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    Optical access network of wavelength division method and passive optical network using the same
    11.
    发明申请
    Optical access network of wavelength division method and passive optical network using the same 审中-公开
    光接入网络的波分方法和无源光网络使用相同

    公开(公告)号：US20060045525A1

    公开(公告)日：2006-03-02

    申请号：US11199490

    申请日：2005-08-08

    申请人： Gyu-Woong Lee ,  Seong-Taek Hwang ,  Jae-Hoon Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Yong-Gyoo Kim ,  Dae-Kwang Jung

    发明人： Gyu-Woong Lee ,  Seong-Taek Hwang ,  Jae-Hoon Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Yong-Gyoo Kim ,  Dae-Kwang Jung

    IPC分类号： H04J14/00

    CPC分类号： H04B10/25753 ,  H04B10/25752 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298

    摘要： A wavelength division multiplexed optical access network including a central office for multiplexing first optical signals used for transmitting a high-speed wire data service to a subscriber side and second optical signals used for transmitting a wireless data service to a remote subscriber terminal, a remote node connected to the central office through an optical fiber and for de-multiplexing a multiplexed optical signal received from the central office, a plurality of subscribers connected to the remote node, each subscriber receiving a first optical signal having a corresponding wavelength from among the de-multiplexed first optical signals, and a plurality of radio access units connected to the remote node, each radio access unit converting a second optical signal having a corresponding wavelength from among the de-multiplexed second optical signals into a wireless electric signal and wirelessly transmitting the wireless electric signal.

    摘要翻译： 一种波分多路复用光接入网络，包括用于将用于向用户侧发送高速有线数据业务的第一光信号复用的中心局和用于向远程用户终端发送无线数据业务的第二光信号，远端节点 通过光纤连接到中心局，并且对从中心局接收的多路复用的光信号进行去多路复用，多个用户连接到远程节点，每个用户接收到具有相应波长的第一光信号， 多路复用的第一光信号和连接到远程节点的多个无线电接入单元，每个无线电接入单元将具有相应波长的第二光信号从解复用的第二光信号中转换成无线电信号，并无线地发送无线 电信号。

    Optical access network of wavelength division method and passive optical network using the same
    12.
    发明申请
    Optical access network of wavelength division method and passive optical network using the same 审中-公开
    光接入网络的波分方法和无源光网络使用相同

    公开(公告)号：US20060045524A1

    公开(公告)日：2006-03-02

    申请号：US11156155

    申请日：2005-06-17

    申请人： Gyu-Woong Lee ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Dae-Kwang Jung

    发明人： Gyu-Woong Lee ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Dae-Kwang Jung

    IPC分类号： H04J14/00

    CPC分类号： H04B10/25753 ,  H04B10/25752 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298

    摘要： An optical access network of wavelength division method and passive optical network using the same are disclosed. The wavelength division multiplexed optical access network includes a central office for multiplexing first optical signals for wire communication and second optical signals for wireless communication and a remote node connected to the central office through an optical fiber and for demultiplexing a multiplexed optical signal received from the central office. A plurality of subscribers may be connected to the remote node. Each subscriber receives a first optical signal having a corresponding wavelength from among the demultiplexed first optical signals. The network also includes a plurality of radio relay stations connected to the remote node, each radio relay station converting a second optical signal having a corresponding wavelength from among the demultiplexed second optical signals into a radio electric signal and wirelessly transmitting the radio electric signal.

    摘要翻译： 公开了一种波分复用光接入网络及其使用的无源光网络。 波分多路复用光接入网包括一个中心局，用于多路复用用于有线通信的第一光信号和用于无线通信的第二光信号，以及通过光纤连接到中心局的远端节点，以及从中心接收的复用光信号 办公室。 多个用户可以连接到远程节点。 每个用户从解复用的第一光信号中接收具有相应波长的第一光信号。 网络还包括连接到远程节点的多个无线电中继站，每个无线电中继站将具有相应波长的第二光信号从解复用的第二光信号中转换为无线电信号，并无线发射无线电信号。

    Optical transmission device
    15.
    发明申请
    Optical transmission device 审中-公开
    光传输装置

    公开(公告)号：US20050058461A1

    公开(公告)日：2005-03-17

    申请号：US10843233

    申请日：2004-05-10

    申请人： Han-Lim Lee ,  Hoon Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Sung-Kee Kim ,  Gyu-Woong Lee

