公开(公告)号：US20100129079A1

公开(公告)日：2010-05-27

申请号：US12612264

申请日：2009-11-04

申请人： Koji Bato ,  Hideaki Sugiya ,  Ichiro Nakajima

发明人： Koji Bato ,  Hideaki Sugiya ,  Ichiro Nakajima

IPC分类号： H04J14/02

CPC分类号： H04J14/0221 ,  H04B10/506

摘要： An optical WDM transmission apparatus includes plural optical attenuators that respectively attenuate the power of optical signals separated according to wavelength; plural first optical receivers that respectively detect the power of the attenuated optical signals; a multiplexer that multiplexes the optical signals; a second optical receiver that detects the power of the multiplexed optical signal; and a monitoring control unit that includes a first control system that controls the optical attenuators so that the powers detected at the first optical receivers respectively become target values, and a second control system that, based on the power detected by the second optical receiver and information concerning the number of wavelengths corresponding to the optical signals input, controls the optical attenuators so that the powers of the optical signals respectively become the target values.

摘要翻译： 光WDM传输装置包括分别衰减根据波长分离的光信号的功率的多个光衰减器; 分别检测衰减的光信号的功率的多个第一光接收机; 多路复用器，用于复用光信号; 检测复用光信号的功率的第二光接收器; 以及监视控制单元，其包括：第一控制系统，其控制所述光衰减器，使得在所述第一光接收器处检测到的功率分别成为目标值;以及第二控制系统，其基于由所述第二光接收器检测到的功率和信息 关于与光信号输入对应的波长的数量，控制光衰减器，使得光信号的功率分别成为目标值。

公开(公告)号：US20070047960A1

公开(公告)日：2007-03-01

申请号：US11349180

申请日：2006-02-08

申请人： Takeshi Noma ,  Akira Yamamoto ,  Katsumi Sugawa ,  Hisayuki Ojima ,  Haruki Tanaka ,  Hideaki Sugiya ,  Koji Bato

发明人： Takeshi Noma ,  Akira Yamamoto ,  Katsumi Sugawa ,  Hisayuki Ojima ,  Haruki Tanaka ,  Hideaki Sugiya ,  Koji Bato

IPC分类号： H04J14/02

CPC分类号： H04J14/0221 ,  H04B2210/258

摘要： A method for an intermediate node to control a level of a signal included in a wavelength-multiplexed signal and transmitted from a source node to a destination node via the intermediate node, includes: detecting a level of the signal; identifying a position of the intermediate node with respect to the source node; determining a control time based on the position; controlling, when the control time has elapsed from the detecting, a level of the signal based on the level detected at the detecting.

摘要翻译： 一种用于中间节点控制包括在波分复用信号中并经由中间节点从源节点传送到目的地节点的信号的电平的方法包括：检测信号的电平; 识别中间节点相对于源节点的位置; 基于所述位置确定控制时间; 当从检测出现控制时间时，控制基于在检测时检测到的电平的信号电平。

公开(公告)号：US08331787B2

公开(公告)日：2012-12-11

申请号：US12385071

申请日：2009-03-30

申请人： Takeshi Noma ,  Haruki Tanaka ,  Yoshikazu Nakanishi ,  Makoto Ohtou ,  Hideaki Sugiya ,  Ichiro Nakajima ,  Toshihiro Suzuki

发明人： Takeshi Noma ,  Haruki Tanaka ,  Yoshikazu Nakanishi ,  Makoto Ohtou ,  Hideaki Sugiya ,  Ichiro Nakajima ,  Toshihiro Suzuki

IPC分类号： H04J14/02 ,  H04J14/00 ,  H04B10/04

CPC分类号： H04J14/02 ,  H04J14/0221

摘要： Even during a protection period in which a state transition is not caused from an ALC state to an ALD state, when an output light level that is inputted is below a threshold for ALC transition read from a memory, a processor causes a transition by switching an internal state from an ALC state to an ALD state. Then, an ALD operation is started, outputting a control voltage to a VAT control unit so as to achieve a predetermined fixed attenuation amount.

摘要翻译： 即使在从ALC状态到ALD状态不发生状态转换的保护期间，当输入的输出光电平低于从存储器读取的ALC转换的阈值时，处理器通过切换 内部状态从ALC状态到ALD状态。 然后，ALD操作开始，向VAT控制单元输出控制电压，以达到预定的固定衰减量。

公开(公告)号：US20110081146A1

公开(公告)日：2011-04-07

申请号：US12897274

申请日：2010-10-04

申请人： Ichiro NAKAJIMA ,  Hideaki Sugiya

发明人： Ichiro NAKAJIMA ,  Hideaki Sugiya

IPC分类号： H04J14/00

CPC分类号： H04J14/0221 ,  H04J14/0204 ,  H04J14/0212

摘要： An optical monitor device includes a band pass filter configured to transmit a light of a band of a first input light, an optical switch configured to select between a second input light and the first input light transmitted through the band pass filter based on a switch signal, and output the selected light, a tunable filter configured to input a selected light from the optical switch and to transmit a specified wavelength based on a drive signal, a photodetector configured to output an electric signal according to a power level of transmitted light from the tunable filter, and a control unit configured to output the switch signal and the drive signal based on the electric signal.

