公开(公告)号：US07551857B2

公开(公告)日：2009-06-23

申请号：US11177590

申请日：2005-07-11

申请人： Tougo Fukushi ,  Hideaki Sugiya ,  Akira Yamamoto ,  Masanori Kondoh

发明人： Tougo Fukushi ,  Hideaki Sugiya ,  Akira Yamamoto ,  Masanori Kondoh

IPC分类号： H04B10/02

CPC分类号： H04B10/03 ,  H04B10/0775 ,  H04B2210/077 ,  H04B2210/08 ,  H04B2210/258

摘要： An optical amplifier may be quickly returned from a shutdown state to a regular state after getting recovery information of a fault. Gain setting by ASE is conducted to the repeaters on the up-stream side during the shutdown state, by outputting ASE light with the same intensity as the WDM signal. Accordingly, before realizing the recovery of shutdown, the gain setting is completed with the light whose intensity is within the safe criterion. After realizing the recovery of shutdown, the optical transmission system can be returned quickly to the regular operating state after recovery of shutdown state.

摘要翻译： 获得故障恢复信息后，光放大器可能会从关机状态快速返回到常规状态。 通过输出与WDM信号强度相同的ASE光，在关断状态期间通过ASE向上游侧的中继器进行增益设置。 因此，在实现关机恢复之前，利用强度在安全标准内的光完成增益设定。 实现关机恢复后，恢复关机状态后，光​​传输系统可快速恢复正常运行状态。

公开(公告)号：US20060013583A1

公开(公告)日：2006-01-19

申请号：US11177590

申请日：2005-07-11

申请人： Tougo Fukushi ,  Hideaki Sugiya ,  Akira Yamamoto ,  Masanori Kondoh

发明人： Tougo Fukushi ,  Hideaki Sugiya ,  Akira Yamamoto ,  Masanori Kondoh

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/03 ,  H04B10/0775 ,  H04B2210/077 ,  H04B2210/08 ,  H04B2210/258

摘要： An optical amplifier may be quickly returned from a shutdown state to a regular state after getting recovery information of a fault. Gain setting by ASE is conducted to the repeaters on the up-stream side during the shutdown state, by outputting ASE light with the same intensity as the WDM signal. Accordingly, before realizing the recovery of shutdown, the gain setting is completed with the light whose intensity is within the safe criterion. After realizing the recovery of shutdown, the optical transmission system can be returned quickly to the regular operating state after recovery of shutdown state.

公开(公告)号：US08180219B2

公开(公告)日：2012-05-15

申请号：US12109414

申请日：2008-04-25

申请人： Snigdho C. Bardalai ,  Abinder S. Dhillon ,  Sanjay Gera ,  Taichi Ueki ,  Hideaki Sugiya ,  Vibha Sarin

发明人： Snigdho C. Bardalai ,  Abinder S. Dhillon ,  Sanjay Gera ,  Taichi Ueki ,  Hideaki Sugiya ,  Vibha Sarin

IPC分类号： H04B10/20

CPC分类号： H04J14/0221 ,  H04J14/0201 ,  H04J14/0227 ,  H04L12/66

摘要： In particular embodiments, providing signal reachability information to a network includes establishing signal reachability information at a network node of the network. The signal reachability information describes attributes that affect reachability of an optical signal. The signal reachability information is inserted into an advertisement, and the advertisement is sent to network nodes of the network.

摘要翻译： 在特定实施例中，向网络提供信号可达性信息包括在网络的网络节点处建立信号可达性信息。 信号可达性信息描述影响光信号可达性的属性。 将信号可达性信息插入到广告中，并将广告发送到网络的网络节点。

公开(公告)号：US20080239469A1

公开(公告)日：2008-10-02

申请号：US11859842

申请日：2007-09-24

申请人： Miki ONAKA ,  Hideaki Sugiya ,  Yasushi Sugaya ,  Etsuko Hayashi

发明人： Miki ONAKA ,  Hideaki Sugiya ,  Yasushi Sugaya ,  Etsuko Hayashi

IPC分类号： H01S3/10

CPC分类号： H01S3/1301 ,  H01S3/06754 ,  H01S3/10015 ,  H01S3/1305 ,  H04B10/296

摘要： The present invention relates to an apparatus for controlling a gain of an optical amplifier, and the apparatus comprises a target gain calculating unit for calculating, as a target gain for an optical amplifier, a value obtained by increasing or decreasing a gain (output) of signal light as the number of wavelengths of wavelength-multiplexed signal light decreases, and a control signal outputting unit for outputting a control signal to the optical amplifier so as to amplify the wavelength-multiplexed signal light with the target gain calculated by the target gain calculating unit. This promptly suppresses a fluctuation of signal light level, particularly, a fluctuation of output light power of an optical amplifier stemming from a variation of the number of wavelengths of wavelength-multiplexed signal light.

