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    LASER DEVICE
    11.
    发明申请
    LASER DEVICE 有权

    公开(公告)号：US20210288463A1

    公开(公告)日：2021-09-16

    申请号：US17182976

    申请日：2021-02-23

    Applicant: Electronics and Telecommunications Research Institute

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

    IPC: H01S5/026 ,  H01S5/068 ,  H01S5/042

    Abstract: Provided is a laser device according to embodiments of the inventive concept comprising a substrate including a gain region, a phase control region, and a tuning region arranged along a first direction, the substrate having an air gap which extends from the phase control region to the tuning region, an upper clad layer on the substrate, a waveguide structure extending in the first direction between the upper clad layer and the substrate, a first upper electrode disposed on the upper surface of the upper clad layer of the tuning region, and a lower electrode disposed on a lower surface of the substrate and extending from the gain region to the tuning region, wherein the air gap may have a larger width than the waveguide in a second direction crossing the first direction.

    DISTRIBUTED BRAGG REFLECTOR RIDGE LASER DIODE AND FABRICATING METHOD THEREOF
    14.
    发明申请
    DISTRIBUTED BRAGG REFLECTOR RIDGE LASER DIODE AND FABRICATING METHOD THEREOF 审中-公开
    分布式BRAGG反射器RIDGE激光二极管及其制造方法

    公开(公告)号：US20150349491A1

    公开(公告)日：2015-12-03

    申请号：US14601780

    申请日：2015-01-21

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

    IPC: H01S5/125 ,  H01S5/028 ,  H01S5/20 ,  H01S5/22 ,  H01S5/042

    CPC classification number: H01S5/125 ,  H01S5/0425 ,  H01S5/06256 ,  H01S5/162 ,  H01S5/22

    Abstract: Provided herein is a distributed bragg reflector ridge laser diode that is capable of easily embodying a diffraction grating and that minimizes an optical absorption effect on a DBR area, and a fabricating method thereof, the distributed bragg reflector ridge laser diode including a lower clad layer formed on top of a substrate; an active core zone formed on top of the lower clad layer; a plurality of ridge wave guides formed on top of the active core zone such that they are spaced from one another and extend in an axial direction; and a diffraction grating formed on top of the active core zone and between the plurality of ridge wave guides.

    Abstract translation: 本发明提供一种能够容易地体现衍射光栅并且最小化对DBR区域的光吸收效果的分布式布拉格反射器脊激光二极管及其制造方法，所述分布式布拉格反射器脊激光二极管包括形成的下包层 在基材的顶部; 形成在下包层顶部的活性芯区; 多个脊形波导形成在活性芯区的顶部，使得它们彼此间隔开并沿轴向方向延伸; 以及形成在有源芯区域的顶部和多个脊波导之间的衍射光栅。

    APPARATUS FOR GENERATING MULTI-CHANNEL ARRAY LIGHT SOURCE BASED ON WAVELENGTH DIVISION MULTIPLEXING
    16.
    发明申请
    APPARATUS FOR GENERATING MULTI-CHANNEL ARRAY LIGHT SOURCE BASED ON WAVELENGTH DIVISION MULTIPLEXING 审中-公开
    基于波长分割多路径生成多通道阵列光源的设备

    公开(公告)号：US20170052316A1

    公开(公告)日：2017-02-23

    申请号：US15150402

    申请日：2016-05-09

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Oh Kee KWON

    IPC: G02B6/12 ,  G02B6/293 ,  H04J14/02

    CPC classification number: G02B6/12009 ,  G02B6/4215 ,  G02B2006/12142 ,  H04B10/501 ,  H04J14/02

    Abstract: There is provided an apparatus for generating a multi-channel array light source based on wavelength division multiplexing (WDM). More specifically, the apparatus has a structure in which an optical multiplexer and distributed feedback laser diode (DFB-LD) array modules are coupled. The optical multiplexer is configured with a plurality of input port columns spatially spaced apart from each other, so that high-speed electrical signal lines, matching resistors, and DFB-LDs are integrated with each input port column. Accordingly, although a conventional apparatus is used as it is, the number of channels can be increased by two or three times without any large modification of the size of an optical device, and thus it is possible to achieve low-price, large-capacity communication. Based on this, it is possible to implement a low-priced 400-Gbps optical transceiver.

