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1. 发明授权

US08755696B2 Method and apparatus for controlling an optical receiver having delay paths 失效
标题翻译：用于控制具有延迟路径的光接收机的方法和装置
公开(公告)号：US08755696B2
公开(公告)日：2014-06-17
申请号：US13483599
申请日：2012-05-30
申请人： Jyung-Chan Lee
发明人： Jyung-Chan Lee
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： A control apparatus for controlling an optical receiver having delay paths comprises an optical variable attenuator configured to generate a variable signal and provide the variable signal to the optical receiver; a fine control voltage controller configured to generate a variable fine control voltage and input the variable fine control voltage to one path of the delay paths of the optical receiver; a photo-diode voltage monitor configured to detect a first voltage value and a second voltage value; a bit error rate (BER) checker configured to estimate a bit error rate (BER) according to a signal output from the optical receiver; and a controller configured to set a value of the variable signal and a value of the variable fine control voltage and to estimate the fine control voltage that makes the bit error rate a minimum according to the first voltage value and the second voltage value.
摘要翻译：一种用于控制具有延迟路径的光接收机的控制装置，包括：光学可变衰减器，被配置为产生可变信号，并向光接收机提供可变信号; 精细控制电压控制器，被配置为产生可变精细控制电压，并将可变精细控制电压输入到光接收机的延迟路径的一个路径; 光电二极管电压监视器，被配置为检测第一电压值和第二电压值; 配置为根据从光接收器输出的信号来估计误码率（BER）的误码率（BER）检验器; 以及控制器，被配置为设置可变信号的值和可变精细控制电压的值，并且根据第一电压值和第二电压值来估计使误码率最小的精细控制电压。

2. 发明授权

US08355612B2 Active alignment method for multi-channel optical transmitter and receiver, which has an optical signal generator with an optical multiplexer, which has an optical signal generator with an optical multiplexer 有权
标题翻译：具有光信号发生器和多路复用器的多通道光发射机和接收机的主动对准方法，具有光信号发生器和光复用器
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。

3. 发明申请

US20110026123A1 WAVELENGTH-DIVISION APPARATUS AND WAVELENGTH COMBINING APPARATUS 审中-公开
标题翻译：波长分配装置和波长组合装置
公开(公告)号：US20110026123A1
公开(公告)日：2011-02-03
申请号：US12773129
申请日：2010-05-04
申请人： Joon-ki LEE , Sae-kyoung KANG , Jyung-chan LEE , Kwang-joon KIM
发明人： Joon-ki LEE , Sae-kyoung KANG , Jyung-chan LEE , Kwang-joon KIM
IPC分类号： G02B5/28
CPC分类号： G02B27/145 , G02B27/1006
摘要： A wavelength-division apparatus and a wavelength combining apparatus are provided. Each of the wavelength-division apparatus and the wavelength combining apparatus includes a transparent block having one surface which is coated with an anti-reflective coating layer and the other surface which is coated with a partial transmitting coating layer. Each of the anti-reflective coating layer and the partial transmitting coating layer is coupled to a plurality of wavelength-selective filters that separate optical signals of different wavelengths through different paths other than a transmission path or a receiving path. Thus, the optical signals of the respective wavelengths output through the different paths can be used for various purposes such as monitoring the signal intensity and/or the signal quality.
摘要翻译：提供了一种波分分割装置和波长组合装置。波分分割装置和波长组合装置中的每一个包括具有一个表面的透明块，该表面涂覆有抗反射涂层，另一个表面涂覆有部分透射涂层。抗反射涂层和部分透射涂层中的每一个耦合到多个波长选择滤光器，其通过除传输路径或接收路径之外的不同路径分离不同波长的光信号。因此，通过不同路径输出的各个波长的光信号可以用于各种目的，例如监视信号强度和/或信号质量。

4. 发明申请

US20080107431A1 METHOD AND APPARATUS FOR CONTROLLING WAVELENGTH TUNING OF OPTICAL SOURCE FOR OPTICAL COMMUNICATION 有权
标题翻译：用于控制光通信的光源波长调谐的方法和装置
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。

5. 发明申请

US20080107423A1 OPTICAL TRANSCEIVER AND METHOD OF CONTROLLING OPTICAL OUTPUT JITTER USING THE SAME 有权
标题翻译：光收发器及使用该光控制器的光输出抖动器的控制方法
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。

6. 发明授权

US07167493B2 Method for automatically revising wavelength of electro-absorption modulator integrated laser diode 失效
标题翻译：自动修正电吸收式调制器集成激光二极管波长的方法
公开(公告)号：US07167493B2
公开(公告)日：2007-01-23
申请号：US10897362
申请日：2004-07-21
申请人： Jyung-Chan Lee , Joon-Ki Lee , Yun-Hee Cho , Seung-Il Myong , Youn-Seon Jang , Yool Kwon , Kwangjoon Kim , Moo-Jung Chu
发明人： Jyung-Chan Lee , Joon-Ki Lee , Yun-Hee Cho , Seung-Il Myong , Youn-Seon Jang , Yool Kwon , Kwangjoon Kim , Moo-Jung Chu
IPC分类号： H01S3/00 , H01S3/04 , H01S3/10 , H01S3/13 , H01S3/14
CPC分类号： H01S5/06804 , H01S5/02415 , H01S5/0265 , H01S5/042
摘要： The present invention relates to a method for revising a wavelength of the EML by controlling a working temperature based on arithmetic functional relations between the DC-Offset voltage and the wavelength and between the working temperature and the wavelength, and a computer-readable recording medium thereof. The method includes the steps of: re-setting initial values of a working temperature, a amplifying voltage and the DC-Offset voltage; determining a wavelength with respect to the re-set DC-Offset voltage based on a functional relation between the DC-Offset voltage and the wavelength of the EML; and determining the revising working temperature for the determined wavelength based on the functional relation between the working temperature and the wavelength of the EML, and re-setting the working temperature with the revising working temperature.
摘要翻译：本发明涉及一种通过基于DC偏移电压与波长之间以及工作温度和波长之间的算术函数关系来控制工作温度来修改EML的波长的方法及其计算机可读记录介质。该方法包括以下步骤：重新设定工作温度，放大电压和DC偏移电压的初始值; 基于所述DC偏移电压和所述EML的波长之间的函数关系来确定相对于所述重新设定的DC偏移电压的波长; 并根据工作温度和EML波长之间的功能关系确定确定波长的修正工作温度，并根据修改工作温度重新设定工作温度。