    发明人： Han-Lim Lee ,  Hoon Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Sung-Kee Kim ,  Gyu-Woong Lee

    IPC分类号： G02F1/035 ,  H04B10/2507 ,  H04B10/2513 ,  H04B10/2537 ,  H04B10/516 ,  H04B10/61 ,  H04B10/04

    CPC分类号： H04B10/505 ,  H04B10/5055 ,  H04B10/5167

    摘要： A duobinary optical transmission device that uses a duobinary optical transmission technique is disclosed. The duobinary optical transmission device may use an X-cut Mach-Zehnder interferometer type modulator. The duobinary optical transmission device includes a light source that outputs a carrier wave. A duobinary encoder encodes an input non-return-to-zero (NRZ) electrical signal. A low pass filter (LPF) converts the encoded signal into a 3-level electrical signal. An optical intensity modulator modulates the phase and light intensity of the carrier wave according to the 3-level electrical signal and outputs a 2-level optical duobinary signal. The optical intensity modulator may be an X-cut optical intensity modulator including a substrate; an optical waveguide formed on the substrate, and an electrode for applying an electric field.

    摘要翻译： 公开了一种使用双二进制光传输技术的双向光传输装置。 双向光传输装置可以使用X切割马赫 - 曾德干涉仪型调制器。 二元光传输装置包括输出载波的光源。 二进制编码器对输入的不归零（NRZ）电信号进行编码。 低通滤波器（LPF）将编码信号转换为3级电信号。 光强调制器根据3电平电信号调制载波的相位和光强，并输出2电平的光双二进制信号。 光强度调制器可以是包括衬底的X切割光强度调制器; 形成在基板上的光波导和用于施加电场的电极。

    Multichannel bidirectional optical transceiver
    16.
    发明申请
    Multichannel bidirectional optical transceiver 审中-公开
    多通道双向光收发器

    公开(公告)号：US20070183784A1

    公开(公告)日：2007-08-09

    申请号：US11581241

    申请日：2006-10-16

    申请人： Gyu-Woong Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim

    发明人： Gyu-Woong Lee ,  Chang-Sup Shim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim

    IPC分类号： H04B10/00

    CPC分类号： H04B10/40

    摘要： A multichannel bidirectional optical transceiver is disclosed. The transceiver includes an optical fiber transmitting downstream optical signals and receiving upstream optical signals, a plurality of vertical surface light-emitting sources that generate the downstream optical signals and a plurality of vertical surface light-receiving detectors that receive the upstream optical signals. The transceiver also includes an optical coupler that outputs the downstream optical signals and the upstream optical signals received through the optical fiber to the optical fiber and the vertical surface light-receiving detectors, respectively.

    摘要翻译： 公开了一种多通道双向光收发器。 收发器包括发送下行光信号并接收上游光信号的光纤，产生下行光信号的多个垂直面发光源和接收上游光信号的多个垂直面光接收检测器。 收发器还包括光耦合器，其将下行光信号和通过光纤接收的上行光信号分别输出到光纤和垂直表面光接收检测器。

    Metro wavelength division multiplexing network
    17.
    发明授权
    Metro wavelength division multiplexing network 失效
    城域波分复用网络

    公开(公告)号：US07190510B2

    公开(公告)日：2007-03-13

    申请号：US10869775

    申请日：2004-06-16

    申请人： Seong-Taek Hwang ,  Gyu-Woong Lee ,  Chang-Sup Shim ,  Yun-Je Oh

    发明人： Seong-Taek Hwang ,  Gyu-Woong Lee ,  Chang-Sup Shim ,  Yun-Je Oh

    IPC分类号： H01S4/00 ,  H01S5/00 ,  H04B10/12

    CPC分类号： H04B10/2916 ,  H01S3/06758 ,  H01S3/0941 ,  H01S3/302

    摘要： A metro wavelength division multiplexing network is disclosed and includes a plurality of optical repeaters connected to each other through an optical fiber link, wherein each of the optical repeaters includes a Raman gain medium for Raman-amplifying inputted optical signals, an amplification medium having a center wavelength different from a gain center wavelength of the Raman gain medium and amplifying a Raman-amplified optical signals, and a pumping unit for pumping the Raman gain medium.

