Mode converter, multimode waveguide transmission apparatus, and method

    公开(公告)号:US10353148B2

    公开(公告)日:2019-07-16

    申请号:US15587468

    申请日:2017-05-05

    Inventor: Fei Zhao Xin Tu

    Abstract: A mode converter provided in the present invention includes an input multimode waveguide, an output multimode waveguide, and a first conversion waveguide, where the input multimode waveguide is configured to receive a first signal which mode is a first mode; the first conversion waveguide has an input coupling waveguide with a first effective refractive index, and has an output coupling waveguide with a second effective refractive index; the first conversion waveguide is configured to perform, by using the input coupling waveguide, evanescent wave coupling on the first signal that is in the first mode and that is transmitted in the input multimode waveguide, and couple the first signal to the second mode of the output multimode waveguide by using the output coupling waveguide, so as to obtain the first signal in the second mode; and the output multimode waveguide is configured to output the first signal in the second mode.

    Mode multiplexer/demultiplexer and switching node

    公开(公告)号:US10222549B2

    公开(公告)日:2019-03-05

    申请号:US15495583

    申请日:2017-04-24

    Abstract: The present invention discloses a mode multiplexer/demultiplexer and a switching node. The mode multiplexer/demultiplexer includes a multi-mode optical waveguide, a first transmission optical waveguide, and a second transmission optical waveguide. The multi-mode optical waveguide includes a first mode channel and a second mode channel. The first transmission optical waveguide includes a first coupling region that includes a first fundamental-mode channel, and the first fundamental-mode channel performs optical mode coupling with the first mode channel in the multi-mode optical waveguide. The second transmission optical waveguide includes a second coupling region that includes a second fundamental-mode channel, and the second fundamental-mode channel performs optical mode coupling with the second mode channel in the multi-mode optical waveguide. An effective refractive index of a fundamental-mode optical signal in the first coupling region is different from an effective refractive index of the same fundamental-mode optical signal in the second coupling region.

    Projection Display Apparatus
    4.
    发明公开

    公开(公告)号:US20230176461A1

    公开(公告)日:2023-06-08

    申请号:US17922235

    申请日:2021-03-24

    CPC classification number: G03B21/16 G03B21/006 G02B27/10 G03B21/2066

    Abstract: The optical machine module includes a light emitting module and a modulation module. The light emitting module includes a light source configured to emit linearly polarized light. The modulation module includes a modulation component. The modulation component includes a light-combining prism and a liquid crystal on silicon (LCOS) modulator. The light-combining prism includes four rectangular prisms. The light-combining prism has four sides and four intersection planes formed by the four rectangular prisms. The LCOS modulator includes a first LCOS modulator, a second LCOS modulator, and a third LCOS modulator. The first LCOS modulator, the second LCOS modulator, and the third LCOS modulator are respectively disposed on light emitting sides of three different sides. At least two of the four intersection planes are configured to split light. At least two of the four intersection planes are configured to combine light.

    Optical Interconnector, Optoelectronic Chip System, and Optical Signal Sharing Method
    5.
    发明申请
    Optical Interconnector, Optoelectronic Chip System, and Optical Signal Sharing Method 有权
    光学互连器件,光电芯片系统和光信号共享方法

    公开(公告)号:US20170017039A1

    公开(公告)日:2017-01-19

    申请号:US15277931

    申请日:2016-09-27

    Abstract: An optical interconnector (915) includes: a first vertical coupled cavity (100), a first optical waveguide (102), and a second optical waveguide (103). The first vertical coupled cavity (100) includes N identical micro-resonant cavities that are equidistantly stacked, where a center of each micro-resonant cavity is located on a first straight line that is perpendicular to a plane on which the micro-resonant cavity is located, the first optical waveguide (102) and a first micro-resonant cavity (11) are in a same plane, the second optical waveguide (103) and a second micro-resonant cavity (13) are in a same plane, the first optical waveguide (102) is an input optical waveguide, the second optical waveguide (103) is a first output optical waveguide, and an optical signal having a first resonant wavelength in the first optical waveguide (102) enters the second optical waveguide (103) through the first vertical coupled cavity (100).

    Abstract translation: 光学互连器(915)包括:第一垂直耦合腔(100),第一光波导(102)和第二光波导(103)。 第一垂直耦合腔(100)包括N个相同的微谐振腔,其等距地堆叠,其中每个微谐振腔的中心位于垂直于微谐振腔的平面的第一直线上 位于第一光波导(102)和第一微谐振腔(11)处于同一平面中,第二光波导(103)和第二微谐振腔(13)处于同一平面,第一光波导 光波导(102)是输入光波导,第二光波导(103)是第一输出光波导,在第一光波导(102)中具有第一谐振波长的光信号进入第二光波导(103) 通过第一垂直耦合腔(100)。

    Micromirror Assembly and Laser Device
    6.
    发明公开

    公开(公告)号:US20240077716A1

    公开(公告)日:2024-03-07

    申请号:US18507537

    申请日:2023-11-13

    CPC classification number: G02B26/0833 G02B6/3518 G02B6/3588

    Abstract: A micromirror assembly comprises a first position-limiting part, a micromirror chip, and a second position-limiting part that are stacked. The micromirror chip includes a fastening frame, a movable part, and a first cantilever, where the movable part is connected to the fastening frame by the first cantilever. The first position-limiting part and the second position-limiting part are separately connected to the fastening frame, the first position-limiting part and the second position-limiting part have a hollow area, and the hollow areas are opposite to the movable part. The first position-limiting part and the second position-limiting part are configured to absorb shock from a collision with the micromirror chip, and a projection of a collision part of the first position-limiting part on the micromirror chip intersects with a central axis of the first cantilever.

    Virtual private network implementation method and client device

    公开(公告)号:US10375025B2

    公开(公告)日:2019-08-06

    申请号:US15426386

    申请日:2017-02-07

    Abstract: A virtual private network implementation method includes intercepting, by an NDIS intermediate driver, a packet sent by an application program to an intranet server, and determining, according to a PID corresponding to the packet, whether to allow a process corresponding to the packet to use an SSL VPN; when the process corresponding to the packet is allowed to use the SSL VPN, establishing, by the NDIS intermediate driver, a new packet, and submitting the new packet to an NDIS network interface card driver; and sending, by the NDIS network interface card driver, the new packet to the client, and sending, by the client, the new packet to the intranet server. Thereby, a virtual private network is implemented based on process control, and a client has a fast startup speed.

    Virtual Private Network Implementation Method and Client Device

    公开(公告)号:US20170149738A1

    公开(公告)日:2017-05-25

    申请号:US15426386

    申请日:2017-02-07

    Abstract: A virtual private network implementation method includes intercepting, by an NDIS intermediate driver, a packet sent by an application program to an intranet server, and determining, according to a PID corresponding to the packet, whether to allow a process corresponding to the packet to use an SSL VPN; when the process corresponding to the packet is allowed to use the SSL VPN, establishing, by the NDIS intermediate driver, a new packet, and submitting the new packet to an NDIS network interface card driver; and sending, by the NDIS network interface card driver, the new packet to the client, and sending, by the client, the new packet to the intranet server. Thereby, a virtual private network is implemented based on process control, and a client has a fast startup speed.

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