公开(公告)号：US06559989B1

公开(公告)日：2003-05-06

申请号：US09499934

申请日：2000-02-08

申请人： Kwang Joon Kim ,  Ji Wook Youn ,  Hee Sang Chung ,  Sung Un Lee ,  Jong Hyun Lee

发明人： Kwang Joon Kim ,  Ji Wook Youn ,  Hee Sang Chung ,  Sung Un Lee ,  Jong Hyun Lee

IPC分类号： H04J1408

CPC分类号： H04Q11/0005 ,  H04J14/08 ,  H04Q2011/0041

摘要： An optical packet header processing apparatus for processing a header of an optical packet expressing an address of a destination node to control a switching operation of an optical packet switch. The optical packet header processing apparatus comprises a beam splitter for splitting the optical packet header into a predetermined number of optical packet header elements, and a plurality of time interval detectors. Each of the time interval detectors receives a corresponding one of the optical packet header elements from the beam splitter and outputs a detect optical pulse if a pair of optical pulses having a predetermined time interval therebetween are present in the received optical packet header element. A plurality of optical pulse detectors are adapted to convert the detect optical pulses from the time interval detectors into electrical signals and transfer the converted electrical signals to the optical packet switch, respectively. Therefore, the optical packet switch determines the destination node in response to the electrical signals from the optical pulse detectors and outputs the optical packet to an output port corresponding to the determined destination node.

摘要翻译： 一种光分组报头处理装置，用于处理表示目的地节点的地址的光分组的报头以控制光分组交换机的切换操作。 光分组报头处理装置包括分光器，用于将光分组报头分割成预定数量的光分组报头元素，以及多个时间间隔检测器。 每个时间间隔检测器从分束器接收相应的一个光分组报头元件，并且如果在接收的光分组报头元件中存在其间具有预定时间间隔的一对光脉冲，则输出检测光脉冲。 多个光脉冲检测器适于将来自时间间隔检测器的检测光脉冲转换为电信号，并将转换后的电信号分别传送到光分组交换机。 因此，光分组交换机响应于来自光脉冲检测器的电信号来确定目的地节点，并将光分组输出到与确定的目的地节点对应的输出端口。

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：US6028301A

公开(公告)日：2000-02-22

申请号：US968250

申请日：1997-11-12

申请人： Kwang Joon Kim ,  Jong Hyun Lee

发明人： Kwang Joon Kim ,  Jong Hyun Lee

IPC分类号： G01R31/00 ,  B81B7/00 ,  B81B7/02 ,  H01J40/14

CPC分类号： G09G3/3433

摘要： The present invention discloses a method for controlling a micro electro-mechanical system manufactured using micro-machining technology and verifying the state thereof and, more particularly, to a method for controlling the micro electro-mechanical system and verifying the state thereof using light so that the voltage applied to each MEMS is determined by the intensity of the light incident on two optical windows of the symmetric SEEDs respectively by attaching the symmetric SEEDs every MEMS to electrically connect one of the SEEDs to the MEMS in parallel, instead of a conventional method in which the voltage from the control circuit is applied directly to the MEMS via wires.

摘要翻译： 本发明公开了一种使用微加工技术制造的微电子机械系统的控制方法，其特征在于，一种用于控制微机电系统的方法，并使用光来验证其状态， 施加到每个MEMS的电压由入射在对称SEED的两个光学窗口上的光的强度分别通过每个MEMS连接对称的SEED而并联，以将ESED中的一个与MEMS平行地连接，而不是常规的方法 来自控制电路的电压通过导线直接施加到MEMS。

