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    Wavelength division multiplexed passive optical network
    101.
    发明申请
    Wavelength division multiplexed passive optical network 审中-公开
    波分复用无源光网络

    公开(公告)号：US20050158049A1

    公开(公告)日：2005-07-21

    申请号：US10915182

    申请日：2004-08-09

    申请人： Gyu-Woong Lee ,  Seong-Taek Hwang

    发明人： Gyu-Woong Lee ,  Seong-Taek Hwang

    IPC分类号： H04B10/12 ,  H04B10/207 ,  H04J14/02 ,  H04J14/00

    CPC分类号： H04J14/0221

    摘要： A wavelength division multiplexed passive optical network (WDM PON) is disclosed. In one aspect, WDM-PON comprises a central office comprising a plurality of semiconductor optical amplifiers each adapted to output an optical signal modulated in accordance with data inputted thereto, and a wavelength division multiplexer adapted to multiplex the optical signals outputted from the semiconductor optical amplifiers, and a remote node connected to the central office via a main optical fiber, adapted to distribute the optical signals received, on to corresponding distribution optical fibers connected thereto, and a plurality of optical network units connected to the remote node via corresponding distribution optical fibers, the optical network units receiving from the remote node the optical signals associated therewith. In another aspect of the invention, the central office further comprises an amplifier for amplifying the multiplexed signal.

    摘要翻译： 公开了一种波分复用无源光网络（WDM PON）。 一方面，WDM-PON包括一个中心局，包括多个半导体光放大器，每个半导体光放大器适于输出根据输入的数据进行调制的光信号;以及波分复用器，用于复用从半导体光放大器输出的光信号 以及经由主光纤连接到中心局的远程节点，其适于将接收到的光信号分配到相应的分配光纤上，并且经由相应的分配光纤连接到远程节点的多个光网络单元 ，从远程节点接收与其相关联的光信号的光网络单元。 在本发明的另一方面，中心局还包括用于放大多路复用信号的放大器。

    Dispersion-compensated Raman optical fiber amplifier
    102.
    发明授权
    Dispersion-compensated Raman optical fiber amplifier 失效
    色散补偿拉曼光纤放大器

    公开(公告)号：US06898003B2

    公开(公告)日：2005-05-24

    申请号：US10284787

    申请日：2002-10-31

    申请人： Seong-Taek Hwang ,  Hyung-lin Kwon

    发明人： Seong-Taek Hwang ,  Hyung-lin Kwon

    IPC分类号： G02F1/35 ,  G02B6/34 ,  G02B6/38 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/30 ,  H04B10/2507 ,  H04B10/2525 ,  H04B10/29 ,  H04B10/291 ,  H01S3/00

    CPC分类号： G02B6/29376 ,  G02B6/02261 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/10023 ,  H01S3/302 ,  H04B10/2525 ,  H04B10/2916 ,  H04B10/2941 ,  H04B2210/003

    摘要： Disclosed is a dispersion-compensating, Raman optical fiber amplifier used in an optical communications system of the type having an optical transmission block for transmitting wavelength division multiplexed optical signals through a fiber and an optical receiving block for receiving the optical signals through the fiber. The inventive amplifier includes: a circulator for outputting optical signals that are inputted through a first end connected to the fiber to a second end and for outputting optical signals that are reflected through the second end to a third end connected to the fiber; a dispersion-compensating fiber for compensating optical signals passing therethrough and for outputting optical signals after performing a Raman amplification; a pumping light source for pumping the dispersion-compensating fiber and for outputting a pumping light having a designated wavelength; a wavelength selective coupler for outputting the pumping light to the dispersion-compensating fiber; and, a reflector for reflecting the Raman pumped optical signals and for reflecting the optical signals back into the dispersion-compensating fiber.

    摘要翻译： 公开了一种用于具有通过光纤传输波分复用光信号的光传输块和用于通过光纤接收光信号的光接收块的光通信系统中的色散补偿拉曼光纤放大器。 本发明的放大器包括：环行器，用于输出通过连​​接到光纤的第一端输入到第二端的光信号，并用于输出通过第二端反射到连接到光纤的第三端的光信号; 用于补偿经过其中的光信号并用于在执行拉曼放大之后输出光信号的色散补偿光纤; 用于泵浦色散补偿光纤并输出具有指定波长的泵浦光的泵浦光源; 用于将所述泵浦光输出到所述色散补偿光纤的波长选择耦合器; 以及用于反射拉曼泵浦光信号并将光信号反射回色散补偿光纤的反射器。

