公开(公告)号：US07324713B2

公开(公告)日：2008-01-29

申请号：US11143492

申请日：2005-06-03

Applicant: Youn Seon Jang ,  Kwangjoon Kim

Inventor： Youn Seon Jang ,  Kwangjoon Kim

IPC: G02F1/225 ,  H04B10/08 ,  G02B26/00

CPC classification number: H04B10/677

Abstract: An apparatus and method for controlling an optical interferometer are provided. The method includes setting a thermoelectric cooler (TEC) temperature of the optical interferometer to a room temperature, obtaining an optimal temperature using a difference between two output powers of the optical interferometer based on eye opening of the two output powers and applying an optimal heat voltage generating the optimal temperature to a delay adjuster of the optical interferometer, and performing dithering at the optimal temperature to stabilize the optimal heat voltage.

Abstract translation: 提供了一种用于控制光学干涉仪的装置和方法。 该方法包括将光干涉仪的热电冷却器（TEC）温度设定为室温，使用基于两个输出功率的眼睛打开的光干涉仪的两个输出功率之间的差来获得最佳温度，并施加最佳热电压 为光干涉仪的延迟调节器产生最佳温度，并在最佳温度下进行抖动以稳定最佳热电压。

公开(公告)号：US20060092988A1

公开(公告)日：2006-05-04

申请号：US11152099

申请日：2005-06-15

Applicant: Joon Lee ,  Jyung Lee ,  Kwangjoon Kim

Inventor： Joon Lee ,  Jyung Lee ,  Kwangjoon Kim

IPC: H04J3/02

CPC classification number: H04J14/02 ,  H04J3/062 ,  H04J3/1617 ,  H04J2203/0094

Abstract: Provided is an optical transponder that receives a tributary signal such as a SDH/SONET signal, a GbE (Gigibit Ethernet) signal, and a SAN (Storage Area Network) signal in a WDM (Wavelength Division Multiplexing) transmission system and a SDH (Synchronous Digital Hierarchy)/SONET (Synchronous Optical Network) system, and more particularly, to an optical transponder having a switching function. The optical transponder having a switching function includes: a switch changing a data path of an input tributary signal from a plurality of channels (ports); an STM-64/OC-192 mapper/demapper mapping the tributary signal switched to a different data path by the switch to an STM-64/OC-192 signal or demapping the STM-64/OC-192 signal to the tributary signal; and a transmission delay time compensator compensating for a differential delay caused by a transmission route difference on an optical fiber link when the STM-64/OC-192 signal is demapped to the tributary signal.

公开(公告)号：US20050117905A1

公开(公告)日：2005-06-02

申请号：US10917095

申请日：2004-08-11

Applicant: Joon Lee ,  Seung Myong ,  Yun Cho ,  Jyung Lee ,  Kwangjoon Kim ,  Yool Kwon ,  Youn Jang ,  Moo Chu

Inventor： Joon Lee ,  Seung Myong ,  Yun Cho ,  Jyung Lee ,  Kwangjoon Kim ,  Yool Kwon ,  Youn Jang ,  Moo Chu

IPC: H04B10/02 ,  H04J3/16 ,  H04J14/02

CPC classification number: H04J3/1611 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

Abstract: An optical transponder which can be reconfigured in accordance with various types of client networks is provided. A client network interface transceiver includes a connector comprising a first connection terminal providing a unit transmitting and receiving a plurality of first clock signals, a plurality of second clock signals, and a plurality of data signals to and from the digital wrapper; a second connection terminal providing a unit transmitting and receiving a supervision/control signal and a CPU-related signal to and from the supervision/controlling unit; and a power source terminal providing a unit to which a power source is supplied. The client network interface transceiver multiplexes a client signal transmitted from the client network or demultiplexes a signal transmitted from an optical transmission network, outputs the client signal and the signal, and can be replaced through a front panel of the optical transponder line card in accordance with types of client networks.

Abstract translation: 提供了可以根据各种类型的客户端网络重新配置的光学应答器。 客户端网络接口收发器包括连接器，该连接器包括第一连接端子，该第一连接端子提供发送和接收来自数字包装器的多个第一时钟信号，多个第二时钟信号和多个数据信号的单元; 第二连接端子，提供向监控/控制单元发送和接收监视/控制信号和与CPU相关的信号的单元; 以及电源端子，其提供供电电源的单元。 客户网络接口收发器多路复用从客户端网络发送的客户端信号或解复用从光传输网络发送的信号，输出客户端信号和信号，并且可以根据光接收机线卡的前面板更换 客户端网络类型。

公开(公告)号：US08359525B2

公开(公告)日：2013-01-22

申请号：US12718495

申请日：2010-03-05

Applicant: Jong-Yoon Shin ,  Jongho Kim ,  Je Soo Ko ,  Kwangjoon Kim

Inventor： Jong-Yoon Shin ,  Jongho Kim ,  Je Soo Ko ,  Kwangjoon Kim

IPC: H03M13/00

CPC classification number: H04J3/1658 ,  H04B10/25 ,  H04B10/27 ,  H04J2203/0091 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0078 ,  H04L1/0083

Abstract: A method of transmitting data in an optical transport network is provided. The method comprises generating an optical transmission unit frame including an in-band area including a first area to which information data is allocated and a second area to which the information data is not allocated and an out-band area including parity information and transmitting the data through the optical transmission unit frame.

