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1. 发明授权

US07542677B2 Dispersion compensation method in optical communication system having optical add drop multiplexing capability 有权
标题翻译：具有光分插复用能力的光通信系统中的色散补偿方法
公开(公告)号：US07542677B2
公开(公告)日：2009-06-02
申请号：US11892302
申请日：2007-08-21
申请人： Motoyoshi Sekiya , Kazuo Yamane , Ryosuke Goto , Satoru Okano , Takehito Okeno
发明人： Motoyoshi Sekiya , Kazuo Yamane , Ryosuke Goto , Satoru Okano , Takehito Okeno
IPC分类号： H04J14/02 , H04B10/12 , H04B10/001
CPC分类号： H04B10/25253 , H04B2210/256 , H04J14/0206 , H04J14/0213
摘要： Dispersion compensation values are set so as to be transmittable to any path groups in a WDM optical communication system having OADM nodes, which includes transmitting-end and receiving-end terminal nodes; a WDM optical communication transmission line including a plurality of spans each having an optical fiber, the plurality of spans joining the transmitting-end and receiving-end terminal nodes; and a plurality of add drop multiplexing (OADM) nodes disposed on the optical communication transmission line; wherein when taking as the reference a residual dispersion target value of between the transmitting-end terminal and receiving-end terminal nodes, a residual dispersion target value for a node segment between one of the terminal nodes and one of the add drop multiplexing (OADM) nodes and a residual dispersion target value for a node-to-node segment between two of the add drop multiplexing (OADM) nodes are set so as to be proportional to ratios of the span counts in the node segment and in the node-to-node segment, respectively, to the total span count between the transmitting-end and receiving-end terminal nodes.
摘要翻译：色散补偿值被设置为可以发送到具有包括发送端和接收端终端节点的OADM节点的WDM光通信系统中的任何路径组; WDM光通信传输线，其包括多个具有光纤的跨度，所述多个跨接器连接所述发送端和接收端终端节点; 以及设置在所述光通信传输线上的多个添加分集复用（OADM）节点; 其中，当以发送端终端和接收端终端节点之间的残留分散目标值作为参考时，在一个终端节点之间的节点的剩余分散目标值与加法分集复用（OADM）之一之间，节点和两个添加分集复用（OADM）节点之间的节点到节点分段的残余分散目标值被设置成与节点分段和节点到节点中的跨度计数的比率成比例，节点段分别为发送端和接收端终端之间的总宽度计数。

2. 发明授权

US07359645B2 Dispersion compensating method, optical transmission system, and optical transmission apparatus 有权
标题翻译：色散补偿方法，光传输系统和光传输装置
公开(公告)号：US07359645B2
公开(公告)日：2008-04-15
申请号：US10945904
申请日：2004-09-22
申请人： Takuya Miyashita , Motoyoshi Sekiya , Ryosuke Goto
发明人： Takuya Miyashita , Motoyoshi Sekiya , Ryosuke Goto
IPC分类号： H04B10/12 , H04B10/00
CPC分类号： H04B10/25253
摘要： In an optical transmission system, each of optical transmission devices for transmitting wavelength-multiplexed light measures a real dispersion quantity. On the basis the real dispersion quantity measured in a measurement step and design dispersion quantities of respective transmission spans, a management control section computes compensation quantities of the respective transmission spans. The management control section notifies the compensation quantities computed in a computation step to the respective optical transmission devices. On the basis of the notified compensation quantities, the respective optical transmission devices compensate for the dispersion quantities. Thereby, optimal dispersion compensating values using a bypass design are acquired individually for optical paths included in WDM light. Dispersion is automatically, dynamically compensated, thereby inhibiting deterioration of a signal.
摘要翻译：在光传输系统中，用于发送波长多路复用光的每个光传输装置测量实际的色散量。基于在测量步骤中测量的实际色散量和各个传输跨度的设计色散量，管理控制部分计算各个传输跨度的补偿量。管理控制部将计算步骤计算出的补偿量通知各光传输装置。基于通知的补偿量，各个光传输装置补偿分散量。因此，对于包括在WDM光中的光路单独获取使用旁路设计的最佳色散补偿值。色散自动地进行动态补偿，从而抑制信号的劣化。

