公开(公告)号：US08355612B2

公开(公告)日：2013-01-15

申请号：US12543852

申请日：2009-08-19

申请人： Sae Kyoung Kang ,  Joon Ki Lee ,  Jyung Chan Lee ,  Kwang Joon Kim

发明人： Sae Kyoung Kang ,  Joon Ki Lee ,  Jyung Chan Lee ,  Kwang Joon Kim

IPC分类号： G02B6/42 ,  H04J14/02

CPC分类号： G02B6/4215 ,  G02B6/4212 ,  G02B6/4226

摘要： An active alignment method for a multi-channel optical transmitter and receiver is disclosed. The active alignment method for a multi-channel optical transmitter includes actively aligning an optical signal generator with an optical multiplexer based on optical outputs of a plurality of wavelengths from the optical signal generator and an optical output of the optical multiplexer, and actively aligning the optical multiplexer with a fiber optic coupler based on an optical output of the optical multiplexer and an optical output of the fiber optic coupler.

摘要翻译： 公开了一种用于多通道光发射机和接收机的主动对准方法。 用于多通道光发射机的主动对准方法包括基于来自光信号发生器的多个波长的光输出和光复用器的光输出，主动地将光信号发生器与光复用器对准，并且主动对准光学 多路复用器，其具有基于光复用器的光输出的光纤耦合器和光纤耦合器的光输出。

公开(公告)号：US07313333B2

公开(公告)日：2007-12-25

申请号：US10815064

申请日：2004-03-31

申请人： Jyung Chan Lee ,  Seung Il Myong ,  Joon Ki Lee ,  Kwang Joon Kim

发明人： Jyung Chan Lee ,  Seung Il Myong ,  Joon Ki Lee ,  Kwang Joon Kim

IPC分类号： H04B10/06

CPC分类号： H04B10/695

摘要： Disclosed herein is an apparatus for controlling a decision threshold voltage to an optical receiver, which is capable of automatically controlling the decision threshold voltage to the optical receiver appropriately to signal level decision on the basis of a low-frequency band signal component of an output signal from the optical receiver. The apparatus is adapted to control the level of the decision threshold voltage to the optical receiver, which converts an input optical signal into an electrical signal. To this end, the apparatus comprises a voltage detector for branching off part of the output signal from the optical receiver and detecting a corresponding voltage, a differential comparator for comparing the voltage detected by the voltage detector with a reference voltage inputted thereto and outputting the resulting differential voltage, a low pass filter for filtering the differential voltage from the differential comparator at a predetermined low frequency band and supplying the resulting voltage as the threshold voltage to the optical receiver, and a voltage controller for controlling the reference voltage to the differential comparator on the basis of a differential voltage between the threshold voltage from the low pass filter and a predetermined voltage corresponding to a predetermined minimum bit error rate.

摘要翻译： 本文公开了一种用于控制光接收机的判定阈值电压的装置，其能够基于输出信号的低频带信号分量自动控制对光接收器的判定阈值电压以适当地进行信号电平判定 从光接收机。 该装置适于控制光接收器的判定阈值电平的电平，光接收器将输入光信号转换为电信号。 为此，该装置包括用于将来自光接收器的输出信号的一部分分支并检测相应电压的电压检测器，用于将由电压检测器检测到的电压与输入到其的参考电压进行比较的差分比较器， 差分电压，低通滤波器，用于在预定的低频带对差分比较器的差分电压进行滤波，并将得到的电压作为阈值电压提供给光接收器;以及电压控制器，用于控制差分比较器的参考电压 来自低通滤波器的阈值电压与对应于预定最小误码率的预定电压之间的差分电压的基础。

公开(公告)号：US20100290739A1

公开(公告)日：2010-11-18

申请号：US12543852

申请日：2009-08-19

申请人： Sae Kyoung KANG ,  Joon Ki Lee ,  Jyung Chan Lee ,  Kwang Joon Kim

发明人： Sae Kyoung KANG ,  Joon Ki Lee ,  Jyung Chan Lee ,  Kwang Joon Kim

IPC分类号： G02B6/42 ,  H04J14/02

CPC分类号： G02B6/4215 ,  G02B6/4212 ,  G02B6/4226

摘要： An active alignment method for a multi-channel optical transmitter and receiver is disclosed. The active alignment method for a multi-channel optical transmitter includes actively aligning an optical signal generator with an optical multiplexer based on optical outputs of a plurality of wavelengths from the optical signal generator and an optical output of the optical multiplexer, and actively aligning the optical multiplexer with a fiber optic coupler based on an optical output of the optical multiplexer and an optical output of the fiber optic coupler.