    Wideband light source
    104.
    发明申请
    Wideband light source 失效
    宽带光源

    公开(公告)号：US20050105169A1

    公开(公告)日：2005-05-19

    申请号：US10854347

    申请日：2004-05-26

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

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

    IPC分类号： H01S3/10 ,  H01S3/06 ,  H01S3/067 ,  H01S3/23 ,  H01S3/00

    CPC分类号： H01S3/067

    摘要： A wideband light source is disclosed. The wideband light source includes a first optical amplifier for generating and amplifying a C-band spontaneous emission light, a second optical amplifier for generating C-band and L-band spontaneous emission lights which is pumped by the C-band spontaneous emission light to amplify an L-band spontaneous emission light, and a reflector positioned between the first and second optical amplifiers to reflect the C-band spontaneous emission light provided from the first optical amplifier back to the first optical amplifier and the C-band and L-band spontaneous emission lights provided from the second optical amplifier back to the second optical amplifier.

    摘要翻译： 公开了一种宽带光源。 宽带光源包括用于产生和放大C波段自发发射光的第一光放大器，用于产生C波段和L波段自发发射光的第二光放大器，其由C波段自发发射光泵浦以放大 L波段自发发射光和位于第一和第二光放大器之间的反射器，以将从第一光放大器提供的C波段自发发射光反射回第一光放大器，C波段和L波段自发 从第二光放大器提供的发射光返回到第二光放大器。

    Dual-port broadband light source with independently controllable output powers
    105.
    发明申请
    Dual-port broadband light source with independently controllable output powers 失效
    双端口宽带光源，具有独立可控的输出功率

    公开(公告)号：US20050069252A1

    公开(公告)日：2005-03-31

    申请号：US10825813

    申请日：2004-04-16

    申请人： Seong-Taek Hwang ,  Yun-Je Oh ,  Kwan-Soo Lee

    发明人： Seong-Taek Hwang ,  Yun-Je Oh ,  Kwan-Soo Lee

    IPC分类号： H01S3/06 ,  G02B6/26 ,  G02B6/42 ,  H01S3/00 ,  H01S3/067 ,  H01S3/094 ,  H01S3/10 ,  H01S3/16 ,  H01S5/06

    CPC分类号： H01S3/06754 ,  H01S3/0064 ,  H01S3/06758 ,  H01S3/094011 ,  H01S3/094015 ,  H01S3/094023 ,  H01S3/1608

    摘要： A dual-port broadband light source with independently controllable output powers includes a broadband light source having a first gain medium pumped by an input pump light in order to output a first amplified spontaneous emission through both ends thereof. A second gain medium pumped by another input pump light in order to output a second amplified spontaneous emission through both ends thereof. A reflector disposed between the opposite ends of the first and second gain mediums to reflect the input first and second amplified spontaneous emissions. The first and second amplified spontaneous emissions output from the first and second gain mediums are then output to the outside through first and second output terminals.

    摘要翻译： 具有独立可控的输出功率的双端口宽带光源包括具有由输入泵浦光泵浦的第一增益介质的宽带光源，以便通过其两端输出第一放大的自发发射。 第二增益介质由另一输入泵浦泵浦，以便通过其两端输出第二放大的自发发射。 设置在第一和第二增益介质的相对端之间的反射器，以反映输入的第一和第二放大的自发辐射。 从第一和第二增益介质输出的第一和第二放大的自发辐射然后通过第一和第二输出端输出到外部。

    Precoder and optical duo-binary transmission apparatus using the same
    106.
    发明申请
    Precoder and optical duo-binary transmission apparatus using the same 失效
    预编码器和光二进制二进制传输装置使用

    公开(公告)号：US20050068209A1

    公开(公告)日：2005-03-31

    申请号：US10807048

    申请日：2004-03-23

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

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

    IPC分类号： H04J3/00 ,  G11B20/10 ,  H03M5/06 ,  H03M13/00 ,  H04B10/00 ,  H04B10/516 ,  H04B10/556 ,  H04B10/61

    CPC分类号： H03M5/06 ,  G11B20/10 ,  H03M13/00

    摘要： A precoder for an optical duo-binary transmission apparatus disposing the precoder before a time division multiplexer includes a judgment unit for judging whether an odd number or even number of ‘1’s exist in data input signals of N channels inputted at an nth time of channel input. Further included in the precoder is a toggle unit for toggling an output signal of the judgment unit when the judgment is odd, and for determining an output value for one of the channels. The precoder also has an output unit for determining output values of other channels according to a respective data input signal and a predetermined channel from among the N channels.