摘要翻译： 本发明涉及一种用于控制光放大器的增益的装置，该装置包括：目标增益计算单元，用于计算通过增加或减少增益（输出）获得的值作为光放大器的目标增益 波长多路复用信号光的波长数的信号光减少;以及控制信号输出单元，用于向光放大器输出控制信号，以便以目标增益计算的目标增益放大波分复用信号光 单元。 这迅速地抑制信号光电平的波动，特别是由波长多路复用信号光的波长数的变化导致的光放大器的输出光功率的波动。

公开(公告)号：US06373624B1

公开(公告)日：2002-04-16

申请号：US09944089

申请日：2001-09-04

申请人： Hideaki Sugiya ,  Yoshihito Onoda

发明人： Hideaki Sugiya ,  Yoshihito Onoda

IPC分类号： H01S300

CPC分类号： H04B10/2912 ,  H01S3/06758 ,  H01S3/10015 ,  H01S3/1301 ,  H04B10/291 ,  H04B10/2931 ,  H04B2210/003

摘要： Two rare earth-doped optical fibers are connected in series and used to amplify input light. A splitter is installed between these two rare earth-doped optical fibers. The input light is monitored by having the portion of the input light that is branched off, by the splitter received by a photodiode. Excitation light output from a laser light source is guided by optical couplers and supplied to the above rare earth-doped optical fibers. A control circuit controls the output light level and, at the same time, stops the output from the laser light source when the input light level drops below a specified threshold value. The gain of the first stage rare earth-doped optical fiber while excitation light is being supplied is larger than the loss that occurs due to branching of the input light by the splitter.

摘要翻译： 两个稀土掺杂光纤串联连接，用于放大输入光。 这两种稀土掺杂光纤之间安装有分路器。 通过由光电二极管接收的分路器使输入光的一部分被分支来监测输入光。 从激光源输出的激发光由光耦合器引导并提供给上述稀土掺杂光纤。 控制电路控制输出光电平，并且当输入光电平降低到指定阈值以下时，同时停止来自激光光源的输出。 当提供激发光时，第一级稀土掺杂光纤的增益大于由于分路器的输入光的分支而发生的损耗。

公开(公告)号：US6118576A

公开(公告)日：2000-09-12

申请号：US828556

申请日：1997-03-31

申请人： Hideaki Sugiya ,  Yoshihito Onoda

发明人： Hideaki Sugiya ,  Yoshihito Onoda

IPC分类号： H01S3/07 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/131 ,  H01S3/00 ,  H04B10/02

CPC分类号： H04B10/2912 ,  H01S3/06758 ,  H04B10/291 ,  H04B10/2931 ,  H01S3/10015 ,  H01S3/1301 ,  H04B2210/003

摘要： Two rare earth-doped optical fibers are connected in series and used to amplify input light. A splitter is installed between these two rare earth-doped optical fibers. The input light is monitored by having the portion of the input light that is branched off by the splitter received by a photodiode. Excitation light output from a laser light source is guided by optical couplers and supplied to the above rare earth-doped optical fibers. A control circuit controls the output light level and, at the same time, stops the output from the laser light source when the input light level drops below a specified threshold value. The gain of the first stage rare earth-doped optical fiber while excitation light is being supplied is larger than the loss that occurs due to branching of the input light by the splitter.

摘要翻译： 两个稀土掺杂光纤串联连接，用于放大输入光。 这两种稀土掺杂光纤之间安装有分路器。 通过使由光电二极管接收的分路器分支的输入光的部分来监视输入光。 从激光源输出的激发光由光耦合器引导并提供给上述稀土掺杂光纤。 控制电路控制输出光电平，并且当输入光电平降低到指定阈值以下时，同时停止来自激光光源的输出。 当提供激发光时，第一级稀土掺杂光纤的增益大于由于分路器的输入光的分支而发生的损耗。

公开(公告)号：US20090269061A1

公开(公告)日：2009-10-29

申请号：US12109414

申请日：2008-04-25

申请人： Snigdho C. Bardalai ,  Abinder S. Dhillon ,  Sanjay Gera ,  Taichi Ueki ,  Hideaki Sugiya ,  Vibha Sarin

发明人： Snigdho C. Bardalai ,  Abinder S. Dhillon ,  Sanjay Gera ,  Taichi Ueki ,  Hideaki Sugiya ,  Vibha Sarin

IPC分类号： H04J14/00

CPC分类号： H04J14/0221 ,  H04J14/0201 ,  H04J14/0227 ,  H04L12/66

摘要： In particular embodiments, providing signal reachability information to a network includes establishing signal reachability information at a network node of the network. The signal reachability information describes attributes that affect reachability of an optical signal. The signal reachability information is inserted into an advertisement, and the advertisement is sent to network nodes of the network.

摘要翻译： 在特定实施例中，向网络提供信号可达性信息包括在网络的网络节点处建立信号可达性信息。 信号可达性信息描述影响光信号可达性的属性。 将信号可达性信息插入到广告中，并将广告发送到网络的网络节点。

公开(公告)号：US20090116833A1

公开(公告)日：2009-05-07

申请号：US12241304

申请日：2008-09-30

申请人： Takayuki SHIMIZU ,  Hideaki Sugiya ,  Taichi Ueki

发明人： Takayuki SHIMIZU ,  Hideaki Sugiya ,  Taichi Ueki

IPC分类号： H04J14/00 ,  H04B17/00 ,  H04B10/00 ,  H04B10/08

CPC分类号： H04J14/0227 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0284 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0084

摘要： Each network device holds as a database parameters relating to the size of a factor of signal degradation of the device, and relays the parameters according to a path through which a signal passes. When each network device receives a relayed parameter, it accumulates the parameter of the device to the received parameter value, and transmits the result to the network device at the next stage. The network device on the terminating side of the path estimates the size of the degradation of the signals in the entire path using the received parameter, thereby determining the reachability as to whether or not a signal can be transmitted through the path.

