; increasing power spectral density of a second reference light beam; modulating the amplitude of the second reference light beam with a sinusoidal signal having a frequency; on a pixel by pixel basis, detecting the substantially maximum signal level at the modulation frequency on a pixel by adjusting a second delay of the reference light beam; and determining range to a target.
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公开(公告)号：US12188998B2
公开(公告)日：2025-01-07
申请号：US18053535
申请日：2022-11-08
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Neal Eldrich Solmeyer , Mary Salit , Jianfeng Wu , Matthew Robbins
IPC: G01R33/32 , G01R33/032 , G02F1/39 , H01S3/091 , H01S3/108
Abstract: A photonics device for threshold magnetometry includes an absorbent material with nonlinear optical susceptibility, such as a diamond material with nitrogen vacancy defects, that is disposed in an optical resonator. The optical resonator receives light from an input source and includes nonlinear optical properties that enable the resonator to undergo a nonlinear photon generation process at a certain threshold power level to generate photons at distinct frequencies from the input light. The absorbent material absorbs photons entering the resonator when excited, which causes the threshold power level to shift as a function of the absorption. This may cause the optical resonator to stop generating photons via the nonlinear photon generation process and output a change in power. The change in power can be used to determine the characteristics of a present magnetic field.
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80.发明申请公开(公告)号：US20240426610A1
公开(公告)日：2024-12-26
申请号：US18341281
申请日：2023-06-26
Applicant: Honeywell International Inc.
Inventor： Tiequn Qiu , Jianfeng Wu , Matthew Wade Puckett , Steven Tin , Glen A. Sanders
Abstract: Various examples of a closed-loop optical gyroscope are disclosed. The closed-loop optical gyroscope includes a broadband light source configured to generate broadband optical signal(s). The broadband optical signal(s) propagate in an optical resonator and are coupled in and out of the optical resonator by optical couplers. A phase modulator applies phase modulation to the optical signal(s) based on a sawtooth modulation signal. The optical signal(s) repropagate in the optical resonator in a different direction. The optical signal(s) are then received and analyzed to determine parameter(s) of the phase modulator. One or more processors configure the phase modulator based on the determined parameter(s).
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