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1. 发明授权

US07158288B2 Long-wavelength-band gain-controlled optical amplifier 有权
标题翻译：长波长带增益控制光放大器
公开(公告)号：US07158288B2
公开(公告)日：2007-01-02
申请号：US10896347
申请日：2004-07-20
申请人： Han Hyub Lee , Donghan Lee , Hee Sang Chung , Hyun Jae Lee
发明人： Han Hyub Lee , Donghan Lee , Hee Sang Chung , Hyun Jae Lee
IPC分类号： H01S3/00
CPC分类号： H04B10/296 , H01S3/0064 , H01S3/067 , H01S3/0677 , H01S3/094023 , H01S3/0941 , H01S3/1608
摘要： A long-wavelength band (L-band) optical amplifier capable of maintaining a gain constant, thereby providing a stable optical output even when an optical power or a wavelength of a signal input thereto changes. The optical amplifier includes an amplifier which amplifies an input signal, and an amplified spontaneous emission (ASE) reflector which reflects backward ASE generated by the amplifier so that the backward ASE is fed back to the amplifier.
摘要翻译：即使当光功率或输入信号的波长发生变化时，能够保持增益恒定的长波长带（L波段）光放大器，从而提供稳定的光输出。光放大器包括放大输入信号的放大器和放大的自发发射（ASE）反射器，其反射由放大器产生的反向ASE，以使反向ASE反馈到放大器。

2. 发明授权

US07440695B2 Optical transmission line monitoring system using a gain clamped optical amplifier 失效
标题翻译：光传输线路监控系统采用增益钳位光放大器
公开(公告)号：US07440695B2
公开(公告)日：2008-10-21
申请号：US10968308
申请日：2004-10-18
申请人： Han Hyub Lee , Donghan Lee , Hee Sang Chung , Kwangjoon Kim
发明人： Han Hyub Lee , Donghan Lee , Hee Sang Chung , Kwangjoon Kim
IPC分类号： H04B10/08
CPC分类号： H04B10/071 , G01M11/3145
摘要： There are provided a method and system for monitoring an optical transmission line. The system for monitoring the optical transmission line includes: an OTDR (optical time-domain reflectometer) transmitting a monitoring light to an optical transmission line, measuring a reflected light or backscattered light to monitor the optical transmission line; an optical amplification unit amplifying the monitoring light transmitted on the optical transmission line by using a gain clamped optical amplifier; and a filter unit removing a component having a wavelength outside a wavelength band of the monitoring light from a backward ASE (amplified spontaneous emission) generated by the optical amplification unit. Accordingly, it is possible to extend an optical transmission line monitoring distance of the OTDR. As a result, it is possible to prevent deterioration of the performance of the OTDR because of the backward ASE.
摘要翻译：提供了一种用于监测光传输线的方法和系统。用于监测光传输线路的系统包括：将光监测光传输到光传输线的OTDR（光时域反射计），测量反射光或反向散射光以监测光传输线; 光放大单元，通过使用增益钳位光放大器来放大在光传输线上传输的监视光; 以及滤光器单元，从由光放大单元产生的反向ASE（放大的自发发射）去除具有监测光的波长带外的波长的分量。因此，可以延长OTDR的光传输线监视距离。结果，可以防止由于向后的ASE而导致OTDR的性能的恶化。

