公开(公告)号：US20250027772A1

公开(公告)日：2025-01-23

申请号：US18356768

申请日：2023-07-21

Applicant: Honeywell International Inc.

Inventor： Jianfeng Wu ,  Steven Tin ,  Tiequn Qiu ,  Matthew Wade Puckett ,  Glen A. Sanders ,  Chad Hoyt

IPC: G01C19/72

Abstract: Embodiments utilize an optical frequency comb generator coupled to an optical resonator of an optical gyroscope. The optical frequency comb generator generates an optical frequency comb having frequency peaks that each correspond to a respective resonance frequency of the optical resonator. A control servo can be coupled to the optical frequency comb generator and controls the optical frequency comb output from the optical frequency comb generator. In doing so, the optical frequency comb remains tuned to the resonance frequencies of the optical resonator during gyroscope operation.

公开(公告)号：US20240328783A1

公开(公告)日：2024-10-03

申请号：US18193448

申请日：2023-03-30

Applicant: Honeywell International Inc.

Inventor： Jianfeng Wu ,  Tiequn Qiu ,  Matthew Wade Puckett ,  Steven Tin ,  Glen A. Sanders

IPC: G01C19/72 ,  H01S3/00

CPC classification number: G01C19/727 ,  G01C19/722 ,  H01S3/0071

Abstract: A photonics gyroscope comprises a light source on a photonics chip that emits a broadband beam; a waveguide resonator; a reflective component; first and second detectors, the second detector coupled to the source; a RIN servo loop coupled between the second detector and the source; and a rate calculation unit. The beam is directed into the resonator such that it propagates in a CCW direction. A portion of the CCW beam is coupled out of the resonator toward the reflective component and reflected back as a reflected beam that is coupled into the resonator such that the reflected beam propagates in a CW direction. The CW beam is coupled out of the resonator to the first detector, which detects a resonance frequency shift between the CW and CCW beams. The RIN servo loop stabilizes an intensity of the beam such that bias error and noise is reduced.

公开(公告)号：US20240271936A1

公开(公告)日：2024-08-15

申请号：US18166665

申请日：2023-02-09

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Jianfeng Wu ,  Steven Tin ,  Tiequn Qiu

IPC: G01C19/66

CPC classification number: G01C19/661

Abstract: Techniques are provided for implementing and using a high quality factor travelling wave resonator configured to propagate a transverse magnetic mode optical signals and suppress transverse electric mode optical signals. The travelling wave resonator may be used in a resonator optical gyroscope.

公开(公告)号：US20240184053A1

公开(公告)日：2024-06-06

申请号：US18061695

申请日：2022-12-05

Applicant: Honeywell International Inc.

Inventor： Jianfeng Wu ,  Matthew Wade Puckett ,  Steven Tin ,  Tiequn Qiu

IPC: G02B6/35 ,  G01C19/24 ,  G02B6/293

CPC classification number: G02B6/3596 ,  G01C19/24 ,  G02B6/29338

Abstract: Techniques are provided for implementing and using a travelling wave resonator, comprising planar optical waveguide including at least two stacked cores, to diminish Kerr effect in the travelling wave resonator. The travelling wave resonator may be used in a resonator optical gyroscope.

公开(公告)号：US11988774B2

公开(公告)日：2024-05-21

申请号：US17080102

申请日：2020-10-26

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Steven Tin ,  Chad Fertig

IPC: G01S7/481 ,  G01N21/47 ,  G02B6/12 ,  G02B6/42 ,  G02F1/225

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.

公开(公告)号：US20220229227A1

公开(公告)日：2022-07-21

申请号：US17531441

申请日：2021-11-19

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Chad Fertig ,  Steven Tin

IPC: G02B6/124 ,  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.

公开(公告)号：US20220057427A1

公开(公告)日：2022-02-24

申请号：US16996366

申请日：2020-08-18

Applicant: Honeywell International Inc.

Inventor： Matthew Puckett ,  Jianfeng Wu ,  Neil Krueger ,  Steven Tin

IPC: G01P15/093 ,  G01P15/097

Abstract: This disclosure is related to devices, systems, and techniques for determining an acceleration. For example, an accelerometer system includes a resonator and a light-emitting device configured to generate, based on an error signal, an optical signal. Additionally, the accelerometer includes a modulator configured to receive the optical signal, generate a modulated optical signal responsive to receiving the optical signal, and output the modulated optical signal to the resonator. A photoreceiver receives a passed optical signal from the resonator, where the passed optical signal indicates a resonance frequency of the resonator. Additionally, the photoreceiver receives a reflected optical signal from the resonator. The photoreceiver generates one or more electrical signals based on the passed optical signal and the reflected optical signal. Processing circuitry generates the error signal and determines the acceleration based on the one or more electrical signals.

公开(公告)号：US20210336405A1

公开(公告)日：2021-10-28

申请号：US16859471

申请日：2020-04-27

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Neil A. Krueger ,  Steven Tin ,  Jeffrey James Kriz

IPC: H01S3/08 ,  H01S3/13

Abstract: An optical phase modulator comprises a cascaded array of optical resonators, wherein each of the optical resonators has an input port and an output port. A plurality of waveguides are coupled between the optical resonators and are configured to provide cascaded optical communication between the optical resonators. Each of the waveguides is respectively coupled between the output port of one optical resonator and the input port of an adjacent optical resonator. A transmission electrode is positioned adjacent to the optical resonators, with the transmission electrode configured to apply a drive voltage across the optical resonators. The optical phase modulator is operative to co-propagate an input optical wave with the drive voltage, such that a resonator-to-resonator optical delay is matched with a resonator-to-resonator electrical delay.

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

IPC: G01R33/26 ,  G02B6/26

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.

公开(公告)号：US11119116B2

公开(公告)日：2021-09-14

申请号：US16371762

申请日：2019-04-01

Applicant: Honeywell International Inc.

Inventor： Chad Fertig ,  Arthur Savchenko ,  Joshua Dorr ,  Neil Krueger ,  Steven Tin

IPC: G01P15/097 ,  G01P15/08

Abstract: This disclosure is related to devices, systems, and techniques for determining, using an electro-opto-mechanical accelerometer system, a frequency value in order to determine an acceleration value. For example, an accelerometer system includes a light-emitting device configured to emit an optical signal and a circuit. The circuit is configured to modulate, using a modulating device, the optical signal to produce a modulated optical signal, receive, using a photoreceiver, the modulated optical signal, convert, using the photoreceiver, the modulated optical signal into an electrical signal, process the electrical signal to obtain a processed electrical signal, and transmit the processed electrical signal to the modulating device, where the modulating device is configured to modulate the optical signal based on the processed electrical signal. Additionally, the circuit is configured to determine, based on the processed electrical signal, a frequency value.