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11. 发明申请

US20060045524A1 Optical access network of wavelength division method and passive optical network using the same 审中-公开
标题翻译：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。

12. 发明申请

US20060182445A1 Wavelength division multiplexed passive optical network system using light source wavelength-locked by injected incoherent light 审中-公开
标题翻译：波分复用无源光网络系统使用光源通过注入非相干光波长锁定
公开(公告)号：US20060182445A1
公开(公告)日：2006-08-17
申请号：US11355408
申请日：2006-02-16
申请人： Jae-Hoon Lee , Kwan-Soo Lee , Chang-Sup Shim , Gyu-Woong Lee , Seong-Taek Hwang
发明人： Jae-Hoon Lee , Kwan-Soo Lee , Chang-Sup Shim , Gyu-Woong Lee , Seong-Taek Hwang
IPC分类号： H04J14/00
CPC分类号： H04J14/0282 , H04J14/02 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/025
摘要： Disclosed is a wavelength-division-multiplexed passive optical network (WDM-PON) using a light source wavelength-locked by an injected incoherent light. The WDM-PON system includes: an injection light generating section, which includes a broadband light source emitting an incoherent optical signal, so as to provide a route for an uplink signal and a route for a downlink signal according to time; a central office for receiving the incoherent optical signal generated by the injection light generating section, transmitting a downlink light by wavelength-locking the received incoherent optical signal, receiving an uplink optical signal from a subscriber unit, and detecting a light from the received uplink optical signal; and the subscriber unit for receiving the incoherent optical signal generated by the injection light generating section, transmitting an uplink light by wavelength-locking the received incoherent optical signal, receiving a downlink optical signal from a central office, and detecting a light from the received downlink optical signal.
摘要翻译：公开了使用由注入的非相干光波长锁定的光源的波分复用无源光网络（WDM-PON）。 WDM-PON系统包括：注入光产生部分，其包括发射非相干光信号的宽带光源，以便根据时间为上行链路信号和下行链路信号的路由提供路由; 用于接收由注入光产生部分产生的非相干光信号的中心局，通过波长锁定接收到的非相干光信号，从用户单元接收上行光信号，以及从接收的上行光学信号; 以及用户单元，用于接收由注入光产生部分产生的非相干光信号，通过波长锁定接收的非相干光信号，从中心局接收下行链路光信号，并从接收的下行链路中检测光，发送上行光光信号。

13. 发明申请

US20050163508A1 Wavelength division multiplexed passive optical network 审中-公开
标题翻译：波分复用无源光网络
公开(公告)号：US20050163508A1
公开(公告)日：2005-07-28
申请号：US10915152
申请日：2004-08-09
申请人： Seong-Taek Hwang , Gyu-Woong Lee , Kwan-Soo Lee , Yun-Je Oh
发明人： Seong-Taek Hwang , Gyu-Woong Lee , Kwan-Soo Lee , Yun-Je Oh
IPC分类号： H04B10/12 , H04J14/02 , H04J14/00
CPC分类号： H04J14/02
摘要： A wavelength division multiplexed passive optical network (WDM PON) includes a central office that has: a broadband light source, a first wavelength division multiplexer to spectrum-slice light outputted from the light source, semiconductor optical amplifiers or variable optical attenuators, each modulating an associated one of spectrum-sliced lights in accordance with input data, and a second wavelength division multiplexer to multiplex optical signals respectively outputted from the semiconductor optical amplifiers. A remote node, connected to the central office via a main optical fiber, distributes the optical signals to distribution optical fibers, and, in, turn, to respective optical network units.
摘要翻译：波分复用无源光网络（WDM PON）包括：中心局，其具有：宽带光源，第一波分复用器，用于从光源输出的频谱切片光，半导体光放大器或可变光衰减器，根据输入数据关联一个频谱切割的光;以及第二波分复用器，用于复用从半导体光放大器分别输出的光信号。通过主光纤连接到中心局的远程节点将光信号分配到分配光纤，并且转向相应的光网络单元。

14. 发明授权

US07474858B2 Duobinary optical transmission device using at least one semiconductor optical amplifier 失效
标题翻译：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：US07474858B2
公开(公告)日：2009-01-06
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： H04B10/00
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。

15. 发明申请

US20050047797A1 Duobinary optical transmission device using at least one semiconductor optical amplifier 失效
标题翻译：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。