摘要翻译： 每个网络设备保持与设备的信号劣化因素的大小相关的数据库参数，并且根据信号通过的路径中继参数。 当每个网络设备收到中继参数时，将设备的参数累加到接收到的参数值，并在下一阶段将结果发送给网络设备。 在路径的终端侧的网络设备使用接收到的参数来估计整个路径中的信号的衰减的大小，由此确定信号是否可以通过路径传输。

公开(公告)号：US07139120B2

公开(公告)日：2006-11-21

申请号：US10699655

申请日：2003-11-04

申请人： Hideaki Sugiya

发明人： Hideaki Sugiya

IPC分类号： H01S3/00

CPC分类号： H04B10/2941 ,  H04B10/2916

摘要： An optical amplifier, provided in a WDM transmission system, contains an amplification medium for amplifying WDM light, a measurement part for measuring at least one input optical power of the WDM light on both input and output sides of the amplification medium, a variable gain equalizer for variably setting a passing-wavelength characteristic, a database for holding data representing wavelength characteristics that respectively correspond to transmission line types, an arithmetic part for computing an inverted passing-wavelength characteristic resulting from a passing-wavelength, based on an acquired transmission line type, the optical power measured by the measurement part, and the data held in the database, and a setting part for setting a passing-wavelength characteristic of the variable gain equalizer, based on the inverted passing-wavelength characteristic computed by the arithmetic part, and with this, capable of controlling optical filters more quickly and amplifying optical signals more efficiently in WDM systems.

摘要翻译： 在WDM传输系统中提供的光放大器包括用于放大WDM光的放大介质，用于测量放大介质的输入和输出侧的WDM光的至少一个输入光功率的测量部分，可变增益均衡器 用于可变地设置通过波长特性的数据库，用于保存表示分别对应于传输线类型的波长特性的数据的数据库，用于计算由通过波长产生的反向通过波长特性的运算部分，基于所获取的传输线类型 由测量部分测量的光功率和保存在数据库中的数据，以及设置部分，用于根据由算术部分计算出的反向通过波长特性来设定可变增益均衡器的通过波长特性;以及 由此，能够更快速地控制滤光器并放大光学层 在WDM系统中更有效率。

公开(公告)号：US5859725A

公开(公告)日：1999-01-12

申请号：US916415

申请日：1997-08-22

申请人： Hideaki Sugiya ,  Yuji Tamura

发明人： Hideaki Sugiya ,  Yuji Tamura

IPC分类号： G02B6/293 ,  H04B10/07 ,  H04B10/2507 ,  H04B10/29 ,  H04B10/294 ,  H01S3/00

CPC分类号： H04B10/2931 ,  H04B10/077 ,  H04B10/07955 ,  H04B10/291 ,  H04B2210/003

摘要： An optical power monitor for an optical signal having a signal spectrum superimposed on a noise spectrum. Typically, the optical power monitor includes an optical coupler, first and second optical band-pass filters, first and second photodetectors, and an operating unit. The optical coupler branches the optical signal into first and second beams. The first optical band-pass filter has a first pass band including the signal spectrum, and the first beam is supplied to the first optical band-pass filter. The second optical band-pass filter has a second pass band including the signal spectrum and narrower than the first pass band, and the second beam is supplied to the second optical band-pass filter. The first photodetector receives the first beam passed through the first optical band-pass filter, and the second photodetector receives the second beam passed through the second optical band-pass filter. The operating unit calculates the power of the optical signal according to output signals from the first and second photodetectors. Since the first and second optical band-pass filters have different pass bands, the power of the optical signal relating to the signal spectrum can be precisely monitored with no effects of the noise spectrum.

摘要翻译： 一种用于具有叠加在噪声谱上的信号频谱的光信号的光功率监视器。 通常，光功率监视器包括光耦合器，第一和第二光学带通滤波器，第一和第二光电检测器以及操作单元。 光耦合器将光信号分支到第一和第二光束。 第一光学带通滤波器具有包括信号频谱的第一通带，并且第一光束被提供给第一光学带通滤波器。 第二光学带通滤波器具有包括信号频谱并且窄于第一通带的第二通频带，并且第二波束被提供给第二光学带通滤波器。 第一光电检测器接收通过第一光学带通滤波器的第一光束，并且第二光电检测器接收通过第二光学带通滤波器的第二光束。 操作单元根据来自第一和第二光电检测器的输出信号计算光信号的功率。 由于第一和第二光学带通滤波器具有不同的通带，所以可以在没有噪声谱的影响的情况下精确地监视与信号频谱相关的光信号的功率。