中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

12 records (took 0.016 seconds)

    RECEIVER OPTICAL MODULE
    1.
    发明申请
    RECEIVER OPTICAL MODULE 有权
    接收光模块

    公开(公告)号：US20160336368A1

    公开(公告)日：2016-11-17

    申请号：US15133945

    申请日：2016-04-20

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Seo Young LEE ,  Young Tak HAN ,  Jong Hoi KIM ,  Joong Seon CHOE ,  Chun Ju YOUN ,  Hyun Do JUNG

    IPC: H01L27/146 ,  H04B10/60

    CPC classification number: H04B10/2504 ,  G02B6/00 ,  G02B6/4249 ,  G02B6/4279

    Abstract: There is provided a receiver optical module including a photodetector having a plurality of channels, a capacitor disposing block formed on an upper portion of the photodetector, a plurality of capacitors formed on the capacitor disposing block, and an electrical wiring configured to connect the plurality of capacitors to electrodes of a plurality of channels of the photodetector, wherein the plurality of capacitors are formed on the capacitor disposing block such that distance between the capacitors and the electrodes of the corresponding channels are the same. Distortion and loss of signal characteristics of high frequency can be reduced and quality of a signal can be enhanced.

    Abstract translation: 提供了一种接收器光学模块，包括具有多个通道的光电检测器，形成在光电检测器的上部的电容器设置块，形成在电容器设置块上的多个电容器，以及电连接器， 电容器到所述光电检测器的多个通道的电极，其中所述多个电容器形成在所述电容器设置块上，使得所述电容器和相应通道的电极之间的距离相同。 可以降低高频信号特性的失真和损失，提高信号质量。

    POLARIZATION DECOMPOSITION DEVICE
    5.
    发明申请
    POLARIZATION DECOMPOSITION DEVICE 审中-公开

    公开(公告)号：US20190353918A1

    公开(公告)日：2019-11-21

    申请号：US16415708

    申请日：2019-05-17

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Kap-Joong KIM ,  Chun Ju YOUN ,  Heasin KO ,  Byung-Seok CHOI ,  Joong-Seon CHOE

    IPC: G02B27/28 ,  H04K1/08

    Abstract: Provided is a polarization decomposition device. The polarization decomposition device includes a polarization beam splitter configured to split an optical signal into a first polarized light having a first polarization direction and a second polarized light having a second polarization direction different from the first polarized light, a phase shifter configured to delay a phase of the first polarized light, a polarization rotator configured to rotate the second polarized light so that the polarization direction of the second polarized light is changed, and an interference beam splitter configured to allow the first polarized light in which the phase is delayed and the second polarized light in which the polarization direction is rotated to interfere with each other and split them into a third polarized light and a fourth polarized light.

    OPTICAL ALIGNMENT DEVICE
    6.
    发明公开
    OPTICAL ALIGNMENT DEVICE 审中-公开

    公开(公告)号：US20230258885A1

    公开(公告)日：2023-08-17

    申请号：US18079973

    申请日：2022-12-13

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Joong-Seon CHOE ,  Duk Jun KIM ,  Chun Ju YOUN

    IPC: G02B6/42

    CPC classification number: G02B6/423 ,  G02B6/4202 ,  G02B6/4243

    Abstract: An optical alignment device according to an embodiment of the inventive concept includes an optical alignment plate having a first hole and at least one second hole, in which the first hole and the second hole pass through the optical alignment plate, and an optical detection element disposed on the optical alignment plate. Here, the optical detection element includes a substrate having a first surface and a second surface, which face each other, a lens disposed on the first surface, and an optical sensor disposed on the second surface, and the optical detection element vertically overlaps the first hole and the second hole. The lens is exposed to the outside by the first hole, and the second hole is connected with a vacuum suction unit to fix the optical detection element to the optical alignment plate.

    QUANTUM KEY DISTRIBUTION SYSTEM AND OPERATION METHOD THEREOF
    8.
    发明公开
    QUANTUM KEY DISTRIBUTION SYSTEM AND OPERATION METHOD THEREOF 审中-公开

    公开(公告)号：US20230283459A1

    公开(公告)日：2023-09-07

    申请号：US17937325

    申请日：2022-09-30

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Kyongchun LIM ,  Chun Ju YOUN ,  Joong-Seon CHOE ,  Minchul KIM ,  Byung-seok CHOI

    IPC: H04L9/08

    CPC classification number: H04L9/0852

    Abstract: A quantum key distribution system using an RFI (reference frame independent) QKD (quantum key distribution) protocol includes a quantum channel transmitter that generates a first quantum signal including quantum information and provides the first quantum signal to an external device through a quantum channel, a first public channel transceiver that generates an optical signal including first additional information related to a QKD operation, and transmits and receives the optical signal through a public channel, a second public channel transceiver that receives the optical signal through the public channel and generates a measurement result by measuring a circular polarization component of the optical signal, and a quantum channel receiver that receives the first quantum signal through the quantum channel, generates a second quantum signal by correcting a polarization distortion of the first quantum signal based on the measurement result, and demodulates the quantum information from the second quantum signal.

    QUANTUM KEY DISTRIBUTION SYSTEM AND OPERATION METHOD THEREOF
    9.
    发明申请
    QUANTUM KEY DISTRIBUTION SYSTEM AND OPERATION METHOD THEREOF 有权

    公开(公告)号：US20220141008A1

    公开(公告)日：2022-05-05

    申请号：US17488955

    申请日：2021-09-29

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Kyongchun LIM ,  Chun Ju YOUN ,  Byung-seok CHOI ,  Young-Ho KO ,  Kap-Joong KIM ,  Minchul KIM ,  Ju Hee BAEK ,  Joong-Seon CHOE

    IPC: H04L9/08

    Abstract: Disclosed is a quantum key distribution system using an RFI (reference frame independent) QKD (quantum key distribution) protocol, which includes a first signal processing circuit that generates transmission basis information and transmission bit information, a quantum channel transmitter that generates a single photon or coherent light, and modulates the single photon or the coherent light based on the transmission basis information and the transmission bit information to generate a quantum signal, a quantum channel receiver that receives the quantum signal through a quantum channel and detects reception bit information from the quantum signal based on reception basis information, and a second signal processing circuit that generates the reception basis information, transmits the reception basis information to the first signal processing circuit through a public channel, and receives the transmission basis information from the first signal processing circuit through the public channel.

Patent Agency Ranking