3. 发明授权

US06992816B2 Apparatus and method for gain-spectrum-tilt compensation in long-wavelength band dispersion-compensating hybrid fiber amplifier 失效
标题翻译：在长波段色散补偿混合光纤放大器中增益频谱倾斜补偿的装置和方法
公开(公告)号：US06992816B2
公开(公告)日：2006-01-31
申请号：US10729088
申请日：2003-12-04
申请人： Hee Sang Chung , Won Kyoung Lee , Sun Hyok Chang , Hyun Jae Lee , Moo Jung Chu , Han Hyub Lee , Dong Han Lee , Yong Bae Lee
发明人： Hee Sang Chung , Won Kyoung Lee , Sun Hyok Chang , Hyun Jae Lee , Moo Jung Chu , Han Hyub Lee , Dong Han Lee , Yong Bae Lee
IPC分类号： H01S3/00
CPC分类号： H01S3/06758 , H01S3/1301 , H01S3/302 , H01S2301/04
摘要： The present invention provides an apparatus and method for compensating for the variation of a gain spectrum attributable to the temperature variation of a fiber amplifier, and a long-wavelength band dispersion-compensating hybrid amplifier equipped with the gain spectrum compensating apparatus. The apparatus includes a DCF located between a first amplification stage and a second amplification stage to compensate for dispersion of an optical signal output from the first amplification stage and perform Raman amplification of the optical signal using input pumping light; at least one pumping light provision means for providing forward or backward pumping light to the DCF; first and second temperature detection means for detecting temperature variations of the first and second amplification stages, respectively; and control means for controlling intensity of the pumping light of the pumping light provision means according to the detected temperature variations.
摘要翻译：本发明提供一种用于补偿归因于光纤放大器的温度变化的增益谱的变化的装置和方法，以及配备有增益谱补偿装置的长波长带色散补偿混合放大器。该装置包括位于第一放大级和第二放大级之间的DCF，以补偿从第一放大级输出的光信号的色散，并使用输入泵浦光执行光信号的拉曼放大; 至少一个泵送光提供装置，用于向DCF提供向前或向后的泵浦光; 第一和第二温度检测装置，用于分别检测第一和第二放大级的温度变化; 以及用于根据检测到的温度变化来控制泵送光提供装置的泵浦光的强度的控制装置。

4. 发明授权

US07230958B2 Raman amplifier and raman pumping method 有权
标题翻译：拉曼放大器和拉曼抽水法
公开(公告)号：US07230958B2
公开(公告)日：2007-06-12
申请号：US10835225
申请日：2004-04-28
申请人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
发明人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
IPC分类号： H01S3/30
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094076 , H01S3/094096 , H01S3/1301 , H01S3/1305
摘要： Provided are a Raman amplifier and a Raman pumping method. A light source unit outputs a pumping light having a wavelength that periodically changes. A light intensity control unit varies a light intensity of the pumping light using the pumping light to improve the gain flatness of a Raman gain. A control unit directs the light intensity control unit to control the light intensity of the pumping light in synchronization with changes in the wavelength of the pumping light.
摘要翻译：提供了拉曼放大器和拉曼泵浦方法。光源单元输出具有周期性变化的波长的泵浦光。光强度控制单元使用泵浦光来改变泵浦光的光强度，以提高拉曼增益的增益平坦度。控制单元引导光强度控制单元与泵浦光的波长的变化同步地控制泵浦光的光强度。

5. 发明申请

US20050122570A1 Raman amplifier and raman pumping method 有权
标题翻译：拉曼放大器和拉曼抽水法
公开(公告)号：US20050122570A1
公开(公告)日：2005-06-09
申请号：US10835225
申请日：2004-04-28
申请人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
发明人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
IPC分类号： G02F1/35 , H01S3/067 , H01S3/094 , H01S3/13 , H01S3/131 , H01S3/30
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094076 , H01S3/094096 , H01S3/1301 , H01S3/1305
摘要： Provided are a Raman amplifier and a Raman pumping method. A light source unit outputs a pumping light having a wavelength that periodically changes. A light intensity control unit varies a light intensity of the pumping light using the pumping light to improve the gain flatness of a Raman gain. A control unit directs the light intensity control unit to control the light intensity of the pumping light in synchronization with changes in the wavelength of the pumping light.
摘要翻译：提供了拉曼放大器和拉曼泵浦方法。光源单元输出具有周期性变化的波长的泵浦光。光强度控制单元使用泵浦光来改变泵浦光的光强度，以提高拉曼增益的增益平坦度。控制单元引导光强度控制单元与泵浦光的波长的变化同步地控制泵浦光的光强度。

6. 发明授权

US07970021B2 Derate matching method and apparatus 有权
标题翻译：降低匹配方法和装置
公开(公告)号：US07970021B2
公开(公告)日：2011-06-28
申请号：US12544645
申请日：2009-08-20
申请人： Eun Tae Kim , Dae Soon Cho , Hee Sang Chung , Hyeong Jun Park
发明人： Eun Tae Kim , Dae Soon Cho , Hee Sang Chung , Hyeong Jun Park
IPC分类号： H04J3/04
CPC分类号： H04L1/0052 , H04L1/0067 , H04L1/0071
摘要： Provided are a method and apparatus for derate matching a rate-matched data. The received data is deinterleaved and derate matched at a time, without using input buffers or constructing input buffers in parallel. Thus, a total process time necessary for the deinterleaving process and the derate matching process is reduced, and the use of memories such as the input buffers is minimized.
摘要翻译：提供了一种降低匹配速率匹配数据的方法和装置。接收到的数据一次被解交错和降额匹配，而不使用输入缓冲器或并行构建输入缓冲器。因此，减少解交织处理和降额匹配处理所需的总处理时间，并且使诸如输入缓冲器的存储器的使用最小化。

