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：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：US06650467B2

公开(公告)日：2003-11-18

申请号：US10112796

申请日：2002-03-28

申请人： Jyung Chan Lee ,  Jong Hyun Lee ,  Moo Jung Chu ,  Hee Sang Chung

发明人： Jyung Chan Lee ,  Jong Hyun Lee ,  Moo Jung Chu ,  Hee Sang Chung

IPC分类号： H01S300

CPC分类号： H01S3/06758 ,  H01S3/094011 ,  H01S2301/04

摘要： Disclosed herein is an Erbium-Doped Fiber Amplifier (EDFA) used in a WDM (Wavelength Division Multiplexing) transmission system. In accordance with the present invention, a variation of the intensity of the output optical signal in the optical fiber amplifier, which results from an gain imbalance due to different wavelength distribution caused by the gain inhomogeneity characteristics, can be prevented by examining the laser diode sensitive to the gain inhomogeneity characteristics in the erbium-doped optical fiber amplifier, constructing the filter having spectrum characteristics capable of suppressing the gain imbalance of the optical signal outputted from the optical fiber amplifier, and driving the sensitive laser diode using the electrical signal obtained by branching some of the input optical signal and passing the branched optical signal through the filter and driving other laser diodes with a constant voltage value.

摘要翻译： 本文公开了在WDM（波分复用）​​传输系统中使用的掺铒光纤放大器（EDFA）。 根据本发明，可以通过检查激光二极管敏感性来防止由于由增益不均匀性特性引起的由不同波长分布引起的增益不平衡导致的光纤放大器中输出光信号的强度变化 对于铒掺杂光纤放大器的增益不均匀性特性，构成具有能够抑制从光纤放大器输出的光信号的增益不平衡的频谱特性的滤波器，并使用通过分支获得的电信号来驱动敏感激光二极管 一些输入光信号，并使分支光信号通过滤波器，并以恒定电压值驱动其他激光二极管。

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：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：US20080107423A1

公开(公告)日：2008-05-08

申请号：US11935191

申请日：2007-11-05

申请人： Joon Ki LEE ,  Jyung Chan Lee ,  Kwangjoon Kim

发明人： Joon Ki LEE ,  Jyung Chan Lee ,  Kwangjoon Kim

IPC分类号： H04B10/00

CPC分类号： H04B10/40 ,  H04L25/03343

摘要： An optical transceiver which can effectively reduce optical output jitter when an error is made during designing and manufacturing of a printed circuit board (PCB), and a method of controlling optical output jitter using the optical transceiver are provided. The optical transceiver includes a transmitter unit including an equalizing (EQ) filter which can reduce jitter of a high speed electric signal; a control circuit which controls the EQ filter; a receiver unit which receives an optical signal; and a micro-controller which controls the transmitter unit and the receiver unit. Further included in the optical transceiver is an active type or passive type EQ filter and, in the case of the active type, the control circuit is used to control the filter, in order to compensate for high-frequency component of a high speed electric signal in the transmitter unit in order to reduce reflection or loss on the PCB, and thus deterministic optical output jitter occurring due to Inter-Symbol Interference (ISI) can be reduced.

摘要翻译： 提供了在印刷电路板（PCB）的设计和制造期间发生错误时有效降低光输出抖动的光收发器，以及使用该光收发器控制光输出抖动的方法。 光收发器包括一个发射单元，它包括均衡（EQ）滤波器，可以减少高速电信号的抖动; 控制EQ滤波器的控制电路; 接收单元，其接收光信号; 以及控制发射机单元和接收机单元的微控制器。 在光收发器中还包括有源型或无源型EQ滤波器，并且在有源类型的情况下，控制电路用于控制滤波器，以便补偿高速电信号的高频分量 在发射机单元中以减少PCB上的反射或损耗，因此可以减少由于符号间干扰（ISI）引起的确定性的光输出抖动。

公开(公告)号：US07440700B2

公开(公告)日：2008-10-21

申请号：US11134202

申请日：2005-05-20

申请人： Jyung Chan Lee ,  Joon Ki Lee ,  Hyun Jae Lee ,  Kwangjoon Kim

发明人： Jyung Chan Lee ,  Joon Ki Lee ,  Hyun Jae Lee ,  Kwangjoon Kim

IPC分类号： H04B10/00

CPC分类号： G01M11/00

摘要： Provided is an apparatus for testing the performance of an optical transceiver by referencing various performance clocks provided by an OTU2 signal connection transceiver and an STM-64/OC-192 signal. The apparatus for testing performance of an optical transceiver includes: a transmitter/receiver reference clock selector for selecting one of various transmitter/receiver reference clocks provided by an STM-64/OC-192 connection optical transceiver or an OTN connection optical transceiver; a transmitter test reference clock selection switch for selecting a receiver data synchronous clock provided by the transceivers or the selected transmitter/receiver reference clock as a transmitter test reference clock; and a receiver test reference clock selection switch for selecting a transmitter supervisory clock provided by the transceivers or the selected transmitter/receiver reference clock as a receiver test reference clock.

摘要翻译： 提供了一种用于通过参考由OTU2信号连接收发器和STM-64 / OC-192信号提供的各种性能时钟来测试光收发器的性能的装置。 用于测试光收发器性能的装置包括：用于选择由STM-64 / OC-192连接光收发器或OTN连接光收发器提供的各种发射机/接收机参考时钟之一的发射机/接收机参考时钟选择器; 发射机测试参考时钟选择开关，用于选择由收发器或选定的发射机/接收机参考时钟提供的接收机数据同步时钟作为发射机测试参考时钟; 以及接收机测试参考时钟选择开关，用于选择由收发器或选定的发射机/接收机参考时钟提供的发射机监控时钟作为接收机测试参考时钟。

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：US08014680B2

公开(公告)日：2011-09-06

申请号：US11935191

申请日：2007-11-05

申请人： Joon Ki Lee ,  Jyung Chan Lee ,  Kwangjoon Kim

发明人： Joon Ki Lee ,  Jyung Chan Lee ,  Kwangjoon Kim

IPC分类号： H04B10/00

CPC分类号： H04B10/40 ,  H04L25/03343

摘要： An optical transceiver which can effectively reduce optical output jitter when an error is made during designing and manufacturing of a printed circuit board (PCB), and a method of controlling optical output jitter using the optical transceiver are provided. The optical transceiver includes a transmitter unit including an equalizing (EQ) filter which can reduce jitter of a high speed electric signal; a control circuit which controls the EQ filter; a receiver unit which receives an optical signal; and a micro-controller which controls the transmitter unit and the receiver unit. Further included in the optical transceiver is an active type or passive type EQ filter and, in the case of the active type, the control circuit is used to control the filter, in order to compensate for high-frequency component of a high speed electric signal in the transmitter unit in order to reduce reflection or loss on the PCB, and thus deterministic optical output jitter occurring due to Inter-Symbol Interference (ISI) can be reduced.

摘要翻译： 提供了在印刷电路板（PCB）的设计和制造期间发生错误时有效降低光输出抖动的光收发器，以及使用该光收发器控制光输出抖动的方法。 光收发器包括一个发射单元，它包括均衡（EQ）滤波器，可以减少高速电信号的抖动; 控制EQ滤波器的控制电路; 接收单元，其接收光信号; 以及控制发射机单元和接收机单元的微控制器。 在光收发器中还包括有源型或无源型EQ滤波器，并且在有源类型的情况下，控制电路用于控制滤波器，以便补偿高速电信号的高频分量 在发射机单元中以减少PCB上的反射或损耗，因此可以减少由于符号间干扰（ISI）引起的确定性的光输出抖动。