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    OPTICAL PHASE DIVERSITY RECEIVER FOR COHERENT OPTICAL COMMUNICATION
    3.
    发明申请
    OPTICAL PHASE DIVERSITY RECEIVER FOR COHERENT OPTICAL COMMUNICATION 有权
    用于相干光通信的光相位分集接收机

    公开(公告)号：US20160377813A1

    公开(公告)日：2016-12-29

    申请号：US15170626

    申请日：2016-06-01

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Shin Mo AN ,  Oh Kee KWON

    IPC: G02B6/293 ,  G02B6/27

    CPC classification number: G02B6/2931 ,  G02B6/2706 ,  G02B6/2773 ,  G02B6/29307 ,  G02B6/29308 ,  G02B6/2938

    Abstract: An optical phase diversity receiver may include: a diffraction grating including grating surfaces; a first input waveguide to which a first optical signal is inputted; a second input waveguide to which a second optical signal is inputted; and a slab waveguide including an input terminal optically coupled with the first and second input waveguides, and an output terminal provided at a position at which optical signals reflected by the diffraction grating reach the slab waveguide. Every determined number of grating surfaces are chirped in an identical manner. The slab waveguide is configured to guide the first and the second optical signals to the diffraction grating and guide the optical signals reflected by the diffraction grating to the output terminal. The grating surfaces are configured such that each of the optical signals reflected by the diffraction grating is divided into the predetermined number by optical power distribution.

    Abstract translation: 光相位分集接收器可以包括：包括光栅表面的衍射光栅; 输入第一光信号的第一输入波导; 输入第二光信号的第二输入波导; 以及平板波导，包括与第一和第二输入波导光耦合的输入端，以及设置在由衍射光栅反射的光信号到达平板波导的位置的输出端。 每个确定数量的光栅表面以相同的方式被啁啾。 平板波导被配置为将第一和第二光信号引导到衍射光栅，并将由衍射光栅反射的光信号引导到输出端。 光栅表面被配置为使得由衍射光栅反射的每个光信号通过光功率分布被划分成预定数量。

    RIDGE WAVEGUIDE SEMICONDUCTOR LASER DIODE AND METHOD FOR MANUFACTURING THE SAME
    4.
    发明申请
    RIDGE WAVEGUIDE SEMICONDUCTOR LASER DIODE AND METHOD FOR MANUFACTURING THE SAME 审中-公开
    RIDGE波导半导体激光二极管及其制造方法

    公开(公告)号：US20140328363A1

    公开(公告)日：2014-11-06

    申请号：US14147923

    申请日：2014-01-06

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Oh Kee KWON ,  Chul-Wook LEE ,  Yongsoon BAEK

    IPC: H01S5/026 ,  H01S5/22

    CPC classification number: H01S5/22 ,  H01S5/2086 ,  H01S5/209 ,  H01S5/2202 ,  H01S5/3213 ,  H01S2301/166 ,  H01S2301/176

    Abstract: Provided is a method of manufacturing a ridge waveguide type semiconductor laser diode, the method including sequentially forming, on a substrate, a lower clad layer, an active layer, a first upper clad layer, and a second upper clad layer; forming an insulating mask on the second upper clad layer; wet-etching the second upper clad layer by using the insulating mask to form channels passing through the second upper clad layer and a ridge between the channels; and performing dry-etching by using the insulating mask to form trenches that are extended from the channels and pass through the first upper clad layer.

    Abstract translation: 提供一种制造脊波导型半导体激光二极管的方法，该方法包括在基底上顺序地形成下包层，有源层，第一上覆层和第二上覆层; 在所述第二上包覆层上形成绝缘掩模; 通过使用绝缘掩模对第二上覆层进行湿式蚀刻，以形成通过第二上覆层的沟道和通道之间的脊; 并通过使用绝缘掩模进行干蚀刻以形成从沟道延伸并穿过第一上包层的沟槽。

    OPTICAL DEVICE AND DRIVING METHOD THEREOF
    5.
    发明申请
    OPTICAL DEVICE AND DRIVING METHOD THEREOF 有权

    公开(公告)号：US20210149226A1

    公开(公告)日：2021-05-20

    申请号：US17159947

    申请日：2021-01-27

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Oh Kee KWON ,  Kisoo KIM ,  Su Hwan OH ,  Chul-Wook LEE

    IPC: G02F1/01

    Abstract: An optical device according to the embodiment of the inventive concept includes a waveguide path including a light generation region, a wavelength variable region, and a light modulation region, a first light waveguide layer provided in the light generation region to generate light, a second light waveguide layer provided in the wavelength variable region and connected to the first light waveguide layer, a ring-shaped third light waveguide layer provided in the light modulation region and connected to the second light waveguide layer, and first and second light modulation electrodes spaced apart from each other with the light modulation region therebetween. Here, the first light modulation electrode, the third light waveguide layer, and the second light modulation electrode vertically overlap each other.