3. 发明授权

US07212285B2 Optical measurement device 有权
标题翻译：光学测量装置
公开(公告)号：US07212285B2
公开(公告)日：2007-05-01
申请号：US10992014
申请日：2004-11-19
申请人： Ryosuke Goto , Motoyoshi Sekiya
发明人： Ryosuke Goto , Motoyoshi Sekiya
IPC分类号： G01J3/28
CPC分类号： G01J3/18 , G01J3/027 , G01J3/04 , G01J3/1895 , G01J3/453
摘要： An optical measurement device capable of improving optical spectrum measurement accuracy without the need to structurally decrease a slit width. A diffraction grating for dispersing measurement light into respective different wavelengths is rotated in a given direction to produce diffracted light of selected wavelengths. A focusing lens converges the diffracted light to produce a converged beam. A slit control section varies the slit width at a constant scan speed to open or close the slit, thereby varying the passing bandwidth for the converged beam. A light receiving/measuring section receives the light passed through the slit, obtains a level function indicative of the power level of the received light that varies with change in optical frequency, and differentiates the level function by the scan speed to reproduce the spectrum profile of the measurement light.
摘要翻译：一种能够提高光谱测量精度而不需要在结构上减小狭缝宽度的光学测量装置。用于将测量光分散到各个不同波长的衍射光栅在给定方向上旋转以产生所选波长的衍射光。聚焦透镜会聚衍射光以产生会聚光束。狭缝控制部分以恒定的扫描速度改变狭缝宽度以打开或关闭狭缝，从而改变会聚束的通过带宽。光接收/测量部分接收通过狭缝的光，获得指示随着光频率的变化而变化的接收光的功率电平的电平函数，并且将电平函数除以扫描速度，以再现频谱分布测量灯。

4. 发明授权

US07031049B2 Loss point detecting method and distributed raman amplifier applying the same 失效
标题翻译：损耗点检测方法和分布式拉曼放大器应用相同
公开(公告)号：US07031049B2
公开(公告)日：2006-04-18
申请号：US10699698
申请日：2003-11-04
申请人： Takashi Kamada , Motoyoshi Sekiya , Ryosuke Goto
发明人： Takashi Kamada , Motoyoshi Sekiya , Ryosuke Goto
IPC分类号： H01S3/00 , H04B10/12 , H04B10/08 , H04B17/00
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/1301
摘要： Power of scattered light separated from an optical transmission path is monitored, part of the excitation light is separated and power thereof is monitored, power of reflected light which passes in a direction opposite to a direction in which signal light passes through the optical transmission path is monitored, and, when monitored power of an excitation light reaches a predetermined determination value, whether or not any loss point occurs is determined, based on a ratio between the monitored power of the scattered light and the monitored power of the reflected light.
摘要翻译：监测从光传输路径分离的散射光的功率，分离激发光的一部分并监视其功率，反射光的通过方向与信号光通过光传输路径的方向相反的方向的功率为并且当激发光的监视功率达到预定的确定值时，基于所监视的散射光的功率与所检测的反射光的功率之间的比率来确定是否发生任何损耗点。

5. 发明授权

US07474854B2 Optical transmission system 失效
标题翻译：光传输系统
公开(公告)号：US07474854B2
公开(公告)日：2009-01-06
申请号：US10731266
申请日：2003-12-09
申请人： Motoyoshi Sekiya , Ryosuke Goto
发明人： Motoyoshi Sekiya , Ryosuke Goto
IPC分类号： H04J14/02
CPC分类号： H04B10/25073
摘要： In an optical transmission system which can keep a flat pass characteristic within an optical signal modulation band, a spectrum of a dropped optical signal within a modulation band per channel is monitored, and non-flatness for the optical signal is compensated by detecting the non-flatness of a pass characteristic of a transmission line from the spectrum.
摘要翻译：在能够在光信号调制带内保持平坦通过特性的光传输系统中，监视每个通道的调制频带内的丢弃光信号的频谱，通过检测非信道光信号来补偿光信号的非平坦度，来自频谱的传输线的通过特性的平坦度。