公开(公告)号：US6097529A

公开(公告)日：2000-08-01

申请号：US137691

申请日：1998-08-21

申请人： Hyuek Jae Lee ,  Kwang Joon Kim ,  Hye Young Kim ,  Seok Youl Kang

发明人： Hyuek Jae Lee ,  Kwang Joon Kim ,  Hye Young Kim ,  Seok Youl Kang

IPC分类号： G02F1/00 ,  H04B10/299 ,  G02F1/01 ,  H04B10/04

CPC分类号： H04B10/299

摘要： An apparatus for enhancing the extinction ratio in an optical NRZ-to-RZ converting system, and an optical modulation system, are disclosed. The extinction ratio is improved by using an optical fiber loop mirror together with optical amplifiers. The apparatus for enhancing the extinction ratio includes a variable coupling means for receiving external signals to split them to respective terminals of a loop mirror. A variable optical delaying means delays the phases of the signals after their dispersion by the variable coupling means. An optical amplifying means positioned asymmetrically smaller than a bit time of an RZ signal pattern inputted slightly departed from the center of the loop mirror amplifies the optical intensity, and varies the refractive index so as to cause a phase delay. A polarization adjusting means adjusts the polarization of the optical signals, and an optical band pass filtering means removes noises from signals outputted from the loop mirror. The apparatus is used in an optical NRZ-to-RZ converting system.

摘要翻译： 公开了一种用于增强光学NRZ至RZ转换系统中的消光比的装置和光学调制系统。 通过与光放大器一起使用光纤环路镜来提高消光比。 用于增强消光比的装置包括用于接收外部信号以将其分离到环形反射镜的相应端子的可变耦合装置。 可变光延迟装置通过可变耦合装置使信号的相位在其分散之后延迟。 一个光学放大装置的位置不对称地小于从环形镜的中心稍微偏离的RZ信号图形的位时间放大光强度，并且改变折射率以引起相位延迟。 偏振调整装置调节光信号的极化，光带通滤波装置从环形反射镜输出的信号中去除噪声。 该装置用于光学NRZ至RZ转换系统。

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：US06040678A

公开(公告)日：2000-03-21

申请号：US103978

申请日：1998-06-24

申请人： Kyung Bum Huh ,  Kwang Joon Kim

发明人： Kyung Bum Huh ,  Kwang Joon Kim

IPC分类号： H02P31/00 ,  H02P25/08 ,  H02P1/46

CPC分类号： H02P25/08

摘要： A switched reluctance motor having a rotor and a stator is provided the motor includes means for adjusting a relative angle between a switch turn-off angle at which a switch for supplying power to a coil is turned off, and a tooth overlap angle at which a tooth portion of the rotor and a tooth portion S of the stator are overlapped according to a predetermined calculation. The switched reluctance motor has reduced vibration and noise levels, thereby increasing their application.

摘要翻译： 提供了一种具有转子和定子的开关磁阻电动机，该电动机包括用于调节用于向线圈供电的开关被切断的开关截止角之间的相对角度的装置， 根据预定的计算，转子的齿部和定子的齿部S重叠。 开关磁阻电机减少了振动和噪音水平，从而增加了其应用。

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。

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：US20090196614A1

公开(公告)日：2009-08-06

申请号：US12361522

申请日：2009-01-28

申请人： Bong Kyu Kim ,  Sang Jo Park ,  Heuk Park ,  Kwang Joon Kim

发明人： Bong Kyu Kim ,  Sang Jo Park ,  Heuk Park ,  Kwang Joon Kim

IPC分类号： H04J14/00

CPC分类号： H04J14/005

摘要： Provided are an acousto-optic filter and an optical code division multiple access (CDMA) system using the acousto-optic filter. The acousto-optic filer includes: an acousto-optic mode converter (AOMC) converting an optical signal of a specific optical frequency corresponding to a frequency of an electric signal of an optical signal of a first mode having a predetermined optical frequency band; and a mode stripper (MS) stripping an optical signal of the optical signal of the first mode that has been converted to a second mode.

摘要翻译： 提供了声光滤波器和使用声光滤波器的光码分多址（CDMA）系统。 声光滤波器包括：声光模式转换器（AOMC），其转换对应于具有预定光频带的第一模式的光信号的电信号的频率的特定光频率的光信号; 以及模式剥离器（MS）剥离已经转换为第二模式的第一模式的光信号的光信号。