公开(公告)号：US20110142453A1

公开(公告)日：2011-06-16

申请号：US12951446

申请日：2010-11-22

Applicant: Jyung Chan Lee ,  Joon Ki Lee ,  Sae-Kyoung Kang ,  Kwangjoon Kim

Inventor： Jyung Chan Lee ,  Joon Ki Lee ,  Sae-Kyoung Kang ,  Kwangjoon Kim

IPC: H04B10/00

CPC classification number: H04B10/40

Abstract: An optical transceiver includes: a transmission unit configured to convert a first electrical signal into a first optical signal and transmit the converted first optical signal; a first power supply unit configured to supply power to the transmission unit; and a controller configured to control the first power supply unit, wherein the controller controls an operation of the first power supply unit according to whether or not the first electrical signal is inputted to the transmission unit.

Abstract translation: 光收发器包括：发送单元，被配置为将第一电信号转换为第一光信号并发送经转换的第一光信号; 配置为向所述传输单元供电的第一电源单元; 以及控制器，被配置为控制所述第一电源单元，其中所述控制器根据所述第一电信号是否输入到所述传输单元来控制所述第一电源单元的操作。

公开(公告)号：US20100229074A1

公开(公告)日：2010-09-09

申请号：US12718495

申请日：2010-03-05

Applicant: Jong-Yoon Shin ,  Jongho Kim ,  Je Soo Ko ,  Kwangjoon Kim

Inventor： Jong-Yoon Shin ,  Jongho Kim ,  Je Soo Ko ,  Kwangjoon Kim

IPC: H03M13/15 ,  G06F11/10 ,  H03M13/05

CPC classification number: H04J3/1658 ,  H04B10/25 ,  H04B10/27 ,  H04J2203/0091 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0078 ,  H04L1/0083

Abstract: A method of transmitting data in an optical transport network is provided. The method comprises generating an optical transmission unit frame including an in-band area including a first area to which information data is allocated and a second area to which the information data is not allocated and an out-band area including parity information and transmitting the data through the optical transmission unit frame.

Abstract translation: 提供了一种在光传输网络中传输数据的方法。 该方法包括：生成光传输单元帧，该光传输单元帧包括包括分配了信息数据的第一区域和未分配信息数据的第二区域的带内区域和包括奇偶校验信息的传输数据的带外区域 通过光传输单元框架。

公开(公告)号：US20100150575A1

公开(公告)日：2010-06-17

申请号：US12550753

申请日：2009-08-31

Applicant: Jyung Chan Lee ,  Joon Ki Lee ,  Kwangjoon Kim

Inventor： Jyung Chan Lee ,  Joon Ki Lee ,  Kwangjoon Kim

IPC: H04B10/04

CPC classification number: H04B10/50575 ,  G02F2203/20 ,  G02F2203/21

Abstract: An optical transmitter is provided which optimizes DC bias voltage input to an optical modulator employing a duo-binary modulation scheme. The optical transmitter including a signal combiner which converts an electrical signal for optical transmission into a high-speed electrical signal, and an optical modulator which receives and modulates the high-speed electrical signal from the signal combiner further includes a frequency divider to divide frequency of a sinusoidal watchdog clock signal from the signal combiner and to output the divided signal to be added to direct current (DC) bias voltage input to the optical modulator; and a bias voltage modifier to adjust the DC bias voltage by analyzing the modulated electrical signal from the optical modulator. Accordingly, it is possible to conveniently optimize the DC bias voltage with a simple design.