摘要翻译： 公开了一种用于多通道光发射机和接收机的主动对准方法。 用于多通道光发射机的主动对准方法包括基于来自光信号发生器的多个波长的光输出和光复用器的光输出，主动地将光信号发生器与光复用器对准，并且主动对准光学 多路复用器，其具有基于光复用器的光输出的光纤耦合器和光纤耦合器的光输出。

公开(公告)号：US07076165B2

公开(公告)日：2006-07-11

申请号：US10195913

申请日：2002-07-15

申请人： Seung II Myoung ,  Hyun Jae Lee ,  Yun Hee Cho ,  Jyung Chan Lee

发明人： Seung II Myoung ,  Hyun Jae Lee ,  Yun Hee Cho ,  Jyung Chan Lee

IPC分类号： H04B10/08

CPC分类号： H04J3/08 ,  H04B10/00 ,  H04J14/0201

摘要： The present invention provides an optical transponder with an add/drop operation function of optical channels, which combines operating functions of adding and dropping type optical transponders in accordance with mounting of a digital wrapper to simultaneously process two optical channels. The optical transponder receives an optical signal, converts the optical signal into electrical signal, adds maintenance information, monitoring information, and error correction information to each of the converted signals, and detects the maintenance information, monitoring information, and errors contained in each of the signals. Furthermore The optical transponder corrects the detected errors, and transmits the signals having the maintenance information, monitoring information, and error correction information and the signals of which errors are corrected.

摘要翻译： 本发明提供一种具有光通道的分插操作功能的光转发器，其根据数字包装器的安装来组合添加和丢弃型光转发器的操作功能，以同时处理两个光通道。 光转发器接收光信号，将光信号转换为电信号，将维护信息，监视信息和纠错信息添加到每个转换信号，并检测维护信息，监视信息和每个 信号。 此外，光发送应答器校正检测到的错误，并发送具有维护信息，监视信息和纠错信息的信号以及纠错错误的信号。

公开(公告)号：US20080107431A1

公开(公告)日：2008-05-08

申请号：US11871357

申请日：2007-10-12

申请人： Jyung Chan Lee ,  Moo Jung Chu ,  Kwang Joon Kim ,  Jun Ki Lee

发明人： Jyung Chan Lee ,  Moo Jung Chu ,  Kwang Joon Kim ,  Jun Ki Lee

IPC分类号： H04B10/04

CPC分类号： H04B10/572 ,  H01S5/0612 ,  H01S5/0683 ,  H01S5/0687

摘要： A method and apparatus for controlling a wavelength tuning of an optical source in an optical communication system. An operating temperature of an optical source is controlled and monitored to shorten a wavelength tuning time of the optical source generated in an optical source generator. When the current operating temperature reaches a final target temperature, an operating current is supplied to the optical source generator, and transmission of the operating current to the optical source generator is controlled and monitored. When the operating current reaches a final operating current, the wavelength tuning of the optical source is terminated. The operating temperature is adjusted by distinguishing between a smaller amount of temperature change and a larger amount of temperature change to prevent oscillation at the point of reaching the final target temperature, thereby minimizing the time taken for the output wavelength tuning.

摘要翻译： 一种用于控制光通信系统中的光源的波长调谐的方法和装置。 控制和监视光源的工作温度，以缩短在光源发生器中产生的光源的波长调谐时间。 当当前工作温度达到最终目标温度时，向光源发生器提供工作电流，并且控制和监视对光源发生器的工作电流的传输。 当工作电流达到最终工作电流时，光源的波长调谐终止。 通过区分较小量的温度变化和较大的温度变化量来调节工作温度，以防止在达到最终目标温度的时刻发生振荡，由此最小化输出波长调谐所需的时间。

