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    WAVELENGTH COMBINER PHOTONIC INTEGRATED CIRCUIT WITH GRATING COUPLING OF LASERS
    3.
    发明申请
    WAVELENGTH COMBINER PHOTONIC INTEGRATED CIRCUIT WITH GRATING COUPLING OF LASERS 审中-公开

    公开(公告)号：US20190179151A1

    公开(公告)日：2019-06-13

    申请号：US16216925

    申请日：2018-12-11

    Applicant: North Inc.

    Inventor： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Douglas R. Dykaar

    IPC: G02B27/01 ,  H01S5/022 ,  G02B6/12 ,  G02B27/42 ,  H01S5/40 ,  G02B6/124

    Abstract: Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Photonic integrated circuits having grating couplers thereon may be used to wavelength multiplex beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. Such optical engines may have various advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

    FREE SPACE MULTIPLE LASER DIODE MODULES
    4.
    发明申请
    FREE SPACE MULTIPLE LASER DIODE MODULES 审中-公开

    公开(公告)号：US20190121136A1

    公开(公告)日：2019-04-25

    申请号：US16168699

    申请日：2018-10-23

    Applicant: NORTH INC.

    Inventor： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Douglas Raymond Dykaar

    IPC: G02B27/01 ,  H04N9/31

    Abstract: Systems, devices, and methods for optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically sealed, encapsulated package. Such optical engines may have various advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

    WAVELENGTH STABILIZATION OF LASER DIODES BY TEMPERATURE CONTROL
    5.
    发明申请
    WAVELENGTH STABILIZATION OF LASER DIODES BY TEMPERATURE CONTROL 审中-公开

    公开(公告)号：US20190229495A1

    公开(公告)日：2019-07-25

    申请号：US16254912

    申请日：2019-01-23

    Applicant: North Inc.

    Inventor： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Douglas R. Dykaar ,  John Domm

    IPC: H01S5/068 ,  G02B27/01 ,  H01S5/022 ,  H01S5/00 ,  H01S5/40 ,  H01S5/024 ,  G02B26/10

    Abstract: Systems, devices, and methods for providing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. The optical engines of the present disclosure may integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Wavelength stabilization for the laser diodes is achieved by controlling the temperature of the lasers to always be in a particular range of operating specifications which provides wavelength stabilization that meets particular performance criteria. The lasers themselves may be used for temperature control by selectively switching them on to maintain their temperature within a specified range. Alternatively, compact resistive heaters may be positioned proximate the laser diodes to control the temperature of the laser diodes during operation. WHUDs that employ such optical engines and laser projectors are also described. Additionally, optical systems for collimating and shifting light beams are described.

    DIRECTLY WRITTEN WAVEGUIDE FOR COUPLING OF LASER TO PHOTONIC INTEGRATED CIRCUIT
    6.
    发明申请
    DIRECTLY WRITTEN WAVEGUIDE FOR COUPLING OF LASER TO PHOTONIC INTEGRATED CIRCUIT 审中-公开

    公开(公告)号：US20190219825A1

    公开(公告)日：2019-07-18

    申请号：US16231284

    申请日：2018-12-21

    Applicant: NORTH INC.

    Inventor： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Martin Joseph Kiik ,  Syed Moez Haque ,  Douglas Raymond Dykaar

    IPC: G02B27/01 ,  G02B6/42 ,  H01S5/022 ,  H01S5/40 ,  H01S5/026

    Abstract: Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Photonic integrated circuits having grating or edge couplers thereon may be used to wavelength multiplex beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. A waveguide medium having one or more directly written waveguides may couple light from laser diodes to a photonic integrated circuit, and may optionally hermetically or partially hermetically seal the laser diodes, eliminating the need for a separate seal. Such optical engines may have advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

    WAVELENGTH COMBINER PHOTONIC INTEGRATED CIRCUIT WITH EDGE COUPLING OF LASERS
    10.
    发明申请
    WAVELENGTH COMBINER PHOTONIC INTEGRATED CIRCUIT WITH EDGE COUPLING OF LASERS 审中-公开

    公开(公告)号：US20200026080A1

    公开(公告)日：2020-01-23

    申请号：US16203278

    申请日：2018-11-28

    Applicant: North Inc.

    Inventor： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Douglas R. Dykaar

    IPC: G02B27/01 ,  H01S5/40 ,  H01S5/022 ,  G02B26/10 ,  G02B26/08

    Abstract: Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Photonic integrated circuits may be used to wavelength multiplex beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. Such optical engines may have various advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

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