16. 发明申请

US20070147273A1 ROF link system for supporting various services 有权
标题翻译： ROF链路系统支持各种业务
公开(公告)号：US20070147273A1
公开(公告)日：2007-06-28
申请号：US11633838
申请日：2006-12-05
申请人： Han-Lim Lee , Seong-Taek Hwang , Byung-Jik Kim , Gyu-Woong Lee , Hoon Kim , Jae-Hoon Lee , Yong-Gyoo Kim , Sang-Ho Kim , Sung-Kee Kim
发明人： Han-Lim Lee , Seong-Taek Hwang , Byung-Jik Kim , Gyu-Woong Lee , Hoon Kim , Jae-Hoon Lee , Yong-Gyoo Kim , Sang-Ho Kim , Sung-Kee Kim
IPC分类号： H04J3/00
CPC分类号： H04B10/25758 , H04H20/69 , H04H20/71 , H04W88/085 , H04W88/10
摘要： Disclosed is a radio-over-fiber (ROF) system for supporting various services, the system comprising: a central access platform (CAP) for providing time division duplexing (TDD), frequency division duplexing (FDD), and broadcasting services, converting a TDD downward signal and FDD/broadcasting downward signals into optical signals, respectively, transmitting the converted optical signals to a remote access unit (RAU), converting a TDD upward signal and an FDD upward signal, which have been transmitted as optical signals from the RAU, into electric signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other; and the RAU for converting the TDD downward signal and FDD/broadcasting downward signals transmitted from the CAP into electric signals, respectively, converting the TDD upward signal and FDD upward signal to be transmitted to the CAP into optical signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other, wherein the RAU includes a plurality of signal filtering/separating/combining units, which wirelessly emit the TDD downward signal and FDD/broadcasting downward signals, having been converted into electric signals, through an antenna, and which separate wirelessly-received TDD upward signal and FDD upward signal from each other.
摘要翻译：公开了用于支持各种业务的无线电光纤（ROF）系统，该系统包括：用于提供时分双工（TDD），频分双工（FDD）和广播服务的中央接入平台（CAP） TDD向下信号和FDD /广播向下信号分别转换成光信号，将转换后的光信号发送到远程接入单元（RAU），转换已经作为光信号从RAU发送的TDD上行信号和FDD向上信号分别变成电信号，并使用光循环器，以便彼此分离上下信号; 以及分别将从CAP发送的TDD向下信号和FDD /广播向下信号转换成电信号的RAU，分别将TDD向上信号和FDD向上信号转换为发送到CAP的光信号，并使用光循环器，以便彼此分离上下信号，其中RAU包括多个信号滤波/分离/组合单元，其经过转换成电信号无线地发射TDD向下信号和FDD /广播向下信号，通过天线，并且将无线接收的TDD上行信号和FDD上行信号彼此分离。

17. 发明申请

US20050157290A1 Optical modulating apparatus having bias controller and bias control method 失效
标题翻译：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。

18. 发明授权

US07269311B2 Remote antenna unit and wavelength division multiplexing radio-over-fiber network 失效
标题翻译：远程天线单元和波分复用无线光纤网络
公开(公告)号：US07269311B2
公开(公告)日：2007-09-11
申请号：US11398324
申请日：2006-04-04
申请人： Yong-Gyoo Kim , Gyu-Woong Lee , Seong-Taek Hwang
发明人： Yong-Gyoo Kim , Gyu-Woong Lee , Seong-Taek Hwang
IPC分类号： G02B6/26
CPC分类号： H04B10/25755
摘要： Disclosed is a remote antenna unit and a wavelength division multiplexing network. The remote antenna unit includes: an optical circulator having a plurality of ports; an electric field absorption modulator having a first input/output end and a second reflective end, the electric field absorption modulator configured to demodulate an optical signal into a first data signal, and modulate the demodulated optical signal according to a second electric data signal; and a filter disposed between the optical circulator and the electric field absorption modulator, for the filter configured to transmit an optical signal having a particular wavelength from among optical signals input from a port of the optical circulator toward the electric field absorption modulator and reflecting the remaining optical signals into the port of the optical circulator, and inputting the optical signal from the electric field absorption modulator into the port of the optical circulator.
摘要翻译：公开了一种远程天线单元和波分复用网络。远程天线单元包括：具有多个端口的光循环器; 具有第一输入/输出端和第二反射端的电场吸收调制器，所述电场吸收调制器被配置为将光信号解调为第一数据信号，并根据第二电数据信号调制解调的光信号; 以及设置在所述光循环器和所述电场吸收调制器之间的滤波器，所述滤波器被配置为从从所述光循环器的端口向所述电场吸收调制器输入的光信号中发射具有特定波长的光信号，并反射剩余的光信号进入光环行器的端口，并将来自电场吸收调制器的光信号输入光环行器的端口。