公开(公告)号：US06606190B2

公开(公告)日：2003-08-12

申请号：US09997421

申请日：2001-11-28

申请人： Jyung Chan Lee ,  Moo Jung Chu ,  Kwang Joon Kim ,  Jong Hyun Lee

发明人： Jyung Chan Lee ,  Moo Jung Chu ,  Kwang Joon Kim ,  Jong Hyun Lee

IPC分类号： H04B1012

CPC分类号： H01S3/06758

摘要： Disclosed herein is an inhomogeneity tunable erbium-doped optical fiber amplifier with a long wavelength band and method of blocking a backward amplified spontaneous light emission in the same. The optical fiber amplifier includes a control device situated between a first amplification stage and a second amplification stage for controlling an isolation rate of a backward amplified spontaneous light emission being propagated from a second amplification stage to the first amplification stage. The method blocks a backward amplified spontaneous light emission in a two-stage inhomogeneity tunable erbium-doped optical fiber amplifier with a long wavelength gain band, in which the backward amplified spontaneous light emission being propagated from a second amplification stage to a first amplification stage is blocked, and an isolation rate of the backward amplified spontaneous light emission is controlled according to the intensity of an optical signal inputted to the first amplification stage.

公开(公告)号：US07075694B2

公开(公告)日：2006-07-11

申请号：US10863741

申请日：2004-06-07

申请人： Youn Seon Jang ,  Kwang Joon Kim ,  Jyung Chan Lee ,  Seung Il Myong

发明人： Youn Seon Jang ,  Kwang Joon Kim ,  Jyung Chan Lee ,  Seung Il Myong

IPC分类号： G02B26/00

CPC分类号： H04B10/50595 ,  G02F1/0123 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/50575 ,  H04B10/508 ,  H04B10/5162 ,  H04B10/5165 ,  H04B2210/003

摘要： The present invention relates to an apparatus and method for automatically correcting a bias voltage for a carrier suppressed pulse generating modulator using the phase distribution of the output pulses, which automatically detects an optimal bias voltage for the carrier suppressed pulse generating modulator and stabilizes the bias voltage.In the bias voltage automatic correction method and apparatus of the present invention, an optimal bias voltage for the modulator is set to a bias voltage that is obtained when mean power of an optical signal output from the modulator is highest. The varying direction of the bias voltage is detected on the basis of the phase variations in the output optical signal of the modulator according to the bias voltage variations is detected, and the bias voltage is corrected oppositely to the varying direction of the bias voltage.

摘要翻译： 本发明涉及一种使用输出脉冲的相位分布自动校正载波抑制脉冲发生调制器的偏置电压的装置和方法，其自动检测载波抑制脉冲发生调制器的最佳偏置电压并稳定偏置电压 。 在本发明的偏置电压自动校正方法和装置中，将调制器的最佳偏置电压设置为当从调制器输出的光信号的平均功率最高时获得的偏置电压。 根据检测到的偏置电压变化，基于调制器的输出光信号的相位变化来检测偏置电压的变化方向，并且偏置电压与偏置电压的变化方向相反地校正。

公开(公告)号：US07049902B2

公开(公告)日：2006-05-23

申请号：US10858925

申请日：2004-06-01

申请人： Seung Il Myong ,  Kwang Joon Kim ,  Jyung Chan Lee ,  Sang Kyu Lim

发明人： Seung Il Myong ,  Kwang Joon Kim ,  Jyung Chan Lee ,  Sang Kyu Lim

IPC分类号： H03H7/01 ,  H03J3/00 ,  H03J7/02

CPC分类号： H03H7/12

摘要： A tunable high-order Bessel low pass filter which is applied to a multi-rate duobinary generation system of an optical communication system. The tunable Bessel low pass filter comprises a variable inductor circuit including a plurality of variable inductors connected in series between an input signal terminal and an output signal terminal and controlled respectively by corresponding inductance control signals, a variable capacitor circuit including a plurality of variable capacitors connected respectively between corresponding connection nodes of the plurality of variable inductors of the variable inductor circuit and a ground terminal and controlled respectively by corresponding capacitance control signals, and a variable capacitor/inductor controller for outputting the corresponding capacitance control signals to the variable capacitors of the variable capacitor circuit and the corresponding inductance control signals to the variable inductors of the variable inductor circuit on the basis of preset values according to a given data rate, respectively. When the data rate of an application system is changed, the tunable Bessel low pass filter controls its filtering characteristics most appropriately to the changed data rate, so as to extend its application range and enhance performance and efficiency of the application system.