    WAVELENGTH SWEPT SOURCE APPARATUS AND OPERATING METHOD THEREOF
    8.
    发明申请
    WAVELENGTH SWEPT SOURCE APPARATUS AND OPERATING METHOD THEREOF 审中-公开
    波长切换源装置及其操作方法

    公开(公告)号：US20140376077A1

    公开(公告)日：2014-12-25

    申请号：US14104454

    申请日：2013-12-12

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Oh Kee KWON ,  Kwang Ryong OH ,  minhyup SONG ,  Chul-Wook LEE ,  Jang Uk SHIN ,  Young-Tak HAN

    IPC: G02F1/365 ,  G02F1/383 ,  G02F1/377

    CPC classification number: G02F1/3532 ,  G02F1/365 ,  G02F1/383 ,  G02F2001/354 ,  G02F2203/56

    Abstract: Provided are a wavelength swept source apparatus and a method for operating thereof. According to the provided apparatus and method, single mode light is generated, a basic optical comb including a plurality of light rays having identical frequency differences with adjacent light rays is generated by modulating the generated single mode light, and a plurality of optical combs, that includes same number of light rays as the plurality of light rays, has a different frequency band from that of the basic optical comb, and is distributed in a wider frequency band than that in which the basic optical comb is distributed, is generated by modulating the plurality of light rays. The plurality of light rays and light rays included in the plurality of optical combs are sequentially emitted according to frequencies of the plurality of light rays and the light rays included in the plurality of optical combs.

    Abstract translation: 提供了一种波长扫描源装置及其操作方法。 根据所提供的装置和方法，产生单模光，通过调制所产生的单模光和多个光梳来产生包括具有与相邻光线相同的频率差的多个光线的基本光梳，以及多个光梳 包括与多个光线相同数量的光线，具有与基本光梳相同的频带，并且分布在比分配基本光梳的更宽的频带中，是通过调制 多个光线。 包含在多个光梳中的多个光线和光线依照多个光线的频率和多个光梳中包含的光线依次发射。

    DISTRIBUTED FEEDBACK LASER DIODE AND MANUFACTURING METHOD THEREOF
    9.
    发明申请
    DISTRIBUTED FEEDBACK LASER DIODE AND MANUFACTURING METHOD THEREOF 审中-公开
    分布式反馈激光二极管及其制造方法

    公开(公告)号：US20140334512A1

    公开(公告)日：2014-11-13

    申请号：US14197910

    申请日：2014-03-05

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Oh Kee KWON ,  Young-Tak HAN ,  Chul-Wook LEE ,  Young Ahn LEEM

    IPC: H01S5/12 ,  H01S5/32

    CPC classification number: H01S5/12 ,  H01S5/0425 ,  H01S5/0427 ,  H01S5/209 ,  H01S5/2231 ,  H01S2301/176

    Abstract: Provided is a distributed feedback-laser diode (DFB-LD) and manufacturing method thereof. The DFB-LD includes a substrate; a lower clad layer having a grating on the substrate; an active waveguide extended in a first direction on the lower clad layer; an upper clad layer on the active waveguide; a signal pad on the upper clad layer; and at least one ground pad spaced apart from the active waveguide, the upper clad layer, and the signal pad in a second direction crossing the first direction, the at least one ground pad being coupled to the lower clad layer.

    Abstract translation: 提供了分布式反馈激光二极管（DFB-LD）及其制造方法。 DFB-LD包括基板; 在所述基板上具有光栅的下包层; 在下包层上沿第一方向延伸的有源波导; 有源波导上的上覆层; 上覆盖层上的信号焊盘; 以及与所述有源波导，所述上覆层和所述信号焊盘在与所述第一方向交叉的第二方向上间隔开的至少一个接地焊盘，所述至少一个接地焊盘联接到所述下包层。

    LASER DIODE AND MANUFACTURING METHOD OF THE SAME
    10.
    发明申请
    LASER DIODE AND MANUFACTURING METHOD OF THE SAME 有权

    公开(公告)号：US20220255291A1

    公开(公告)日：2022-08-11

    申请号：US17561212

    申请日：2021-12-23

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Su Hwan OH ,  Oh Kee KWON ,  Chul-Wook LEE ,  Kisoo KIM

    IPC: H01S5/026 ,  H01S5/125

    Abstract: Provided is a laser diode and a method for manufacturing the same. The diode includes a substrate including a DBR region having a channel hole, an active region, and a phase shift region, an optical waveguide provided on the substrate and extending from the active region to the DBR region, a lower insulation layer disposed on the optical waveguide, upper electrodes disposed on the lower insulation layer, and a heat blocking layer disposed in the channel hole of the DBR region and thermally separating the optical waveguide from the substrate.

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