公开(公告)号：US20060165412A1

公开(公告)日：2006-07-27

申请号：US11270145

申请日：2005-11-09

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

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

IPC分类号： H04J14/00

CPC分类号： H04J14/0291 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J2014/0253

摘要： Disclosed is a self-healing passive optical network comprising: a station, such as a central office, for outputting first and second multiplexed downstream optical signals to first and second feeder fibers; a remote node connected to the central office through the first and second feeder fibers to demultiplex each input multiplexed downstream optical signal into a plurality of downstream optical signals and to output the demultiplexed downstream optical signals; and a plurality of optical network units for receiving one or more downstream optical signals, each of the optical network units are connected to the remote node through at least one distribution fiber, wherein the station outputs the first and second multiplexed downstream optical signals to the first and second feeder fibers, respectively, and outputs the first and second multiplexed downstream optical signals to one of the first and second feeder fibers when a defect occurs in a fiber.

摘要翻译： 公开了一种自愈无源光网络，包括：诸如中心局的站，用于将第一和第二多路复用的下行光信号输出到第一和第二馈送光纤; 通过第一和第二馈送光纤连接到中心局的远程节点，将每个输入的多路复用下行光信号解复用为多个下行光信号，并输出解复用的下行光信号; 以及多个光网络单元，用于接收一个或多个下行光信号，每个光网络单元通过至少一个分配光纤连接到远程节点，其中，站将第一和第二多路复用下行光信号输出到第一 和第二馈电光纤，并且当光纤中出现缺陷时，将第一和第二多路复用的下行光信号输出到第一和第二馈送光纤之一。

公开(公告)号：US20060147211A1

公开(公告)日：2006-07-06

申请号：US11197175

申请日：2005-08-04

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

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

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： A wavelength division multiplexing passive optical network including optical lines for link is disclosed. The passive optical network includes a plurality of optical network units each of which generates an upstream optical signal; a central office for generating downstream optical signals to be provided to each of the optical network units, and differentially converting each of the upstream optical signals into a monitoring signal and a received signal. Changes in the wavelength of each of the upstream optical signals are monitored and if there is an abnormality in each optical line by using relevant monitoring signals. The network also includes a remote node for multiplexing and outputting the upstream optical signals to the central office, and demultiplexing and outputting the downstream optical signals to corresponding optical network units.

摘要翻译： 公开了包括用于链路的光线路的波分复用无源光网络。 无源光网络包括多个光网络单元，每个光网络单元产生上行光信号; 用于产生要提供给每个光网络单元的下行光信号的中心局，并且将每个上游光信号差分转换成监视信号和接收信号。 监视每个上行光信号的波长变化，并且如果通过使用相关的监视信号在每个光线路中存在异常。 该网络还包括用于将上行光信号复用并输出到中心局的远程节点，并将下行光信号解复用并输出到对应的光网络单元。

公开(公告)号：US07043116B2

公开(公告)日：2006-05-09

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： G02B6/26 ,  H01S3/00

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。

公开(公告)号：US07023534B2

公开(公告)日：2006-04-04

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： G01N21/00

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。

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。

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。

公开(公告)号：US20060029393A1

公开(公告)日：2006-02-09

申请号：US11143238

申请日：2005-06-02

申请人： Jae-Hoon Lee ,  Sung-Bum Park ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Hyun-Soo Kim

发明人： Jae-Hoon Lee ,  Sung-Bum Park ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Hyun-Soo Kim

IPC分类号： H04J14/00

CPC分类号： H04J14/02 ,  H04B10/296 ,  H04B10/2972

摘要： A wideband optical module includes a downward wideband light source for generating downward light, an upward wideband light source for generating upward light, a first circulator including a first to a third port for outputting multiplexed downward optical signals to the second port and for outputting multiplexed upward optical signals to the first port, a second circulator including a first to a third port for outputting multiplexed upward optical signals to the second port and for outputting multiplexed downward optical signals to the first port, a first optical coupler connected to the third port of the first circulator and the second port of the second circulator for outputting the downward light to the third port of the first circulator, and a second optical coupler connected to the second port of the first circulator and the third port of the second circulator for outputting the upward light to the third port of the second circulator.