Abstract translation: 提供一种光发射器，其优化输入到采用二进制二进制调制方案的光调制器的DC偏置电压。 包括将光传输用电信号转换为高速电信号的信号组合器的光发送器和从信号组合器接收并调制高速电信号的光调制器还包括分频器， 来自信号组合器的正弦看门狗时钟信号，并输出被分配的信号以加到输入到光调制器的直流（DC）偏置电压; 和偏置电压调节器，通过分析来自光调制器的调制电信号来调节直流偏置电压。 因此，可以以简单的设计方便地优化DC偏置电压。

公开(公告)号：US20090116848A1

公开(公告)日：2009-05-07

申请号：US12293973

申请日：2007-02-21

Applicant: Bong-Kyu Kim ,  Heuk Park ,  Kwangjoon Kim ,  Bong-Tae Kim

Inventor： Bong-Kyu Kim ,  Heuk Park ,  Kwangjoon Kim ,  Bong-Tae Kim

IPC: H04B10/00

CPC classification number: H04L25/4904 ,  H03M5/12 ,  H04B10/2587

Abstract: An optical communication system and method using Manchester encoded signal remodulation are provided. The optical communication system includes a transmitter generating and transmitting a Manchester encoded optical signal including a first data stream, and a receiver receiving an optical signal obtained by dividing power of the Manchester encoded optical signal into two parts and modulating one of the two parts to include a second data stream, and recovering the second data stream. In two-way communication, the optical communication system and method allow one party to generate and transmit a Manchester encoded signal (i.e., a downstream signal) to the other party and allow the other party to generate an upstream signal by modulating the optical power of the downstream signal without using a light source.

Abstract translation: 提供了使用曼彻斯特编码信号再调制的光通信系统和方法。 光通信系统包括发射和发送包括第一数据流的曼彻斯特编码的光信号的发射机和接收通过将曼彻斯特编码的光信号的功率分成两部分而获得的光信号的接收机，并且调制这两部分中的一个以包括 第二数据流，并且恢复第二数据流。 在双向通信中，光通信系统和方法允许一方生成曼彻斯特编码信号（即，下行信号）并发送给另一方，并允许另一方通过调制光信号的光功率来产生上行信号 下游信号不使用光源。

公开(公告)号：US07471896B2

公开(公告)日：2008-12-30

申请号：US10903053

申请日：2004-07-30

Applicant: Yun Hee Cho ,  Joon Ki Lee ,  Seung Il Myong ,  Jyung Chan Lee ,  Kwangjoon Kim

Inventor： Yun Hee Cho ,  Joon Ki Lee ,  Seung Il Myong ,  Jyung Chan Lee ,  Kwangjoon Kim

IPC: H04B10/08

CPC classification number: H04B10/00

Abstract: Provided are an optical transponder that processes a G.709 frame that includes an overhead for operation, administration, and maintenance of an optical channel and an overhead for forward error correction, and a method of detecting and treating errors in optical-channel sublayers of the same. The method includes detecting an error signal or a maintenance signal from a G.709 frame that includes an overhead for operation, administration, and maintenance of an optical channel and an overhead for forward error correction; treating errors in a predetermined layer of a plurality of layers that requires error treatment when the error signal or the maintenance signal is detected or canceled; and investigating a reason for the errors in the predetermined layer.

Abstract translation: 提供了一种处理包括用于光信道的操作，管理和维护以及用于前向纠错的开销的开销的G.709帧的光学应答器，以及用于检测和处理光信道子层中的错误的方法 相同。 该方法包括检测来自G.709帧的误差信号或维护信号，该G.709帧包括用于操作，管理和维护光信道的开销和用于前向纠错的开销; 当检测或取消误差信号或维护信号时，处理需要错误处理的多个层的预定层中的错误; 并调查预定层错误的原因。

公开(公告)号：US20060050368A1

公开(公告)日：2006-03-09

申请号：US11010350

申请日：2004-12-14

Applicant: Hee Chung ,  Sun Chang ,  Kwangjoon Kim

Inventor： Hee Chung ,  Sun Chang ,  Kwangjoon Kim

IPC: H01S3/00

CPC classification number: H01S3/2375 ,  H01S3/06754 ,  H01S3/10007 ,  H01S3/302 ,  H01S5/1071 ,  H01S5/12 ,  H01S5/125 ,  H01S5/14 ,  H01S5/5072

Abstract: Provided is a hybrid optical amplifier using a gain-clamped semiconductor optical amplifier enabling Raman amplification. The hybrid optical amplifier comprises a spool of optical fiber used as transmission line in the optical communication, a GCSOA amplifying optical signal input via the optical fiber and generating a self-oscillation laser beam for gain-clamping through the gain medium, and a backward pumping Raman optical amplifier inducing Raman amplification by emitting the self-oscillation laser beam generated by the GCSOA into the optical fiber. Therefore, the Raman amplification can be obtained with a relatively simple structure using the GCSOA.

Abstract translation: 提供了一种使用拉曼放大器的增益钳位半导体光放大器的混合光放大器。 混合光放大器包括用作光通信中的传输线的光纤卷轴，经由光纤输入的GCSOA放大光信号，并通过增益介质产生用于增益钳位的自激振荡激光束，以及反向泵浦 拉曼光放大器通过将由GCSOA产生的自激振荡激光束发射到光纤中来诱导拉曼放大。 因此，使用GCSOA可以通过相对简单的结构获得拉曼放大。