摘要翻译： 一种可调谐的高阶贝塞尔低通滤波器，适用于光通信系统的多速率二进制生成系统。 可调谐贝塞尔低通滤波器包括可变电感器电路，其包括串联连接在输入信号端子和输出信号端子之间的多个可变电感器，分别由相应的电感控制信号控制，可变电容器电路包括多个连接的可变电容器 分别在可变电感器电路的多个可变电感器的相应连接节点和接地端子之间分别由相应的电容控制信号控制;以及可变电容器/电感器控制器，用于将相应的电容控制信号输出到变量的可变电容器 电容器电路和相应的电感控制信号分别根据给定的数据速率在可变电感器的可变电感器的基础上进行预设值。 当应用系统的数据速率发生变化时，可调式贝塞尔低通滤波器最适合改变数据速率控制其滤波特性，从而扩展其应用范围，提高应用系统的性能和效率。

公开(公告)号：US20070134961A1

公开(公告)日：2007-06-14

申请号：US11635695

申请日：2006-12-07

申请人： Seung Myong ,  Jyung Chan Lee ,  Jong Hyun Lee

发明人： Seung Myong ,  Jyung Chan Lee ,  Jong Hyun Lee

IPC分类号： H01R13/62

CPC分类号： H04L7/0008 ,  H04J3/0685

摘要： Provided are an apparatus and a method for interfacing a 10 Gbps small form factor pluggable (XFP) optical transceiver with a 300-pin multi-source agreement (MSA)_optical transceiver. The apparatus includes: a direct interface providing direct interfacing paths through which signals that can be directly interfaced with one another between the XFP optical transceiver and the 300-pin MSA optical transponder; and a processor converting clock signals and data between the XFP optical transceiver and the 300-pin MSA optical transponder so that formats of the clock signals and the data coincide with one another.

摘要翻译： 提供了一种用于将10 Gbps小型可插拔（XFP）光收发器与300引脚多源协议（MSA）_光学收发器进行接口的设备和方法。 该装置包括：提供直接接口路径的直接接口，可在XFP光收发器和300-pin MSA光转发器之间彼此直接接口的信号通过该路径; 以及处理器在XFP光收发器和300针MSA光转发器之间转换时钟信号和数据，使得时钟信号和数据的格式彼此一致。

公开(公告)号：US07917040B2

公开(公告)日：2011-03-29

申请号：US11871357

申请日：2007-10-12

申请人： Jyung Chan Lee ,  Moo Jung Chu ,  Kwang Joon Kim ,  Jun Ki Lee

发明人： Jyung Chan Lee ,  Moo Jung Chu ,  Kwang Joon Kim ,  Jun Ki Lee

IPC分类号： H04B10/04

CPC分类号： H04B10/572 ,  H01S5/0612 ,  H01S5/0683 ,  H01S5/0687

摘要： A method and apparatus for controlling a wavelength tuning of an optical source in an optical communication system. An operating temperature of an optical source is controlled and monitored to shorten a wavelength tuning time of the optical source generated in an optical source generator. When the current operating temperature reaches a final target temperature, an operating current is supplied to the optical source generator, and transmission of the operating current to the optical source generator is controlled and monitored. When the operating current reaches a final operating current, the wavelength tuning of the optical source is terminated. The operating temperature is adjusted by distinguishing between a smaller amount of temperature change and a larger amount of temperature change to prevent oscillation at the point of reaching the final target temperature, thereby minimizing the time taken for the output wavelength tuning.

摘要翻译： 一种用于控制光通信系统中的光源的波长调谐的方法和装置。 控制和监视光源的工作温度，以缩短在光源发生器中产生的光源的波长调谐时间。 当当前工作温度达到最终目标温度时，向光源发生器提供工作电流，并且控制和监视对光源发生器的工作电流的传输。 当工作电流达到最终工作电流时，光源的波长调谐终止。 通过区分较小量的温度变化和较大的温度变化量来调节工作温度，以防止在达到最终目标温度的时刻发生振荡，由此最小化输出波长调谐所需的时间。