公开(公告)号：US06424664B1

公开(公告)日：2002-07-23

申请号：US09497344

申请日：2000-02-03

申请人： Wang-Yuhl Oh ,  Joon-Hak Bang ,  Sang-Soo Lee ,  Hyun-Jae Lee ,  Je-Soo Ko ,  Wan-Seok Seo

发明人： Wang-Yuhl Oh ,  Joon-Hak Bang ,  Sang-Soo Lee ,  Hyun-Jae Lee ,  Je-Soo Ko ,  Wan-Seok Seo

IPC分类号： H01S330

CPC分类号： H01S3/302 ,  H01S3/067 ,  H01S3/06791 ,  H01S3/08086 ,  H01S3/1608

摘要： Disclosed is a Brillouin erbium-fiber laser system producing multiwavelengths with a dual spacing of 10 GHz and 20 GHz. The Brillouin erbium-fiber laser system includes: a Sagnac reflector generating even- and odd-order Strokes waves by launching input lights, a first unit forming a first resonator with the Sagnac reflector, wherein the first unit is coupled to a first directional coupler in the Sagnac reflector, a second unit forming a second resonator with the Sagnac reflector, wherein the second unit is coupled to the first directional coupler in the Sagnac reflector, and a third unit for inputting Brillouin pump light into one of first and the second units, whereby the optical fiber laser system outputs multiwavelengths with a dual spacing.

摘要翻译： 公开了一种布里渊铒光纤激光系统，其产生具有10GHz和20GHz的双间隔的多波长。 布里渊铒光纤激光系统包括：Sagnac反射器，通过发射输入光产生偶数和奇数阶冲击波，第一单元与Sagnac反射器形成第一谐振器，其中第一单元耦合到第一定向耦合器 Sagnac反射器，形成具有Sagnac反射器的第二谐振器的第二单元，其中第二单元耦合到Sagnac反射器中的第一定向耦合器，以及第三单元，用于将布里渊泵浦光输入第一和第二单元之一， 由此光纤激光系统以双重间隔输出多波长。

公开(公告)号：US07092635B2

公开(公告)日：2006-08-15

申请号：US09739903

申请日：2000-12-20

申请人： Sang-Soo Lee ,  Je-Soo Ko ,  Hyun-Jae Lee ,  Wang-Yuhl Oh ,  Dong-Yole Choi ,  Wan-Seok Seo

发明人： Sang-Soo Lee ,  Je-Soo Ko ,  Hyun-Jae Lee ,  Wang-Yuhl Oh ,  Dong-Yole Choi ,  Wan-Seok Seo

IPC分类号： H04J14/02

CPC分类号： H04B10/2537

摘要： The present invention discloses an apparatus for suppressing stimulated Brillouin scattering and the method thereof that a threshold fiber input power is raised in order to prevent loss of an inputted light by stimulated Brillouin scattering being generated in a case that a signal having a strong intensity is inputted to the optical fiber and so a light signal having more strong intensity can be inputted to the optical fiber. The apparatus for suppressing the SBS includes a plurality of first transmission unit, each of which has a wavelength separation, for transmitting information signals through a signal channel; and a second transmission unit for generating and transmitting a supervisory signal of which a modulation frequency and an intensity generates a phase modulation to the plurality of information signals, through a supervisory channel. The modulation frequency and the intensity of the supervisory signal are modulated in phase to the information signals by a cross phase modulation effect, thereby broadening a line width of the information signal.

摘要翻译： 本发明公开了一种用于抑制受激布里渊散射的装置及其提高阈值光纤输入功率的方法，以便在输入强烈强度的信号的情况下产生受激布里渊散射时输入的光的损失 可以将光强度更强的光信号输入到光纤。 用于抑制SBS的装置包括多个具有波长分离的第一传输单元，用于通过信号信道发送信息信号; 以及第二传输单元，用于通过监控信道生成和发送调制频率和强度对多个信息信号产生相位调制的监控信号。 监控信号的调制频率和强度通过交叉相位调制效应相位调制到信息信号，从而拓宽信息信号的线宽。

