公开(公告)号：US20240369776A1

公开(公告)日：2024-11-07

申请号：US18777982

申请日：2024-07-19

Applicant: Honeywell International Inc.

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

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

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：US20240345185A1

公开(公告)日：2024-10-17

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: G01R33/032 ,  G02F1/39 ,  H01S3/091 ,  H01S3/108

CPC classification number: G01R33/032 ,  G02F1/395 ,  H01S3/0912 ,  H01S3/1083 ,  H01S3/1086

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.

公开(公告)号：US20240302168A1

公开(公告)日：2024-09-12

申请号：US18182217

申请日：2023-03-10

Applicant: Honeywell International Inc.

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

IPC: G01C19/72

CPC classification number: G01C19/726 ,  G01C19/727

Abstract: A photonics gyroscope comprises a laser and a common intensity modulation unit that outputs an intensity modulated beam, split into a CCW beam having a first power level and a CW beam having a second power level. A first phase modulator (PA) receives the CCW beam, and a second PA receives the CW beam. A variable optical attenuator (VOA) is coupled to the first or second PA. The CCW beam is coupled into a resonator and the CW beam is coupled into the resonator. A first detector receives the CCW beam and a second detector receives the CW beam from the resonator. A CCW control loop locks the CCW beam, and a CW control loop locks the CW beam, to resonance peaks. The VOA receives a feedback loop signal to aid in balancing power levels between CCW and CW beams to eliminate a rate signal at an intensity modulation frequency.

公开(公告)号：US20240255768A1

公开(公告)日：2024-08-01

申请号：US18162558

申请日：2023-01-31

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Chad Fertig ,  Chad Hoyt ,  Karl D. Nelson ,  Luke Horstman

IPC: G02B27/09

CPC classification number: G02B27/0961 ,  G02B27/0927

Abstract: An optical device comprises a substrate layer having an upper surface, and a waveguide layer over the upper surface of the substrate layer. The waveguide layer comprises an input waveguide defined by a first waveguide portion having a first refractive index; an input slab defined by the first waveguide portion, the input slab adjoined with the input waveguide; and a microlens array defined by a second waveguide portion having a second refractive index that is different from the first refractive index. The microlens array is in optical communication with the input waveguide through the input slab. The microlens array is configured to receive a diverging planar light beam from the input slab along a direction of propagation. The microlens array is configured to control a far-field emission of the light beam such that an emission profile of the light beam exhibits a substantially uniform intensity.

公开(公告)号：US20240192574A1

公开(公告)日：2024-06-13

申请号：US18584710

申请日：2024-02-22

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Chad Fertig ,  Matthew Robbins ,  Jad Salman

IPC: G02F1/35 ,  G02F1/377 ,  H01S3/00 ,  H01S3/109

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.

公开(公告)号：US20230296832A1

公开(公告)日：2023-09-21

申请号：US17697565

申请日：2022-03-17

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Chad Hoyt ,  Chad Fertig ,  Matthew Robbins

IPC: G02B6/12 ,  G02B3/00 ,  G02B27/30

CPC classification number: G02B6/12007 ,  G02B3/0087 ,  G02B27/30 ,  G02B2003/0093 ,  G02B2006/12102

Abstract: An optical device comprises a waveguide core layer that includes a planar lens structure having a first end and a second end, with the planar lens structure including a plurality of lens tapers extending from at least one of the first or seconds ends in a convex-shaped array. The waveguide core layer also includes a waveguide slab that adjoins with the planar lens structure, such that the waveguide slab is in optical communication with the plurality of lens tapers. The plurality of lens tapers are configured to adiabatically transition an index of refraction from a first index value, external to the planar lens structure, to a second index value, internal to the planar lens structure.