    Abstract translation: 提供了一种基于波分复用（WDM）生成多通道阵列光源的装置。 更具体地说，该装置具有耦合光复用器和分布反馈激光二极管（DFB-LD）阵列模块的结构。 光复用器配置有在空间上彼此间隔开的多个输入端口列，使得高速电信号线，匹配电阻和DFB-LD与每个输入端口列集成。 因此，虽然使用了传统的装置，但是通道的数量可以增加两到三次，而不会对光学装置的尺寸进行任何大的修改，因此可以实现低价格，大容量 通讯。 基于此，可以实现低价格的400-Gbps光收发器。

    METHOD OF OPERATING WAVELENGTH SWEPT SOURCE APPARATUS
    17.
    发明申请
    METHOD OF OPERATING WAVELENGTH SWEPT SOURCE APPARATUS 有权
    操作波长切换源装置的方法

    公开(公告)号：US20160077404A1

    公开(公告)日：2016-03-17

    申请号：US14951311

    申请日：2015-11-24

    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: G02F1/35

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

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

    Abstract translation: 操作波长扫描源装置的方法包括：生成单模光，并通过调制所生成的单模光，产生包括具有与相邻光线相同频率差的光的基本光梳。 该方法还包括生成包括与具有与基本光梳的频带不同的频带的光梳的光线相同数量的光束的其他光梳，并且分布在比 通过调制基本光梳的光线，分配基本光梳。 基本光梳的光线和包含在其他光梳中的光线根据基本光梳的光线和包含在其他光梳中的光线的频率依次发射。

    WAVELENGTH TUNABLE LIGHT SOURCE
    19.
    发明申请
    WAVELENGTH TUNABLE LIGHT SOURCE 审中-公开
    波长可调光源

    公开(公告)号：US20140218782A1

    公开(公告)日：2014-08-07

    申请号：US14105937

    申请日：2013-12-13

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Oh Kee KWON ,  Kwang Ryong OH ,  Young-Tak HAN

    IPC: G02F1/25 ,  G02F1/01

    CPC classification number: G02F1/25 ,  G01J3/10

    Abstract: Provided is a wavelength tunable light source including a super luminescent diode (SLD) generating lights in a predetermined wavelength band, a voltage generating unit generating first and second voltages, a first filter receiving the first voltage from the voltage generating unit, receiving the lights from the SLD, and transmitting, as second lights, lights corresponding to wavelengths separated by a free spectral range (FSR) from each other among the received lights, a second filter receiving the second voltage from the voltage generating unit, receiving the second lights from the first filter, and transmitting, as a third light, a light corresponding to one wavelength among the separated wavelengths among the received second light, and a reflective mirror disposed at an output end of the second filter and reflects the third light transmitted from the second filter.

    Abstract translation: 提供了一种波长可调光源，其包括产生预定波长带的光的超发光二极管（SLD），产生第一和第二电压的电压产生单元，从电压产生单元接收第一电压的第一滤波器， SLD，并且作为第二灯发射对应于在所接收的光之间彼此分开的自由光谱范围（FSR）的波长的光，从所述电压产生单元接收所述第二电压的第二滤波器， 第一滤光器，并且将所接收的第二光中分离的波长中的一个波长的光对应于第三光，以及设置在第二滤光器的输出端的反射镜，并将从第二滤光片透射的第三光 。

    FREQUENCY SWEPT SOURCE APPARATUS
    20.
    发明申请
    FREQUENCY SWEPT SOURCE APPARATUS 有权

    公开(公告)号：US20220173812A1

    公开(公告)日：2022-06-02

    申请号：US17539042

    申请日：2021-11-30

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Oh Kee KWON

    IPC: H04B10/50 ,  H04B10/079 ,  H04L7/00

    Abstract: Disclosed is a frequency swept source apparatus including a mode locking laser that outputs an input optical signal having first to n-th frequency components, a transmission delay controller that generates first to m-th sub-optical signals, each of which includes at least one component of the first to n-th frequency components, and outputs a delay optical signal obtained by sequentially delaying the first to m-th sub-optical signals. The transmission delay controller includes a demultiplexer that outputs the first to m-th sub-optical signals to first to m-th channels based on the input optical signal, respectively, a path delay unit that adjusts lengths of optical paths of the first to m-th channels so as to be different from one another, a refractive index controller that adjusts a refractive index of each of the first to m-th channels, and a multiplexer that combines the first to m-th sub-optical signals.

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