公开(公告)号：US20060104317A1

公开(公告)日：2006-05-18

申请号：US11149796

申请日：2005-06-09

申请人： Joon-Hak Bang ,  Je-Soo Ko

发明人： Joon-Hak Bang ,  Je-Soo Ko

IPC分类号： H04J3/02

CPC分类号： H04J3/1617 ,  H04L69/18

摘要： Provided are a multi-protocol signal processing apparatus for a next-generation Synchronous Digital Hierarchy (NG-SDH) transponder, and a method thereof. The multi-protocol signal processing apparatus for an NG-SDH transponder, which includes: a sub-signal processing unit for classifying and processing multi-protocol sub-signals based on kinds; an interfacing unit for making interface between the sub-signal processing unit and an optical signal generating unit the same for the multi-protocol sub-signals to use the multi-protocol sub-signals in Synchronous Digital Hierarchy (SDH) flexibly with no regard to the kinds of the multi-protocol sub-signals; and the optical signal generating unit for generating SDH optical signals by aggregating the multi-protocol sub-signals having a predetermined capacity which are transmitted through the interfacing unit into SDH signals, performing framing, and performing optical/electrical (O/E) conversion on the SDH signals in an optical module.

摘要翻译： 提供了一种用于下一代同步数字体系（NG-SDH）应答器的多协议信号处理装置及其方法。 一种用于NG-SDH应答器的多协议信号处理装置，包括：用于基于种类对多协议子信号进行分类和处理的子信号处理单元; 接口单元，用于在子信号处理单元和光信号生成单元之间形成与多协议子信号相同的接口，以在灵活地使用同步数字体系（SDH）中的多协议子信号，而不考虑 多协议子信号的种类; 以及光信号生成单元，用于通过将具有预定容量的多协议子信号聚合到通过接口单元发送的SDH信号中，生成SDH光信号，并进行成帧，并且进行光/电（O / E）转换 光模块中的SDH信号。

公开(公告)号：US20050141582A1

公开(公告)日：2005-06-30

申请号：US10880766

申请日：2004-06-28

申请人： Sang-Soo Lee ,  Heuk Park ,  Hyunwoo Cho ,  Sang-Kyu Lim ,  Je-Soo Ko

发明人： Sang-Soo Lee ,  Heuk Park ,  Hyunwoo Cho ,  Sang-Kyu Lim ,  Je-Soo Ko

IPC分类号： H04B10/04 ,  G02F2/00 ,  H01S3/067 ,  H01S3/097 ,  H01S3/30 ,  H03D9/00 ,  H04B10/145

CPC分类号： H01S3/302 ,  G02F2/002 ,  H01S3/067 ,  H03D9/00 ,  H04B10/50

摘要： An apparatus and a method for generating an optical carrier is disclosed. The apparatus includes: a light source generating a pump light; a SBS generator for stimulated Brillouin scattering the pump light to generate a stokes light from the light source; an attenuator for controlling an amplitude of the pump light from the light source to generate an amplitude controlled pump light; and a detector for heterodyne beating the stokes light and the amplitude controlled pump light to generate an optical carrier.

摘要翻译： 公开了一种用于产生光学载体的装置和方法。 该装置包括：产生泵浦光的光源; 用于受激布里渊的SBS发生器将泵浦光散射以产生来自光源的斯托克斯光; 衰减器，用于控制来自光源的泵浦光的振幅，以产生振幅控制的泵浦光; 以及用于外差打击斯托克斯光和振幅控制的泵浦光的检测器，以产生光学载体。

公开(公告)号：US20050129411A1

公开(公告)日：2005-06-16

申请号：US10876436

申请日：2004-06-24

申请人： Hyunwoo Cho ,  Sang-Soo Lee ,  Sang-Kyu Lim ,  Jyung-Chan Lee ,  Seung-Il Myong ,  Je-Soo Ko

发明人： Hyunwoo Cho ,  Sang-Soo Lee ,  Sang-Kyu Lim ,  Jyung-Chan Lee ,  Seung-Il Myong ,  Je-Soo Ko

IPC分类号： H04B10/04 ,  G02F1/01 ,  H04B10/155 ,  G02F1/035 ,  H04B10/00

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

摘要： Provided are an apparatus for optimizing bias voltage of an electro-optic modulator, a method therefor, and an optical transmission system using the method. The present research provides a bias voltage optimizing apparatus of an electro-optic modulator that can stabilize bias voltage supplied to the electro-optic modulator through automatic bias voltage initialization control by considering the point that the form of an optical output signal and the intensity of a clock component are changed according to the bias voltage of the electro-optic modulator, a method therefor and an optical transmission system using the method. The apparatus includes: a clock extracting unit for extracting a clock frequency component from the frequency components in a wideband spectrum of the electro-optic modulator; a control unit for finding a point of the lowest electric intensity by detecting an electric intensity of the extracted frequency component and controlling the bias voltage adaptively by changing the bias voltage; and a bias voltage adjusting unit for controlling the bias voltage of the electro-optic modulator under the control of the bias voltage controlling unit.

