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    OPTICAL CIRCUIT ELEMENT
    1.
    发明申请
    OPTICAL CIRCUIT ELEMENT 审中-公开

    公开(公告)号：US20190302362A1

    公开(公告)日：2019-10-03

    申请号：US16373551

    申请日：2019-04-02

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Seo Young LEE ,  Young-Tak HAN

    IPC: G02B6/126 ,  G02B6/10 ,  G02B6/122

    Abstract: Provided is an optical circuit element, and more particularly, is an optical circuit element that splits one optical signal into two polarization signals, or couples two polarization signals into one optical signal. The optical circuit element includes a plurality of input couplers to which an optical signal is input, a plurality of output couplers from which an optical signal is output, a first path and a second path configured to connect the input couplers and the second couplers to each other, and at least one wave plate.

    OPTICAL TRANSMITTER MODULE
    3.
    发明申请
    OPTICAL TRANSMITTER MODULE 有权

    公开(公告)号：US20210234615A1

    公开(公告)日：2021-07-29

    申请号：US17156073

    申请日：2021-01-22

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Young-Tak HAN ,  Seok Jun YUN ,  Seoktae KIM ,  Sang Ho PARK ,  Yongsoon BAEK ,  Jang Uk SHIN ,  Seo Young LEE

    IPC: H04B10/50 ,  H01S3/00 ,  H01S3/23 ,  G02B6/12 ,  H04J14/02 ,  H04Q11/00

    Abstract: Disclosed is an optical transmitter module including a directly modulated laser transmitter based on a directly modulated laser (DML) and an arrayed waveguide grating (AWG) chip that is vertically polished. The directly modulated laser transmitter includes a directly modulated laser chip array including one or more directly modulated laser chips, an impedance matching circuit that allows each of the one or more directly modulated laser chips to operate at a critical speed of 100 Gbps per channel or higher, and a radio frequency-flexible printed circuit board (RF-FPCB) that transmits a radio frequency (RF) modulating signal to the directly modulated laser chip array. The arrayed waveguide grating chip includes an optical waveguides that transfer multi-channel optical signals and a wavelength multiplexer that multiplexes the multi-channel optical signals. The directly modulated laser transmitter and the arrayed waveguide grating chip are spaced apart from each other and are optically coupled in chip-to-chip.

    RECEIVER OPTICAL MODULE
    4.
    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。

    COHERENT OPTICAL RECEIVER AND FABRICATION METHOD THEREOF
    6.
    发明申请
    COHERENT OPTICAL RECEIVER AND FABRICATION METHOD THEREOF 有权

    公开(公告)号：US20210044359A1

    公开(公告)日：2021-02-11

    申请号：US16846948

    申请日：2020-04-13

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Seo Young LEE ,  Young-Tak HAN ,  Jong-Hoi KIM

    IPC: H04B10/61

    Abstract: Provided are a coherent optical receiver and a fabrication method thereof, the coherent optical receiver including a substrate, signal and local input waveguides extending in a first direction parallel to a top surface of the substrate and configured to receive an optical signal, a first optical circuit element including a first optical waveguide connected to the signal input waveguide and a trench provided in one side of the first optical waveguide in parallel to the first direction, a second optical circuit element including a second optical waveguide connected to the first optical waveguide, a slit crossing the second optical waveguide, and a wavelength plate inserted to the slit, and third optical circuit elements connected to the second optical circuit element, wherein the first to third optical circuit elements are monolithically integrated in the substrate.

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