7. 发明授权

US06606190B2 Inhomogeneity tunable erbium-doped fiber amplifier with long wavelength gain band and method of blocking propagation of backward amplified spontaneous light emission in the same 有权
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.

8. 发明授权

US08565620B2 Apparatus for receiving optical signal and method of controlling phase offset for differential quadrature phase shift keying 有权
标题翻译：用于接收光信号的装置和用于差分正交相移键控的相位偏移控制方法
公开(公告)号：US08565620B2
公开(公告)日：2013-10-22
申请号：US12912870
申请日：2010-10-27
申请人： Hwan-Seok Chung , Sun-Hyok Chang , Jyung-Chan Lee , Kwang-Joon Kim
发明人： Hwan-Seok Chung , Sun-Hyok Chang , Jyung-Chan Lee , Kwang-Joon Kim
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： An apparatus for receiving optical signals in DQPSK and method of controlling a phase offset in receiving optical signals for DQPSK is provided. An original optical signal modulated in DQPSK is received. The original optical signal is delayed by one bit to make a delay optical signal such that an interference on the original optical signal and the delay optical signal is performed. A control signal is generated by use of an interference result between the original optical signal and the delay optical signal. A phase offset for the interference between the original optical signal and the delay optical signal is controlled by use of the generated control signal. In receiving optical signals, the phase offset between the delay optical signal and the original optical signal is precisely controlled, thereby optimizing the transfer characteristics of an optical delay interferometer.
摘要翻译：提供一种用于接收DQPSK中的光信号的装置以及控制接收用于DQPSK的光信号的相位偏移的方法。接收以DQPSK调制的原始光信号。原始光信号被延迟一位以产生延迟光信号，使得对原始光信号和延迟光信号的干扰被执行。通过使用原始光信号和延迟光信号之间的干扰结果来产生控制信号。通过使用所生成的控制信号来控制原始光信号与延迟光信号之间的干扰的相位偏移。在接收光信号时，精确控制延迟光信号与原始光信号之间的相位偏移，从而优化光延迟干涉仪的传输特性。

9. 发明授权

US08014680B2 Optical transceiver and method of controlling optical output jitter using the same 有权
标题翻译：光收发器和使用其控制光输出抖动的方法
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。

10. 发明申请

US20090016719A1 OPTICAL TRANSPONDER INTERFACING MULTIPROTOCOL SIGNAL AND METHOD OF INTERFACING MULTIPROTOCOL SIGNAL 审中-公开
标题翻译：光学传输器接口多媒体信号和接口多媒体信号的方法
公开(公告)号：US20090016719A1
公开(公告)日：2009-01-15
申请号：US12171586
申请日：2008-07-11
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： H04J11/00
CPC分类号： H04J3/0685 , H04J3/1611 , H04J3/1652
摘要： Provided are an optical transponder that interfaces a multiprotocol signal and a method of interfacing a multiprotocol signal. The optical transponder includes: an optical transceiver, which optical/electrical converts and multiplexes/demultiplexes an input signal; a reception clock generator, which generates a clock on a reception path; a transmission clock generator, which generates a clock on a transmission path; an optical transport hierarchy (OTH) framer, which processes an OTH signal when the input signal is the OTH signal; a synchronous digital hierarchy (SDH)/synchronous optical network (SONET) framer, which processes an SDH/SONET signal or a gigabit Ethernet (GbE) when the input signal is the SDH/SONET signal or the GbE signal; and a controller which controls the optical transceiver, the reception clock generator, the transmission clock generator, the OTH framer, and the SDH/SONET framer according to the type of the input signal. Accordingly, one optical transponder can receive various types of protocol signals, and thus different optical transponders are not separately required according to a type of a connected signal.
摘要翻译：提供了一种光接收器，其将多协议信号和多协议信号接口的方法相连接。光转发器包括：光收发器，其对输入信号进行光/电转换和解复用; 接收时钟发生器，其在接收路径上产生时钟; 传输时钟发生器，其在传输路径上产生时钟; 光传输层次（OTH）成帧器，当输入信号为OTH信号时处理OTH信号; 同步数字层级（SDH）/同步光网络（SONET）成帧器，当输入信号是SDH / SONET信号或GbE信号时处理SDH / SONET信号或千兆以太网（GbE）; 以及根据输入信号的类型控制光收发器，接收时钟发生器，传输时钟发生器，OTH成帧器和SDH / SONET成帧器的控制器。因此，一个光学应答器可以接收各种类型的协议信号，因此根据连接的信号的类型，不需要单独地需要不同的光转发器。

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