摘要翻译： 提供一种用于优化电光调制器的偏置电压的装置，其方法和使用该方法的光传输系统。 本研究提供了一种电光调制器的偏置电压优化装置，通过考虑光输出信号的形式和光输出信号的强度，可以通过自动偏置电压初始化控制来稳定提供给电光调制器的偏置电压 时钟分量根据电光调制器的偏置电压，其方法和使用该方法的光传输系统而改变。 该装置包括：时钟提取单元，用于从电光调制器的宽带频谱中的频率分量中提取时钟频率分量; 控制单元，用于通过检测所提取的频率分量的电强度并通过改变所述偏置电压自适应地控制所述偏置电压来找到最低电强度的点; 以及偏置电压调整单元，用于在偏置电压控制单元的控制下控制电光调制器的偏置电压。

公开(公告)号：US07142570B2

公开(公告)日：2006-11-28

申请号：US10880766

申请日：2004-06-28

申请人： Sang-Soo Lee ,  Heuk Park ,  Hyunwoo Cho ,  Sang-Kyu Lim ,  Je-Soo Ko

发明人： Sang-Soo Lee ,  Heuk Park ,  Hyunwoo Cho ,  Sang-Kyu Lim ,  Je-Soo Ko

IPC分类号： G02F1/35 ,  G01S2/02 ,  H01S3/00 ,  H01S3/10 ,  H01S3/092

CPC分类号： H01S3/302 ,  G02F2/002 ,  H01S3/067 ,  H03D9/00 ,  H04B10/50

摘要： An apparatus and a method for generating an optical carrier is disclosed. The apparatus includes: a light source generating a pump light; a SBS generator for stimulated Brillouin scattering the pump light to generate a stokes light from the light source; an attenuator for controlling an amplitude of the pump light from the light source to generate an amplitude controlled pump light; and a detector for heterodyne beating the stokes light and the amplitude controlled pump light to generate an optical carrier.

摘要翻译： 公开了一种用于产生光学载体的设备和方法。 该装置包括：产生泵浦光的光源; 用于受激布里渊的SBS发生器将泵浦光散射以产生来自光源的斯托克斯光; 衰减器，用于控制来自光源的泵浦光的振幅，以产生振幅控制的泵浦光; 以及用于外差打击斯托克斯光和振幅控制的泵浦光的检测器，以产生光学载体。

公开(公告)号：US07180343B2

公开(公告)日：2007-02-20

申请号：US11223277

申请日：2005-09-09

申请人： Jong-Yoon Shin ,  Je-Soo Ko

发明人： Jong-Yoon Shin ,  Je-Soo Ko

IPC分类号： H03L7/00

CPC分类号： H04L7/0075

摘要： An apparatus for synchronizing a clock using a source synchronous clock is disclosed. The apparatus includes: channel receivers for receiving a source synchronous channel; divider for dividing the source synchronous clock to a low frequency clock; selectors for selecting one of the divided source synchronous clock and a system clock as a reference clock; detectors for generating a phase difference signal; phase difference signal selectors for selecting a phase difference signal from the detectors and a phase difference signal from an internal logic; and voltage oscillators for transmitting a clock synchronized to a source synchronous channel to the external optical transmission system by generating a predetermined synchronous frequency according to the selected phase difference signal.

