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公开(公告)号：US20250012572A1
公开(公告)日：2025-01-09
申请号：US18348169
申请日：2023-07-06
Applicant: Honeywell International Inc.
Inventor： Jianfeng Wu , Tiequn Qiu , Glen A. Sanders , Steven Tin , Matthew Wade Puckett
IPC: G01C19/72
Abstract: A gyroscope comprises first and second light sources that emit first and second beams with broadband spectrums, and a waveguide arrangement that communicates with the light sources. A resonator communicates with the waveguide arrangement to receive the beams. A first circulator is coupled to the waveguide arrangement between the first light source and the resonator. A second circulator is coupled to the waveguide arrangement between the second light source and the resonator. A first rate detector communicates with the resonator through the first circulator, and a second rate detector communicates with the resonator through the second circulator. The rate detectors produce rate measurements based on a detected resonance frequency shift of the beams in the resonator caused by rotation of the gyroscope. Outputs of the rate detectors are used to calculate a rotation rate that is corrected for errors due to a time varying pathlength change in the resonator.
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公开(公告)号：US20240272283A1
公开(公告)日：2024-08-15
申请号：US18631963
申请日：2024-04-10
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Steven Tin , Chad Fertig
CPC classification number: G01S7/4818 , G01N21/47 , G02B6/12007 , G02B6/4201 , G02F1/225 , G02F2203/055
Abstract: Embodiments relating to an integrated photonics air data system are disclosed. A light beam from a laser source is routed to a plurality of tunable optical filters operative to transmit the light beam to one of a plurality of emitting grating couplers at any given time. The tunable optical filters are configured such that the light beam is emitted into the region of interest at different times from each of the emitting grating couplers. A passive optical filter array is configured to receive scattered light from the emitted light beam. The passive optical filter array comprises a plurality of optical notch filters operative for frequency selection, and a plurality of optical detectors each respectively coupled to an output of one of the optical notch filters. The passive optical filter array is operative to perform frequency spectrum decomposition of the received scattered light into a plurality of signals.
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公开(公告)号：US20240271937A1
公开(公告)日：2024-08-15
申请号：US18166792
申请日：2023-02-09
Applicant: Honeywell International Inc.
Inventor： Jianfeng Wu , Tiequn Qiu , Matthew Wade Puckett
IPC: G01C19/72
CPC classification number: G01C19/727 , G01C19/722
Abstract: Techniques are provided for diminishing bias error, in a resonator optical gyroscope, due to an undesired, parasitic optical mode which is orthogonal to a desired optical mode. Energy levels of the undesired, parasitic mode can be diminished utilizing polarizing beam splitters each of which suppresses energy of the undesired, parasitic mode of a clockwise or a counterclockwise optical signal more than energy of the desired mode of the CW optical signal. Optionally, one or more components of a travelling wave resonator system are configured to suppress energy of the undesired, parasitic mode of a clockwise and/or a counterclockwise optical signal more than energy of the desired mode of the respective optical signal(s). Optionally, the desired optical mode is either a transverse magnetic (TM) mode or a transverse electric (TE) mode, and the undesired, parasitic optical mode is respectively the TE mode or the TM mode.
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公开(公告)号：US11940715B2
公开(公告)日：2024-03-26
申请号：US17900688
申请日：2022-08-31
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Chad Fertig , Matthew Robbins , Jad Salman
CPC classification number: G02F1/3548 , G02F1/3775 , H01S3/0092 , H01S3/109
Abstract: A nonlinear wave mixing system with grating assisted phase matching is provided. The system includes a pump laser and a nonlinear waveguide. The pump laser is used to generate pump light at a select wavelength. The nonlinear waveguide is configured to generate produced light from the pump light that is directed into the nonlinear waveguide. The nonlinear waveguide includes at least one backward grating that is configured to diffract the produced light in a backward direction relative to a direction the produced light travels in the nonlinear waveguide to reach the backward grating. The backward grating having a grating momentum that generates counter-propagating phase matching in the produced light.
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公开(公告)号：US20230408765A1
公开(公告)日：2023-12-21
申请号：US17843485
申请日：2022-06-17
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Chad Hoyt , Karl D. Nelson , Jianfeng Wu
CPC classification number: G02B6/1228 , G02B6/124 , G02B2006/12107
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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Patent Agency Ranking
公开(公告)号：US11815718B2
公开(公告)日：2023-11-14
申请号：US17531441
申请日：2021-11-19
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Chad Fertig , Steven Tin
CPC classification number: G02B6/124 , G02B6/12002 , G02B6/14 , G02B6/34
Abstract: Techniques relating to an improved optical waveguide are described. The optical waveguide includes an upper and lower waveguide that each comprise a first and second layer, in which photons are transferred from the lower waveguide to the upper waveguide. A structured subwavelength coupling region is included, for example, in the first upper waveguide layer. The fill factor of the subwavelength grating coupling region is increased in the direction of light propagation to increase the index of refraction of the structured subwavelength coupling region and therefore improve photon transfer from the lower waveguide. Additionally, the width of the optical waveguide (at least along the structured subwavelength coupling region) remains constant as the fill factor increases.
