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    OPTICAL TRANSCEIVER AND METHOD OF SETTING WAVELENGTH OF OPTICAL TRANSCEIVER
    1.
    发明申请
    OPTICAL TRANSCEIVER AND METHOD OF SETTING WAVELENGTH OF OPTICAL TRANSCEIVER 有权

    公开(公告)号：US20210273406A1

    公开(公告)日：2021-09-02

    申请号：US16907682

    申请日：2020-06-22

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Jie Hyun Lee ,  Sae-Kyoung Kang ,  Joon Ki Lee ,  Sun Hyok Chang ,  Joon Young Huh

    IPC: H01S5/06 ,  H01S5/40 ,  H01S5/0687 ,  H04B10/40 ,  H04B10/50

    Abstract: An optical transceiver and a method of setting a wavelength of the optical transceiver. The optical transceiver may include a thermoelectric cooler (TEC) configured to maintain a constant operating temperature of a transmitter optical sub-assembly (TOSA) of the optical transceiver based on an installation environment of the optical transceiver, a plurality of laser diodes arranged on the top of the TEC and configured to output optical signals having different wavelengths, an optical multiplexer configured to multiplex the optical signals having different wavelengths, output through the plurality of laser diodes, and a wavelength controller configured to control the wavelengths of the optical signals output through the plurality of laser diodes such that optical outputs of the optical signals having different wavelengths, detected through the optical multiplexer, are maximized, wherein the wavelength controller may be individually arranged in one region of each of the plurality of laser diodes.

    Optical receiver with optical demultiplexer
    2.
    发明授权
    Optical receiver with optical demultiplexer 有权

    公开(公告)号：US10447405B2

    公开(公告)日：2019-10-15

    申请号：US16023145

    申请日：2018-06-29

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sae-Kyoung Kang ,  Joon Young Huh ,  Joon Ki Lee ,  Jie Hyun Lee

    IPC: H04B10/69 ,  H04J14/02 ,  H04B10/67

    Abstract: An optical receiver includes: an optical demultiplexer to demultiplex an optical signal in which a plurality of wavelengths is multiplexed and divide the optical signal into optical signals corresponding to the plurality of wavelengths, respectively; a reflector to change a progress direction of the divided optical signals; an optical coupling lens including, in an array form, light transmission lenses through which the divided optical signals are transmitted, respectively; a plurality of photodetectors to mount on a photodiode (PD) substrate provided on the optical coupling lens, receive the divided optical signals that are transmitted through the light transmission lenses of the optical coupling lens, respectively, and convert the received optical signals to electrical signals; and a plurality of trans impedance amplifiers provided at desired intervals to electrically connect to the plurality of photodetectors through wire bonding and amplify the received plurality of electrical signals to be a desired magnitude.

    Optical fiber coupler
    3.
    发明授权
    Optical fiber coupler 有权

    公开(公告)号：US12092873B2

    公开(公告)日：2024-09-17

    申请号：US17587194

    申请日：2022-01-28

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sae-Kyoung Kang ,  Joon Young Huh ,  Joon Ki Lee

    IPC: G02B6/30

    CPC classification number: G02B6/30

    Abstract: An optical fiber coupler includes a plurality of optical fibers parallel to each other in a first direction, an optical fiber array block (FAB) configured to maintain a constant center-to-center distance between the plurality of optical fibers, and an optical waveguide block including a plurality of optical waveguides coupled to the plurality of optical fibers, respectively, and configured to transfer optical signals transmitted through the plurality of optical fibers connected to the optical FAB in a second direction in which a photonics chip is placed and which is different from the first direction.

    Optical module
    6.
    发明授权
    Optical module 有权

    公开(公告)号：US11493688B2

    公开(公告)日：2022-11-08

    申请号：US16891259

    申请日：2020-06-03

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sae-Kyoung Kang ,  Jongtae Song ,  Joon Young Huh

    IPC: G02B6/12 ,  G02B6/293 ,  H04B10/40 ,  G02B6/287 ,  H04B10/27 ,  H04B10/60 ,  H04B10/25

    Abstract: An optical module includes an interface electrically connected to an external device to receive a data signal to be transmitted, a signal processor configured to perform serialization and signal modulation on the received data signal, an optical transceiver configured to generate an optical transmission signal by receiving a direct current (DC) light source, in which a plurality of light sources having different wavelengths are multiplexed, from an optical power supply and performing optical modulation thereon through the serialized and modulated data signal, and an optical fiber connector configured to output the generated optical transmission signal to the external device and receive an optical reception signal from the external device.

    Optical transmitting module
    9.
    发明授权
    Optical transmitting module 有权

    公开(公告)号：US10516487B1

    公开(公告)日：2019-12-24

    申请号：US16207557

    申请日：2018-12-03

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sae-Kyoung Kang ,  Joon Young Huh ,  Joon Ki Lee

    IPC: H04B10/516 ,  G02B6/42

    Abstract: An optical transmitting module includes: light sources configured to output optical signals, an optical multiplexer configured to multiplex the optical signals output from the light sources, a collimating lens configured to convert an optical signal output from the optical multiplexer to a form of parallel beam, a package inside which the light sources, the optical multiplexer, and the collimating lens are provided, and an optical isolator disposed on one inner surface of the package, in which the optical signals output from the light sources are multiplexed into a single optical signal through the optical multiplexer disposed inside the package, and the single optical signal passes through the collimating lens and is then optically coupled to an optical fiber stub in a receptacle through a focusing lens disposed outside the package to be output externally.

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