    摘要翻译： 用于在时分多路复用器之前配置预编码器的光二元传输装置的预编码器包括判断单元，用于判断在第n时刻输入的N个信道的数据输入信号中是否存在“1”的奇数或偶数 的通道输入。 进一步包括在预编码器中的是用于当判断为奇数时用于切换判断单元的输出信号并且用于确定一个通道的输出值的切换单元。 预编码器还具有输出单元，用于根据相应的数据输入信号和N个信道中的预定信道来确定其它信道的输出值。

    Duobinary optical transmitter
    107.
    发明申请
    Duobinary optical transmitter 失效
    双色光发射机

    公开(公告)号：US20050053382A1

    公开(公告)日：2005-03-10

    申请号：US10862251

    申请日：2004-06-07

    申请人： Hoon Kim ,  Seong-Taek Hwang

    发明人： Hoon Kim ,  Seong-Taek Hwang

    IPC分类号： H04B10/40 ,  H04B10/25 ,  H04B10/50 ,  H04B10/516 ,  H04B10/548 ,  H04B10/58 ,  H04B10/60 ,  H04B10/61 ,  H04B10/00

    CPC分类号： H04B10/505 ,  H04B10/25137 ,  H04B10/5055 ,  H04B10/5167

    摘要： An optical transmitter for generating an optical signal includes: a precoder for coding an electrical signal of binary data; a continuous-wave (CW) light source for generating a continuous wave light; an optical phase modulator for modulating the phase of an optical signal outputted from the CW light source according to an electrical signal outputted from the precoder; a birefrigent material for bi-refracting a signal outputted from the optical phase modulator and for outputting the bi-refracted signal; and a polarizer for permitting only optical signals of a specific polarization direction to transmit therethrough when optical signals outputted from the birefrigent material are applied.

    摘要翻译： 一种用于产生光信号的光发射机包括：用于对二进制数据的电信号进行编码的预编码器; 用于产生连续波光的连续波（CW）光源; 光相位调制器，用于根据从预编码器输出的电信号调制从CW光源输出的光信号的相位; 用于双折射从所述光相位调制器输出的信号并输出​​所述双折射信号的双折射材料; 以及偏振器，用于仅施加从双重材料输出的光信号时，仅允许特定偏振方向的光信号透射。

    Self-healing wavelength division multiplexing-passive optical network system
    110.
    发明申请
    Self-healing wavelength division multiplexing-passive optical network system 失效
    自愈波分复用 - 无源光网络系统

    公开(公告)号：US20050008362A1

    公开(公告)日：2005-01-13

    申请号：US10721712

    申请日：2003-11-25

    申请人： Dae-Kwang Jung ,  Yun-Je Oh ,  Seong-Taek Hwang

    发明人： Dae-Kwang Jung ,  Yun-Je Oh ,  Seong-Taek Hwang

    IPC分类号： H04B10/03 ,  H04B10/032 ,  H04B10/27 ,  H04B10/272 ,  H04J3/16 ,  H04J14/00 ,  H04J14/02 ,  H04Q11/00 ,  G02F1/00

    CPC分类号： H04J14/0297 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/029 ,  H04Q11/0067 ,  H04Q2011/0016 ,  H04Q2011/0081

    摘要： A self-healing WDM (Wavelength Division Multiplexing)—PON (Passive Optical Network) system is disclosed and includes a CO (Central Office), a RN (Remote Node) and a plurality of subscriber units. The system includes a trunk working fiber and a trunk protection fiber for connecting the CO with the RN, a distribution working fiber, and a distribution protection fiber for connecting the RN with the subscriber units. The CO is connected to the trunk working fiber and the trunk protection fiber, and contains an optical switching unit switched when an error or communication failure occurs, an upstream working optical receiver and an upstream protection optical receiver for receiving upstream data, and a downstream working light source and a downstream protection light source for transmitting downstream data. Each subscriber unit is connected to the distribution working fiber and the distribution protection fiber, and contains an optical switching unit switched when an error or communication failure occurs, a downstream working optical receiver and a downstream protection optical receiver for receiving downstream data, and an upstream working light source and an upstream protection light source for transmitting downstream data.

    摘要翻译： 公开了一种自愈WDM（波分多路复用）-PON（被动光网络）系统，包括CO（中心局），RN（远端节点）和多个用户单元。 该系统包括中继线工作光纤和中继保护光纤，用于将CO与RN连接，分配工作光纤和用于将RN与用户单元连接的分布保护光纤。 CO连接到主干工作光纤和中继保护光纤，并且在发生错误或通信故障时包含切换的光交换单元，用于接收上游数据的上行工作光接收机和上游保护光接收机，以及下行工作 光源和用于传输下游数据的下游保护光源。 每个用户单元连接到分发工作光纤和分布保护光纤，并且包含当发生错误或通信故障时切换的光交换单元，用于接收下行数据的下行工作光接收机和下游保护光接收机，以及上游 工作光源和上游保护光源，用于传输下游数据。