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    Reduced crosstalk photonic switch
    23.
    发明授权
    Reduced crosstalk photonic switch 有权

    公开(公告)号：US10244297B1

    公开(公告)日：2019-03-26

    申请号：US15920769

    申请日：2018-03-14

    Applicant: Juniper Networks, Inc.

    Inventor： Jonathan Edgar Roth

    IPC: H04J14/00 ,  H04Q11/00 ,  G02B6/35 ,  H04B10/548

    Abstract: Described are various configurations of reduced crosstalk optical switches. Various embodiments can reduce or entirely eliminate crosstalk using a coupler that has a power-splitting ratio that compensates for amplitude imbalance caused by phase modulator attenuation. Some embodiments implement a plurality of phase modulators and couplers as part of a dilated switch network to increase overall bandwidth and further reduce potential for crosstalk.

    OPTICAL COUPLER INCLUDING A FARADAY ROTATOR LAYER AND AT LEAST ONE GRATING COUPLER
    27.
    发明申请
    OPTICAL COUPLER INCLUDING A FARADAY ROTATOR LAYER AND AT LEAST ONE GRATING COUPLER 有权

    公开(公告)号：US20210373257A1

    公开(公告)日：2021-12-02

    申请号：US17400705

    申请日：2021-08-12

    Applicant: Juniper Networks, Inc.

    Inventor： Jonathan Edgar Roth ,  Jared Bauters ,  Gregory Alan Fish

    IPC: G02B6/42 ,  G02B6/27 ,  G02B6/34

    Abstract: An optical coupling device can couple incident light from a fiber into waveguides, but can reduce the coupling of return light from the waveguides into the fiber. A Faraday rotator layer can rotate by forty-five degrees, with a first handedness, respective planes of polarization of incident beams, and can rotate by forty-five degrees, with a second handedness opposite the first handedness, respective planes of polarization of return beams. A redirection layer can include at least one grating coupler that can redirect an incident beam of one polarization so that the redirected path extends within the redirection layer toward a first waveguide, and can redirect an incident beam of an opposite polarization so that the redirected path extends within the redirection layer toward a second waveguide. An optional birefringent layer can spatially separate incident beam having different polarizations, so that two single-polarization grating couplers can be used.

    INTEGRATED OPTOELECTRONIC DEVICE WITH HEATER
    28.
    发明申请
    INTEGRATED OPTOELECTRONIC DEVICE WITH HEATER 审中-公开

    公开(公告)号：US20200333641A1

    公开(公告)日：2020-10-22

    申请号：US16919802

    申请日：2020-07-02

    Applicant: Juniper Networks, Inc.

    Inventor： Jonathan Edgar Roth ,  Erik Johan Norberg

    IPC: G02F1/017 ,  G02F1/025

    Abstract: Disclosed are structures as well as methods of manufacture and operation of integrated optoelectronic devices that facilitate directly heating the diode or waveguide structures to regulate a temperature of the device while allowing electrical contacts to be placed close to the device to reduce the electrical resistance. Embodiments include, in particular, heterogeneous electro-absorption modulators that include a compound-semiconductor diode structure placed above a waveguide formed in the device layer of an SOI substrate.

    INTEGRATED OPTOELECTRONIC DEVICE WITH HEATER
    29.
    发明申请
    INTEGRATED OPTOELECTRONIC DEVICE WITH HEATER 审中-公开

    公开(公告)号：US20200209655A1

    公开(公告)日：2020-07-02

    申请号：US16235197

    申请日：2018-12-28

    Applicant: Juniper Networks, Inc.

    Inventor： Jonathan Edgar Roth ,  Erik Johan Norberg

    IPC: G02F1/017

    Abstract: Disclosed are structures as well as methods of manufacture and operation of integrated optoelectronic devices that facilitate directly heating the diode or waveguide structures to regulate a temperature of the device while allowing electrical contacts to be placed close to the device to reduce the electrical resistance. Embodiments include, in particular, heterogeneous electro-absorption modulators that include a compound-semiconductor diode structure placed above a waveguide formed in the device layer of an SOI substrate.

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