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公开(公告)号：US20230012476A1
公开(公告)日：2023-01-19
申请号：US17374745
申请日：2021-07-13
Applicant: Honeywell International Inc.
Inventor： Chad Fertig , Matthew Wade Puckett , Matthew Robbins , Neil A. Krueger
IPC: G02F1/365
Abstract: Improved architectures and related methods for enhancing entangled photon generation in optical systems are described. Photons from a light source are coupled from the fundamental mode into an optical resonator in a higher-order mode. The optical resonator comprises a photon generation portion configured to generate entangled photons from the coupled photons. The entangled photons are selectively extracted from the optical resonator in the fundamental mode while the remaining photons propagate through the optical resonator mode and combine with the source photons entering the optical resonator. While the source photons propagating or entering the optical resonator resonate within the optical resonator, the entangled photons are not resonant with the optical resonator, and are selectively extracted before traversing a complete cycle in the optical resonator. Extracted entangled photons can then be output for use in, for example, a communication system.
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公开(公告)号：US11486706B2
公开(公告)日：2022-11-01
申请号：US16858272
申请日：2020-04-24
Applicant: Honeywell International Inc.
Inventor： Jianfeng Wu , Matthew Wade Puckett , Karl D. Nelson
Abstract: A method for reducing or eliminating bias instability in a SBS laser gyroscope comprises introducing a first pump signal propagating in a CW direction, and a second pump signal propagating in a CCW direction in a resonator; generating a CCW first-order SBS signal and a CW first-order SBS signal in the resonator; increasing a power level of the first pump signal above a threshold level such that the CW first-order SBS signal generates a CCW second-order SBS signal; and increasing a power level of the second pump signal above the threshold level such that the CCW first-order SBS signal generates a CW second-order SBS signal. Above the threshold level, an intensity fluctuation of the first-order SBS signals disappear and their DC power are clamped at substantially the same power level. A Kerr effect bias instability of the SBS laser gyroscope is reduced or eliminated by the clamped first-order SBS signals.
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公开(公告)号：US20220321228A1
公开(公告)日：2022-10-06
申请号：US17217628
申请日：2021-03-30
Applicant: Honeywell International Inc.
Inventor： Chad Fertig , Matthew Wade Puckett
Abstract: Systems and embodiments for a multi-pixel waveguide optical receiver are described herein. In certain embodiments, a system includes an emitter that emits laser light towards a surface. The system also includes a receiver that passively receives reflected laser light that is a portion of the laser light reflected from the surface, wherein the receiver has multiple pixels having a size that is smaller than an expected optical speckle size, wherein the expected optical speckle size corresponds to a region on the receiver where the reflected laser light has a substantially uniform spatial phase. Additionally, the system includes a combiner configured to combine optical fields from each pixel in the multiple pixels into an output that supports a number of modes that is equal to a number of pixels in the multiple pixels. Moreover, the system includes a photodetector configured to receive light from the output.
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10.发明授权公开(公告)号：US11429010B1
公开(公告)日：2022-08-30
申请号：US17412002
申请日：2021-08-25
Applicant: Honeywell International Inc.
Inventor： Matthew Wade Puckett , Jianfeng Wu , Karl D. Nelson , Chad Hoyt
Abstract: Systems and methods for a tunable radio frequency synthesizer utilizing optical frequency combs are provided. In one embodiment, an RF signal generator comprises: an SBS pump laser segment including a first and second SBS pump laser each generating SBS laser light at different respective frequencies; a TE/TM dual comb resonator comprising a comb optical resonator coupled to the first and second SBS pump lasers, wherein the comb optical resonator generates a pair of counter-propagating optical frequency combs of different polarities from the SBS laser light; a filter resonator segment configured to provide feedback to the TE/TM dual comb resonator to lock a relative position of the pair of counter-propagating optical frequency combs, the filter resonator comprising a tunable optical filter to output a discrete tuned RF signal output based on a comb line pair that includes a single comb line from each of the pair of counter-propagating optical frequency combs.
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