6. 发明授权

US07274878B2 Dispersion compensation method in optical communication system having optical add drop multiplexing capability 有权
标题翻译：具有光分插复用能力的光通信系统中的色散补偿方法
公开(公告)号：US07274878B2
公开(公告)日：2007-09-25
申请号：US10404045
申请日：2003-04-02
申请人： Motoyoshi Sekiya , Kazuo Yamane , Ryosuke Goto , Satoru Okano , Takehito Okeno
发明人： Motoyoshi Sekiya , Kazuo Yamane , Ryosuke Goto , Satoru Okano , Takehito Okeno
IPC分类号： H04B10/00 , H04B10/12 , H04J14/02
CPC分类号： H04B10/25253 , H04B2210/256 , H04J14/0206 , H04J14/0213
摘要： Dispersion compensation values are set so as to be transmittable to any path groups in a WDM optical communication system having OADM nodes, which includes transmitting-end and receiving-end terminal nodes; a WDM optical communication transmission line including a plurality of spans each having an optical fiber, the plurality of spans joining the transmitting-end and receiving-end terminal nodes; and a plurality of add drop multiplexing (OADM) nodes disposed on the optical communication transmission line; wherein when taking as the reference a residual dispersion target value of between the transmitting-end terminal and receiving-end terminal nodes, a residual dispersion target value for a node segment between one of the terminal nodes and one of the add drop multiplexing (OADM) nodes and a residual dispersion target value for a node-to-node segment between two of the add drop multiplexing (OADM) nodes are set so as to be proportional to ratios of the span counts in the node segment and in the node-to-node segment, respectively, to the total span count between the transmitting-end and receiving-end terminal nodes.
摘要翻译：色散补偿值被设置为可以发送到具有包括发送端和接收端终端节点的OADM节点的WDM光通信系统中的任何路径组; WDM光通信传输线，其包括多个具有光纤的跨度，所述多个跨接器连接所述发送端和接收端终端节点; 以及设置在所述光通信传输线上的多个添加分集复用（OADM）节点; 其中，当以发送端终端和接收端终端节点之间的残留分散目标值作为参考时，在一个终端节点之间的节点的剩余分散目标值与加法分集复用（OADM）之一之间，节点和两个添加分集复用（OADM）节点之间的节点到节点分段的残余分散目标值被设置成与节点分段和节点到节点中的跨度计数的比率成比例，节点段分别为发送端和接收端终端之间的总宽度计数。

7. 发明申请

US20060124842A1 Measuring method and measuring apparatus for coherent crosstalk light 失效
标题翻译：相干串扰光的测量方法和测量装置
公开(公告)号：US20060124842A1
公开(公告)日：2006-06-15
申请号：US11083015
申请日：2005-03-18
申请人： Ryosuke Goto , Motoyoshi Sekiya
发明人： Ryosuke Goto , Motoyoshi Sekiya
IPC分类号： G01N21/25
CPC分类号： G01M11/333
摘要： An apparatus for measuring coherent crosstalk (CXT) light of the invention generates in a light source section, measurement light which has been modulated to a sawtooth wave shape and applies this to an object of measurement; sends transmission light and CXT light emerging from the object of measurement to a light receiving section via a variable optical attenuator; applies an electrical signal photoelectric-converted in an optical receiver, to a frequency filter, to thereby extract a beat component corresponding to a frequency difference between the transmission light and CXT light; controls the modulation period of the measurement light so that the power of the beat component becomes a local maximum; varies an optical attenuation amount of a variable optical attenuator, while keeping constant the optimized modulation period; and measures with high accuracy the amount of CXT light generated in the object of measurement, based on a rate of variation in the power of the beat component caused at that time.
摘要翻译：本发明的测量相干串扰（CXT）光的装置在光源部分产生已被调制成锯齿波形并将其应用于测量对象的测量光; 通过可变光衰减器将从测量对象出射的发射光和CXT光发送到光接收部分; 将在光接收机中光电转换的电信号应用于频率滤波器，从而提取与传输光和CXT光之间的频率差对应的拍子成分; 控制测量光的调制周期，使得拍子组件的功率变成局部最大值; 改变可变光衰减器的光衰减量，同时保持恒定的优化调制周期; 并且基于当时引起的节拍分量的功率的变化率，高精度地测量在测量对象中产生的CXT光的量。

8. 发明申请

US20060012786A1 Optical measurement device 有权
标题翻译：光学测量装置
公开(公告)号：US20060012786A1
公开(公告)日：2006-01-19
申请号：US10992014
申请日：2004-11-19
申请人： Ryosuke Goto , Motoyoshi Sekiya
发明人： Ryosuke Goto , Motoyoshi Sekiya
IPC分类号： G01J3/28
CPC分类号： G01J3/18 , G01J3/027 , G01J3/04 , G01J3/1895 , G01J3/453
摘要： An optical measurement device capable of improving optical spectrum measurement accuracy without the need to structurally decrease a slit width. A diffraction grating for dispersing measurement light into respective different wavelengths is rotated in a given direction to produce diffracted light of selected wavelengths. A focusing lens converges the diffracted light to produce a converged beam. A slit control section varies the slit width at a constant scan speed to open or close the slit, thereby varying the passing bandwidth for the converged beam. A light receiving/measuring section receives the light passed through the slit, obtains a level function indicative of the power level of the received light that varies with change in optical frequency, and differentiates the level function by the scan speed to reproduce the spectrum profile of the measurement light.
摘要翻译：一种能够提高光谱测量精度而不需要在结构上减小狭缝宽度的光学测量装置。用于将测量光分散到各个不同波长的衍射光栅在给定方向上旋转以产生所选波长的衍射光。聚焦透镜会聚衍射光以产生会聚光束。狭缝控制部分以恒定的扫描速度改变狭缝宽度以打开或关闭狭缝，从而改变会聚束的通过带宽。光接收/测量部分接收通过狭缝的光，获得指示随着光频率的变化而变化的接收光的功率电平的电平函数，并且将电平函数除以扫描速度，以再现频谱分布测量灯。