    摘要翻译： 公开了一种城域波分复用网络，并且包括通过光纤链路彼此连接的多个光中继器，其中每个光中继器包括用于拉曼放大输入光信号的拉曼增益介质，具有中心的放大介质 波长与拉曼增益介质的增益中心波长不同，并放大拉曼放大的光信号，以及用于泵浦拉曼增益介质的泵浦单元。

    Optical modulating apparatus having bias controller and bias control method
    18.
    发明申请
    Optical modulating apparatus having bias controller and bias control method 失效
    具有偏置控制器和偏置控制方法的光调制装置

    公开(公告)号：US20050157290A1

    公开(公告)日：2005-07-21

    申请号：US10883055

    申请日：2004-07-01

    申请人： Gyu-Woong Lee ,  Yun-Je Oh ,  Seong-Taek Hwang

    发明人： Gyu-Woong Lee ,  Yun-Je Oh ,  Seong-Taek Hwang

    IPC分类号： G02F1/035 ,  G01C3/00 ,  G02B26/00

    CPC分类号： H04B10/505 ,  G02F1/0123 ,  H04B10/50575 ,  H04B10/58

    摘要： Disclosed are an optical modulating apparatus having a bias controller and a bias control method using the same, which can automatically perform a bias adjust so as to keep the optical output characteristic of an optical modulator constant. The optical modulating apparatus includes an optical modulator to modulate an optical carrier using a bias signal; and a bias controller to adjust the bias signal of the optical modulator by detecting a second harmonic signal of the modulated optical signal, setting a minimum point of the second harmonic signal as a reference bias voltage, and then comparing a magnitude of the second harmonic signal that changes according to an external environment with a magnitude of a signal generated from the reference bias voltage.

    摘要翻译： 公开了具有偏置控制器和使用该偏置控制器的偏置控制方法的光调制装置，其可以自动执行偏置调整，以保持光调制器的光输出特性恒定。 光调制装置包括使用偏置信号调制光载波的光调制器; 以及偏置控制器，通过检测所述调制光信号的二次谐波信号来调整所述光调制器的偏置信号，将所述二次谐波信号的最小点设定为基准偏置电压，然后比较所述二次谐波信号的幅度 其根据具有从参考偏置电压产生的信号的大小的外部环境而变化。

    Duobinary optical transmission device using at least one semiconductor optical amplifier
    20.
    发明申请
    Duobinary optical transmission device using at least one semiconductor optical amplifier 失效
    使用至少一个半导体光放大器的二元光传输装置

    公开(公告)号：US20050047797A1

    公开(公告)日：2005-03-03

    申请号：US10849070

    申请日：2004-05-19

    申请人： Han-Lim Lee ,  Gyu-Woong Lee ,  Yun-Je Oh ,  Seong-Taek Hwang

    发明人： Han-Lim Lee ,  Gyu-Woong Lee ,  Yun-Je Oh ,  Seong-Taek Hwang

    IPC分类号： H01S5/50 ,  H04B10/25 ,  H04B10/2507 ,  H04B10/516 ,  H04B10/556 ,  H04B10/588 ,  H04B10/61 ,  H04B10/04

    CPC分类号： H04B10/505 ,  H04B10/5055 ,  H04B10/508

    摘要： A duobinary optical transmission device provides duobinary optical transmission with improved quality by a technique that does not require an electrical low pass filter LPF.A duobinary optical transmission device includes at least one semiconductor optical amplifier (SOA). A light source outputs a carrier wave as an optical signal. A precoder encodes an input of a non-return-to-zero (NRZ) electrical signal. An interferometer type semiconductor optical amplification unit modulates the carrier wave according to a change of an applied bias current coupled to the encoded signal. An optical band pass filter (OBPF) receives the phase-modulated optical signal from the semiconductor optical amplification unit, filters the received phase-modulated optical signal according to a designated band, and outputs an optical duobinary signal.

    摘要翻译： 双二进制光传输装置通过不需要电气低通滤波器LPF的技术提供具有改进质量的双向光传输。双二进制光传输装置包括至少一个半导体光放大器（SOA）。 光源输出载波作为光信号。 预编码器对不归零（NRZ）电信号的输入进行编码。 干涉仪型半导体光放大单元根据耦合到编码信号的施加的偏置电流的变化来调制载波。 光带通滤波器（OBPF）从半导体光放大单元接收相位调制光信号，根据指定频带对接收的相位调制光信号进行滤波，并输出光双二进制信号。