公开(公告)号：US20230238773A1

公开(公告)日：2023-07-27

申请号：US17581692

申请日：2022-01-21

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Jianfeng Wu ,  Karl D. Nelson ,  Chad Hoyt

IPC: H01S5/0683 ,  G02F1/01 ,  H01S5/00 ,  H01S5/40 ,  H03K5/1252

CPC classification number: H01S5/0683 ,  G02F1/0102 ,  H01S5/0085 ,  H01S5/4012 ,  H03K5/1252 ,  G02F2203/56 ,  H01S5/12

Abstract: Systems and methods for a tunable RF synthesizer based on offset optical frequency combs is provided herein. An exemplary system includes two lasers, a first laser generating a first laser output and a second laser generating a second laser output; and a coupler that receives the first and second laser outputs. Further, the system includes a resonator having first and second sections coupled to one another, the coupler coupling the first and second laser outputs into the resonator; a splitter that couples the first section to the second section, the splitter splitting a first proportion of the first laser output and a second proportion of the second laser output onto different paths within the resonator; and a controller that controls the splitter to change a size of the first proportion in relation to the first laser and the second proportion in relation to the second laser.

公开(公告)号：US11536908B2

公开(公告)日：2022-12-27

申请号：US17307757

申请日：2021-05-04

Applicant: Honeywell International Inc.

Inventor： Matthew Wade Puckett ,  Chad Fertig ,  Neil A. Krueger ,  Karl D. Nelson ,  Chad Hoyt

IPC: G02B6/34 ,  G02B5/18 ,  G02B6/124 ,  G02B6/12

Abstract: A multilayer waveguide coupler comprising a first grating and a second grating is provided. Each first copropagating waveguide of the first grating has a first periodically modulated width. Each second copropagating waveguide of the second grating has a second periodically modulated width. The second grating is positioned so that a phase offset is present between the first periodically modulated width of the first copropagating waveguides and the second periodically modulated width of the second copropagating waveguides. The grating spaced distance and phase offset are selected so that light diffracted out of the first copropagating waveguides and the second copropagating waveguides in the first direction interferes constructively to form the first light beam and light diffracted out of the first copropagating waveguides and the second copropagating waveguides in the second direction interferes destructively.

公开(公告)号：US11442148B2

公开(公告)日：2022-09-13

申请号：US16569581

申请日：2019-09-12

Applicant: Honeywell International Inc.

Inventor： Steven Tin ,  Chad Fertig ,  Matthew Wade Puckett ,  Neil A. Krueger ,  Jianfeng Wu

IPC: G01K11/3206 ,  G01D3/036 ,  G01S7/481 ,  G02B6/42 ,  G02B6/293 ,  G01S17/10

Abstract: A sensor system comprises a pulsed light source, and a passive sensor head chip in communication with the light source. The sensor head chip includes a first photonics substrate, a transmitting optical component on the first photonics substrate and configured to couple a pulse, transmitted through a first optical fiber from the light source, into a region of interest; and a receiving optical component on the first photonics substrate and configured to couple backscattered light, received from the region of interest, into a second optical fiber. A signal processing chip communicates with the sensor head chip and light source. The signal processing chip includes a second photonics substrate and comprises a passive optical filter array that receives the backscattered light from the second optical fiber. The filter array includes notch filters in communication with each other and operative for frequency selection; and optical detectors respectively coupled to the notch filters.

公开(公告)号：US20220276293A1

公开(公告)日：2022-09-01

申请号：US17350901

申请日：2021-06-17

Applicant: Honeywell International Inc.

Inventor： Robert Compton ,  Karl D. Nelson ,  Neal Eldrich Solmeyer ,  Matthew Wade Puckett

IPC: G01R29/08

Abstract: A sensor system comprises a laser source that emits a pump beam at a first wavelength and a probe beam at a second wavelength, and an optical means for receiving the pump and probe beams. The optical means is operative to generate a plurality of light beams, each having a different frequency, from the pump and probe beams. One or more cells receive the light beams from the optical means and allow passage of the light beams therethrough, with the cells containing alkali atoms. A dichroic filter is configured to receive the light beams from the cells. The dichroic filter separates pump beam light and probe beam light from the light beams. A detector array receives the probe beam light from the dichroic filter. The detector array includes a two-dimensional array of photosensors that map out transmission of respective light beams corresponding to the probe beam light through the cells.