摘要翻译： 宽带光模块包括用于产生向下的光的向下宽带光源，用于产生向上光的向上宽带光源，包括第一至第三端口的第一循环器，用于将多路复用的下行光信号输出到第二端口并用于输出多路复用 光信号到第一端口，第二循环器，包括第一至第三端口，用于将多路复用的上行光信号输出到第二端口，并将多路复用的下行光信号输出到第一端口;第一光耦合器，连接到第一端口的第三端口 第一循环器和第二循环器的第二端口，用于将向下的光输出到第一循环器的第三端口;以及第二光耦合器，连接到第一循环器的第二端口和第二循环器的第三端口，用于输出向上 光到第二个循环器的第三个端口。

公开(公告)号：US06931210B2

公开(公告)日：2005-08-16

申请号：US09946211

申请日：2001-09-05

申请人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Jun-Ho Koh ,  Yun-Je Oh

发明人： Sang-Ho Kim ,  Seong-Taek Hwang ,  Jun-Ho Koh ,  Yun-Je Oh

IPC分类号： H04B10/40 ,  H04B10/07 ,  H04B10/50 ,  H04B10/60 ,  H04B10/66 ,  H04L7/02 ,  H04B10/00 ,  H04B10/08 ,  H04B10/12 ,  H04B10/16 ,  H04B10/20

CPC分类号： H04B10/6932

摘要： Disclosed is a bit-rate-independent optical receiver including: a bit rate sensing unit for optoelectrically converting an input optical signal, while outputting a bit rate sensing signal; a variation sensing unit for outputting a bit rate variation sensing signal; a temperature sensing unit for sensing an internal temperature and outputting a temperature sensing signal; a signal reproducing unit for reproducing data and clocks, and in response to a clock correction signal, reproducing the data and clocks based on the clock correction signal; and, a control unit for calculating the bit rate based on the voltage level of the bit rate sensing signal in response to receiving the variation sensing signal, and compensating the calculated bit rate for errors resulting from a variation in temperature, and outputting a clock correction signal indicative of the temperature-compensated bit rate to the signal reproducing unit.

摘要翻译： 公开了一种比特率独立的光接收机，包括：比特率感测单元，用于在输出比特率感测信号的同时对输入的光信号进行光电转换; 用于输出比特率变化感测信号的变化感测单元; 温度感测单元，用于感测内部温度并输出温度感测信号; 信号再现单元，用于再现数据和时钟，并响应于时钟校正信号，基于时钟校正信号再现数据和时钟; 以及控制单元，用于响应于接收到变化感测信号而基于比特率感测信号的电压电平计算比特率，并且补偿由于温度变化导致的错误的计算比特率，并输出时钟校正 指示信号再现单元的温度补偿比特率的信号。

公开(公告)号：US06917464B2

公开(公告)日：2005-07-12

申请号：US10441445

申请日：2003-05-20

申请人： Hong-Seok Shin ,  Seong-Taek Hwang ,  Yun-Je Oh

发明人： Hong-Seok Shin ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： G02B5/28 ,  G02B5/30 ,  G02B6/00 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/00

CPC分类号： H04B10/506

摘要： Disclosed is a multi-lambda source for outputting an optical signal having a plurality of channels, the multi-lambda source comprising an optical fiber amplifier, having a back and front end, for amplifying an optical signal received from the back end and outputting ASE light to the back end, a reflector coupled to the back end of the optical fiber amplifier for reflecting a received optical signal, and a comb filter arranged between the optical fiber amplifier and the reflector and having a pass band of wavelengths for filtering the ASE light and generating the optical signal of the channels according to a transmission spectrum of the filtered ASE light.

摘要翻译： 公开了一种用于输出具有多个通道的光信号的多λ源，多λ源包括具有后端和前端的光纤放大器，用于放大从后端接收的光信号并输出​​ASE光 耦合到光纤放大器的后端以反射接收到的光信号的反射器和布置在光纤放大器和反射器之间并具有用于过滤ASE光的波长通带的梳状滤波器的反射器， 根据滤光后的ASE光的透射光谱产生信道的光信号。

公开(公告)号：US06891651B2

公开(公告)日：2005-05-10

申请号：US10619318

申请日：2003-07-14

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

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

IPC分类号： G02F1/015 ,  H01S5/00 ,  H01S5/022 ,  H01S5/042 ,  H01S5/14 ,  H04B10/2507 ,  H04B10/2543 ,  H04B10/40 ,  H04B10/50 ,  H04B10/516 ,  H04B10/60 ,  H04B10/61 ,  G02F1/01

CPC分类号： H01S5/146 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/02216 ,  H01S5/02284 ,  H01S5/0427

摘要： An EML transmitter having a band stop filter to improve the transmission characteristics before and after the transmission is provided. This is achieved by improving the chirp characteristics and the extinction ratio during the transmission of optical signals using an EML. The inventive EML transmitter includes: an EML for generating transmission light; a first lens for focusing optical signal outputs from the EML to prevent loss of the optical signals; a second lens for focusing the optical signals into a core portion of an optical line; and, a band stop filter for removing the D.C. component from the optical signals outputted by the EML.

摘要翻译： 提供具有带通滤波器以提高传输前后的传输特性的EML发射机。 这是通过使用EML在光信号传输期间改进啁啾特性和消光比来实现的。 本发明的EML发射机包括：用于产生传输光的EML; 用于聚焦来自EML的光信号输出的第一透镜，以防止光信号的损失; 第二透镜，用于将光信号聚焦到光线路的芯部; 以及用于从EML输出的光信号中去除直流分量的带阻滤波器。