7. 发明授权

US06559989B1 Optical packet header processing apparatus for optical packet switch 有权
标题翻译：用于光分组交换的光分组报头处理装置
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。

8. 发明授权

US08555133B2 Rate matching apparatus and rate matching method thereof 有权
标题翻译：速率匹配装置及其速率匹配方法
公开(公告)号：US08555133B2
公开(公告)日：2013-10-08
申请号：US13020143
申请日：2011-02-03
申请人： Dae Soon Cho , EunTae Kim , Hee Sang Chung , JungSook Bae , Daeho Kim
发明人： Dae Soon Cho , EunTae Kim , Hee Sang Chung , JungSook Bae , Daeho Kim
IPC分类号： H03M13/00
CPC分类号： H04L1/0067 , H04L1/0071
摘要： Provided is a rate matching apparatus. The rate matching apparatus includes interleavers, dummy bit removers, a bit collector, a memory and a selector. The interleavers interleave code blocks, respectively. The dummy bit removers remove dummy bits of the interleaved code blocks, respectively. The bit collector collects code blocks with the dummy bits removed by bit units, and divides a collected data bit stream into systematic data and parity data. The memory stores the systematic data and the parity data in parallel. The selector outputs in parallel a plurality of data bits which are selected from the systematic data and parity data of the memory.
摘要翻译：提供了一种速率匹配装置。速率匹配装置包括交织器，伪位去除器，位收集器，存储器和选择器。交织器分别交替代码块。虚拟位去除器分别去除交织代码块的虚拟位。位收集器采集通过位单元去除虚拟位的代码块，并将收集的数据位流分成系统数据和奇偶校验数据。存储器并行地存储系统数据和奇偶校验数据。选择器并行输出从存储器的系统数据和奇偶校验数据中选择的多个数据位。

9. 发明授权

US08391428B2 Auto gain control method in digital communication system 失效
标题翻译：数字通信系统中的自动增益控制方法
公开(公告)号：US08391428B2
公开(公告)日：2013-03-05
申请号：US12543815
申请日：2009-08-19
申请人： Hyun Gu Hwang , Hyeong Jun Park , Hee Sang Chung
发明人： Hyun Gu Hwang , Hyeong Jun Park , Hee Sang Chung
IPC分类号： H04B1/10
CPC分类号： H03G3/3089
摘要： Provided is an auto gain control method in a digital communication system. The auto gain control method checks a distribution of a signal and a distribution of a signal envelope during a regular check interval, and determines a state of a current gain value from the distribution of the signal and the distribution of the signal envelope which are obtained through the checking of the distribution. The auto gain control method controls a gain value for auto gain control according to the determined state of the current gain value.
摘要翻译：提供了一种数字通信系统中的自动增益控制方法。自动增益控制方法在常规检查间隔期间检查信号的分布和信号包络的分布，并根据信号的分布和信号包络的分布来确定当前增益值的状态检查分配。自动增益控制方法根据当前增益值的确定状态来控制自动增益控制的增益值。

10. 发明授权

US07385753B2 Hybrid optical amplifier using gain-clamped semiconductor optical amplifier enabling raman amplification 有权
标题翻译：混合光放大器采用增益钳位半导体光放大器，实现拉曼放大
公开(公告)号：US07385753B2
公开(公告)日：2008-06-10
申请号：US11010350
申请日：2004-12-14
申请人： Hee Sang Chung , Sun Hyok Chang , Kwangjoon Kim
发明人： Hee Sang Chung , Sun Hyok Chang , Kwangjoon Kim
IPC分类号： H01S3/00
CPC分类号： H01S3/2375 , H01S3/06754 , H01S3/10007 , H01S3/302 , H01S5/1071 , H01S5/12 , H01S5/125 , H01S5/14 , H01S5/5072
摘要： 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.
摘要翻译：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。

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