9. 发明申请

US20080002979A1 Dispersion compensation method in optical communication system having optical add drop multiplexing capability 有权
标题翻译：具有光分插复用能力的光通信系统中的色散补偿方法
公开(公告)号：US20080002979A1
公开(公告)日：2008-01-03
申请号：US11892302
申请日：2007-08-21
申请人： Motoyoshi Sekiya , Kazuo Yamane , Ryosuke Goto , Satoru Okano , Takehito Okeno
发明人： Motoyoshi Sekiya , Kazuo Yamane , Ryosuke Goto , Satoru Okano , Takehito Okeno
IPC分类号： H04J14/02
CPC分类号： H04B10/25253 , H04B2210/256 , H04J14/0206 , H04J14/0213
摘要： Dispersion compensation values are set so as to be transmittable to any path groups in a WDM optical communication system having OADM nodes, which includes transmitting-end and receiving-end terminal nodes; a WDM optical communication transmission line including a plurality of spans each having an optical fiber, the plurality of spans joining the transmitting-end and receiving-end terminal nodes; and a plurality of add drop multiplexing (OADM) nodes disposed on the optical communication transmission line; wherein when taking as the reference a residual dispersion target value of between the transmitting-end terminal and receiving-end terminal nodes, a residual dispersion target value for a node segment between one of the terminal nodes and one of the add drop multiplexing (OADM) nodes and a residual dispersion target value for a node-to-node segment between two of the add drop multiplexing (OADM) nodes are set so as to be proportional to ratios of the span counts in the node segment and in the node-to-node segment, respectively, to the total span count between the transmitting-end and receiving-end terminal nodes.
摘要翻译：色散补偿值被设置为可以发送到具有包括发送端和接收端终端节点的OADM节点的WDM光通信系统中的任何路径组; WDM光通信传输线，其包括多个具有光纤的跨度，所述多个跨接器连接所述发送端和接收端终端节点; 以及设置在所述光通信传输线上的多个添加分集复用（OADM）节点; 其中，当以发送端终端和接收端终端节点之间的残留分散目标值作为参考时，在一个终端节点之间的节点段之间的残留分散目标值和添加分集复用（OADM）之一，节点和两个添加分集复用（OADM）节点之间的节点到节点分段的残余分散目标值被设置成与节点分段和节点到节点中的跨度计数的比率成比例，节点段分别为发送端和接收端终端之间的总宽度计数。

10. 发明授权

US07208722B2 Measuring method and measuring apparatus for coherent crosstalk light 失效
标题翻译：相干串扰光的测量方法和测量装置
公开(公告)号：US07208722B2
公开(公告)日：2007-04-24
申请号：US11083015
申请日：2005-03-18
申请人： Ryosuke Goto , Motoyoshi Sekiya
发明人： Ryosuke Goto , Motoyoshi Sekiya
IPC分类号： G01N21/25
CPC分类号： G01M11/333
摘要： An apparatus for measuring coherent crosstalk (CXT) light of the invention generates in a light source section, measurement light which has been modulated to a sawtooth wave shape and applies this to an object of measurement; sends transmission light and CXT light emerging from the object of measurement to a light receiving section via a variable optical attenuator; applies an electrical signal photoelectric-converted in an optical receiver, to a frequency filter, to thereby extract a beat component corresponding to a frequency difference between the transmission light and CXT light; controls the modulation period of the measurement light so that the power of the beat component becomes a local maximum; varies an optical attenuation amount of a variable optical attenuator, while keeping constant the optimized modulation period; and measures with high accuracy the amount of CXT light generated in the object of measurement, based on a rate of variation in the power of the beat component caused at that time.
摘要翻译：本发明的测量相干串扰（CXT）光的装置在光源部分产生已被调制成锯齿波形并将其应用于测量对象的测量光; 通过可变光衰减器将从测量对象出射的发射光和CXT光发送到光接收部分; 将在光接收机中光电转换的电信号应用于频率滤波器，从而提取与传输光和CXT光之间的频率差对应的拍子成分; 控制测量光的调制周期，使得拍子组件的功率变成局部最大值; 改变可变光衰减器的光衰减量，同时保持恒定的优化调制周期; 并且基于当时引起的节拍分量的功率的变化率，高精度地测量在测量对象中产生的CXT光的量。

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