19. 发明申请

US20070133995A1 Remote access unit and radio-over-fiber network using same 失效
标题翻译：远程访问单元和使用相同的光纤网络
公开(公告)号：US20070133995A1
公开(公告)日：2007-06-14
申请号：US11607700
申请日：2006-12-01
申请人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Gyu-Woong Lee , Hoon Kim , Sang-Ho Kim , Yong-Gyoo Kim , Sung-Kee Kim , Han-Lim Lee
发明人： Jae-Hoon Lee , Seong-Taek Hwang , Byung-Jik Kim , Gyu-Woong Lee , Hoon Kim , Sang-Ho Kim , Yong-Gyoo Kim , Sung-Kee Kim , Han-Lim Lee
IPC分类号： H04B10/00
CPC分类号： H04B10/25758
摘要： A remote access unit (RAU) apparatus, coupled to a central station (CS) of an RoF network through at least one optical fiber, and which RAU apparatus includes at least one antenna, includes: first and second antenna ports coupled to the at least one antenna; first and second optical fiber ports coupled to the at least one optical fiber; a first coupler for decoupling a first downstream signal of a first duplexing method and a second downstream signal of a second duplexing method, which are input through the first optical fiber port; a circulator for outputting the first downstream signal input from the first coupler to the first antenna port and outputting a first upstream signal of the first duplexing method input from the first antenna port to the second optical fiber port; and a second coupler for outputting the second downstream signal input from the first coupler to the second antenna port and outputting a second upstream signal of the second duplexing method input from the second antenna port to the second optical fiber port.
摘要翻译：一种远程接入单元（RAU）装置，其通过至少一个光纤耦合到RoF网络的中心站（CS），并且所述RAU设备包括至少一个天线，包括：耦合到所述至少一个天线的第一和第二天线端口一个天线耦合到所述至少一个光纤的第一和第二光纤端口; 用于去耦第一双工方法的第一下行信号和通过第一光纤端口输入的第二双工方法的第二下行信号的第一耦合器; 输出从第一耦合器输入的第一下行信号到第一天线端口的循环器，并输出从第一天线端口输入到第二光纤端口的第一双工方式的第一上行信号; 以及第二耦合器，用于将从第一耦合器输入的第二下行信号输出到第二天线端口，并输出从第二天线端口输入到第二光纤端口的第二双工方法的第二上行信号。

20. 发明授权

US07257330B2 Duobinary optical transmission apparatus using a semiconductor optical amplifier 失效
标题翻译：使用半导体光放大器的二元光传输装置
公开(公告)号：US07257330B2
公开(公告)日：2007-08-14
申请号：US10691359
申请日：2003-10-22
申请人： Gyu-Woong Lee , Sung-Kee Kim , Seong-Taek Hwang , Yun-Je Oh
发明人： Gyu-Woong Lee , Sung-Kee Kim , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H04B10/04 , H04B10/12 , G02F1/01 , G02F1/03
CPC分类号： H04B10/25137 , H04B10/505 , H04B10/5055 , H04B10/5167
摘要： Disclosed is a duobinary optical transmission apparatus using a semiconductor optical amplifier (SOA). The duobinary optical transmission apparatus includes a light source for generating a carrier wave; a duobinary precoder for encoding an input (non return to zero) electric signal; a semiconductor optical amplification unit to amplify the encoded signal from the duobinary precoder, wherein the amplification unit receives an optical amplification gain difference that varies with a bias current combined with the encoded signal; and an optical band pass filter for receiving a phase-modulated optical signal from the semiconductor optical amplification unit, filtering the received optical signal to a prescribed bandwidth, and thereby generates a duobinary optical signal.
摘要翻译：公开了使用半导体光放大器（SOA）的二元光传输装置。二元光传输装置包括用于产生载波的光源; 用于对输入（不归零）电信号进行编码的二进制预编码器; 半导体光放大单元，用于放大来自双二进制预编码器的编码信号，其中放大单元接收随着与编码信号组合的偏置电流而变化的光放大增益差; 以及光学带通滤波器，用于从半导体光放大单元接收相位调制的光信号，将接收到的光信号过滤到规定的带宽，从而产生双二进制的光信号。

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