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    Multilevel coupling for phase front engineering
    1.
    发明授权
    Multilevel coupling for phase front engineering 有权

    公开(公告)号：US12130472B2

    公开(公告)日：2024-10-29

    申请号：US18067985

    申请日：2022-12-19

    Applicant: IMEC VZW

    Inventor： Bruno Figeys ,  Jon Kjellman ,  Roelof Jansen

    IPC: G02B6/12 ,  G02B6/13

    CPC classification number: G02B6/12014 ,  G02B6/12016 ,  G02B6/13

    Abstract: Example embodiments relate to multilevel coupling for phase front engineering. An example integrated optical structure for phase front engineering of optical beams includes a substrate. The integrated optical structure also includes a plurality of optical layers formed on the substrate. Each of the optical layers includes an optical phased array that includes a plurality of optical waveguides. Each of the optical layers also includes a coupling section for each of the optical waveguides. Each coupling section is configured to control the phase of an optical beam coupling out of the optical waveguide. Additionally, the integrated optical structure includes a slab waveguide formed on the substrate and between two of the optical layers. The slab waveguide is in optical communication with the coupling sections of the two optical layers. The slab waveguide includes a slab waveguide outcoupling structure.

    Optical system with phase shifting elements
    2.
    发明授权
    Optical system with phase shifting elements 有权

    公开(公告)号：US11852865B2

    公开(公告)日：2023-12-26

    申请号：US17386362

    申请日：2021-07-27

    Applicant: Apple Inc.

    Inventor： Yongming Tu ,  Alfredo Bismuto

    IPC: G02B6/12

    CPC classification number: G02B6/12014 ,  G02B6/12016

    Abstract: Configurations for an optical system with phase shifting elements are disclosed. The optical system may include a first waveguide that provides light to a second waveguide, which may be a slab waveguide. A phase shifting element may be disposed on the slab waveguide and may be heated to induce a temperature change in the slab waveguide. By increasing the temperature of the propagation region of the slab waveguide, the index of refraction of the propagation region of the slab waveguide may shift, thus causing the index of refraction of light propagating through the propagation region to shift, thus shifting the phase of the light. This may result in an optical component capable of phase shifting light for reducing coherent noise while being energy efficient and maintaining a small form factor.

    Arrayed waveguide gratings with stabilized performance under varying parameters
    3.
    发明授权
    Arrayed waveguide gratings with stabilized performance under varying parameters 有权

    公开(公告)号：US11815716B2

    公开(公告)日：2023-11-14

    申请号：US17368482

    申请日：2021-07-06

    Applicant: MACOM Technology Solutions Holdings, Inc.

    Inventor： Sean P. Anderson

    IPC: G02B6/12

    CPC classification number: G02B6/12011 ,  G02B6/12014 ,  G02B6/12019 ,  G02B6/12026 ,  G02B2006/12097 ,  G02B2006/12147 ,  G02B2006/12164

    Abstract: An arrayed waveguide grating device includes an input coupler configured to receive a light signal and split the light signal into a plurality of output light signals. The device also includes a plurality of waveguides optically connected to the input coupler, each waveguide having a plurality of waveguide portions having respective sensitivities to variance in one or more parameters associated with operating of the optical arrayed grating device. Lengths of the respective portions are determined such that each waveguide applies a respective phase shift to the output light signal that propagates through the waveguide and the plurality of waveguides have at least substantially same change in phase shift with respective changes in the one or more parameters associated with operation of the device. An output coupler is optically connected to the plurality of waveguides to map respective light signals output from the plurality of waveguides to respective focal positions.

    Multilevel Coupling for Phase Front Engineering
    5.
    发明公开
    Multilevel Coupling for Phase Front Engineering 审中-公开

    公开(公告)号：US20230194781A1

    公开(公告)日：2023-06-22

    申请号：US18067985

    申请日：2022-12-19

    Applicant: IMEC VZW

    Inventor： Bruno Figeys ,  Jon Kjellman ,  Roelof Jansen

    IPC: G02B6/12 ,  G02B6/13

    CPC classification number: G02B6/12014 ,  G02B6/12016 ,  G02B6/13

    Abstract: Example embodiments relate to multilevel coupling for phase front engineering. An example integrated optical structure for phase front engineering of optical beams includes a substrate. The integrated optical structure also includes a plurality of optical layers formed on the substrate. Each of the optical layers includes an optical phased array that includes a plurality of optical waveguides. Each of the optical layers also includes a coupling section for each of the optical waveguides. Each coupling section is configured to control the phase of an optical beam coupling out of the optical waveguide. Additionally, the integrated optical structure includes a slab waveguide formed on the substrate and between two of the optical layers. The slab waveguide is in optical communication with the coupling sections of the two optical layers. The slab waveguide includes a slab waveguide outcoupling structure.

    DUAL POLARIZATION ARRAYED WAVEGUIDE GRATING
    6.
    发明申请
    DUAL POLARIZATION ARRAYED WAVEGUIDE GRATING 审中-公开

    公开(公告)号：US20180052282A1

    公开(公告)日：2018-02-22

    申请号：US15240047

    申请日：2016-08-18

    Applicant: Lumentum Operations LLC

    Inventor： Barthelemy FONDEUR ,  Shibnath PATHAK

    IPC: G02B6/12 ,  G02B6/126 ,  G02B6/27 ,  G02B6/293

    CPC classification number: G02B6/12014 ,  G02B6/126 ,  G02B6/2726 ,  G02B6/29329 ,  G02B6/2938

    Abstract: A 1×N demultiplexer may include an input slab to distribute an input beam, including one or more wavelengths of light, among waveguides of a waveguide array. The wavelengths of light may comprise TE polarized light and TM polarized light. The 1×N demultiplexer may include the waveguide array to propagate a plurality of beams via the waveguides. The 1×N demultiplexer may include an output slab to cause N TE polarized beams and N TM polarized beams to be formed based on the plurality of beams. The 1×N demultiplexer may include a set of N TE output ports and a set of N TM output ports coupled to the output slab. A TE output port may receive a TE polarized beam of the N TE polarized beams. A TM output port may receive a TM polarized beam of the N TM polarized beams.

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