摘要翻译： 公开了一种使用源同步时钟同步时钟的装置。 该装置包括：用于接收源同步信道的信道接收机; 用于将源同步时钟分频为低频时钟; 用于选择分割源同步时钟之一和系统时钟作为参考时钟的选择器; 用于产生相位差信号的检测器; 用于从检测器中选择相位差信号的相位差信号选择器和来自内部逻辑的相位差信号; 以及电压振荡器，用于通过根据所选择的相位差信号产生预定的同步频率，将与源同步信道同步的时钟发送到外部光传输系统。

公开(公告)号：US07471898B2

公开(公告)日：2008-12-30

申请号：US10836185

申请日：2004-04-29

申请人： Jong-Yoon Shin ,  Ji-Sung Jung ,  Yool Kwon ,  Je-Soo Ko

发明人： Jong-Yoon Shin ,  Ji-Sung Jung ,  Yool Kwon ,  Je-Soo Ko

IPC分类号： H04B10/08

CPC分类号： H04B10/0775 ,  H04B2210/072

摘要： Disclosed is a device and method for optical supervisory channel framing in an optical transport network system including at least one of an optical transmission section, an optical multiplex section, and an optical channel section. A maintenance signal is generated according to a first LOS (Loss OF Signal) signal generated from at least one of the optical transmission section, the optical multiplex section, and the optical channel section. The maintenance signal and a frame-related channel such as a message communication channel are multiplexed to generate an optical supervisory channel frame. The optical supervisory channel frame is output to another device including a repeater and a terminal system through a single supervisory channel.

摘要翻译： 公开了一种光传输网络系统中的光监控信道成帧的装置和方法，包括光传输部分，光复用部分和光信道部分中的至少一个。 根据从光传输部分，光复用部分和光通道部分中的至少一个产生的第一LOS（Loss Of Signal）信号产生维护信号。 维护信号和诸如消息通信信道的帧相关信道被多路复用以产生光监控信道帧。 光监控信道帧通过单个监控信道输出到包括中继器和终端系统的另一设备。

公开(公告)号：US20060233555A1

公开(公告)日：2006-10-19

申请号：US11294119

申请日：2005-12-05

申请人： Jae-Myoung Lee ,  Je-Soo Ko

发明人： Jae-Myoung Lee ,  Je-Soo Ko

IPC分类号： H04B10/00

CPC分类号： H04L7/0075

摘要： Provided is an apparatus for an optical clock extraction, which is capable of providing high optical amplification rate and more efficient noise cancellation by using a Fabry-Perot (FP) filter and an optical amplifier. In the apparatus, an optical circulator changes a direction of an inputted optical signal. The FP filter extracts different frequency components existing on a spectrum of the inputted optical signal and being spaced apart by a clock frequency, removes noise from a reflected and amplified optical signal, and transmits the resulting signal to the optical circulator. An optical amplifier performs a primary amplification to equalize two different frequency components outputted from the filter, and performs a secondary amplification on an optical signal reflected and fed back thereto. A reflector reflects the primarily-amplified optical signal to the optical amplifier.

公开(公告)号：US20050135722A1

公开(公告)日：2005-06-23

申请号：US10971979

申请日：2004-10-22

申请人： Ki-Ho Han ,  Wangjoo Lee ,  Je-Soo Ko

发明人： Ki-Ho Han ,  Wangjoo Lee ,  Je-Soo Ko

IPC分类号： H04B10/00 ,  G02B6/34 ,  G02B6/26

CPC分类号： G02B6/4215 ,  G02B6/2713 ,  G02B6/278

摘要： An apparatus for compensating a polarization mode dispersion including a polarization adjusting means for adjusting polarization states of an optical beam having a differential group delay based on a polarization adjusting feedback control signal; a polarization beam splitting means for splitting principal states of polarization of the adjusted optical beam into a first polarization and a second polarization; a time delaying means for the first polarization based on a time delay feedback control signal; a polarization adjustment controlling means for controlling the polarization adjusting means based on a polarization adjusting feedback control signal; a time delay controlling means for controlling the time delaying means based on a time delay controlling feedback signal; and an electric combining means for combining a time-compensated first polarization and the second polarization transmitted through the optical tap.

摘要翻译： 一种用于补偿偏振模色散的装置，包括：偏振调节装置，用于基于偏振调节反馈控制信号调整具有差分组延迟的光束的偏振状态; 偏振光束分离装置，用于将经调整的光束的主要偏振光分解为第一偏振和第二偏振; 基于时间延迟反馈控制信号的第一极化的时间延迟装置; 极化调整控制装置，用于基于偏振调节反馈控制信号控制偏振调节装置; 时间延迟控制装置，用于基于时间延迟控制反馈信号控制时间延迟装置; 以及用于组合经时间补偿的第一偏振和通过光学抽头传输的第二偏振的电合成装置。