摘要翻译： 一种光学监测装置，包括：带通滤波器，被配置为透射第一输入光的波段的光;光开关，被配置为基于开关信号在第二输入光与透过带通滤波器的第一输入光之间进行选择 并输出所选择的光，可调谐滤波器，被配置为从光开关输入所选择的光并基于驱动信号发送指定波长;光电检测器，被配置为根据来自所述光开关的透射光的功率电平输出电信号; 可调谐滤波器以及配置为基于电信号输出开关信号和驱动信号的控制单元。

公开(公告)号：US08195052B2

公开(公告)日：2012-06-05

申请号：US12000015

申请日：2007-12-06

申请人： Makoto Ohtou ,  Akira Yamamoto ,  Tatsuo Nagayoshi ,  Katsumi Sugawa ,  Hideaki Sugiya

发明人： Makoto Ohtou ,  Akira Yamamoto ,  Tatsuo Nagayoshi ,  Katsumi Sugawa ,  Hideaki Sugiya

IPC分类号： H04B10/08 ,  G02B6/12 ,  H04B10/16 ,  H04B10/04

CPC分类号： H04J14/0227 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/0279

摘要： An optical wavelength multiplexing system includes transmission-side and reception-side optical wavelength multiplexers, and terminal devices, which are connected to each other by optical fiber cables. Optical wavelength converters in the transmission-side optical wavelength multiplexers are connected to ports respectively. The optical wavelength converter converts an input optical signal into an arbitrary preset wavelength to generate a converted optical signal. The port has a predetermined wavelength preset therein. Each optical power level of input converted optical signals is compared with each optical power level of optical signals of respective wavelengths set in the ports. When a difference is detected in the comparison result, it is determined that an optical wavelength converter is incorrectly connected to the port.

摘要翻译： 光波长复用系统包括通过光纤电缆彼此连接的发送侧和接收端光波分复用器以及终端设备。 发射侧光波分复用器中的光波长转换器分别连接到端口。 光波长转换器将输入光信号转换成任意的预设波长以产生转换的光信号。 端口具有预定的预定波长。 将输入转换的光信号的每个光功率电平与在端口中设置的各个波长的光信号的每个光功率电平进行比较。 当在比较结果中检测到差异时，确定光学波长转换器不正确地连接到端口。

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：US20080138074A1

公开(公告)日：2008-06-12

申请号：US12000015

申请日：2007-12-06

申请人： Makoto Ohtou ,  Akira Yamamoto ,  Tatsuo Nagayoshi ,  Katsumi Sugawa ,  Hideaki Sugiya

发明人： Makoto Ohtou ,  Akira Yamamoto ,  Tatsuo Nagayoshi ,  Katsumi Sugawa ,  Hideaki Sugiya

IPC分类号： H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/0279

摘要： An optical wavelength multiplexing system includes transmission-side and reception-side optical wavelength multiplexers, and terminal devices, which are connected to each other by optical fiber cables. Optical wavelength converters in the transmission-side optical wavelength multiplexers are connected to ports respectively. The optical wavelength converter converts an input optical signal into an arbitrary preset wavelength to generate a converted optical signal. The port has a predetermined wavelength preset therein. Each optical power level of input converted optical signals is compared with each optical power level of optical signals of respective wavelengths set in the ports. When a difference is detected in the comparison result, it is determined that an optical wavelength converter is incorrectly connected to the port.

摘要翻译： 光波长复用系统包括通过光纤电缆彼此连接的发送侧和接收端光波分复用器以及终端设备。 发射侧光波分复用器中的光波长转换器分别连接到端口。 光波长转换器将输入光信号转换成任意的预设波长以产生转换的光信号。 端口具有预定的预定波长。 将输入转换的光信号的每个光功率电平与在端口中设置的各个波长的光信号的每个光功率电平进行比较。 当在比较结果中检测到差异时，确定光学波长转换器不正确地连接到端口。

公开(公告)号：US20070121195A1

公开(公告)日：2007-05-31

申请号：US11407170

申请日：2006-04-20

申请人： Yuki Murakami ,  Hideaki Sugiya ,  Akira Yamamoto

发明人： Yuki Murakami ,  Hideaki Sugiya ,  Akira Yamamoto

IPC分类号： H01S3/00

CPC分类号： H04B10/0797

摘要： A transmission apparatus designed to be capable of monitoring faults which occur between the input stage of an optical multiplexer and the input stage of an optical amplifier, appropriately switching between automatic gain control and automatic level control, and outputting signal lights with appropriate optical power, without using a spectrum analyzer. The optical multiplexer combines the wavelengths of a plurality of signal lights. The optical amplifier is connected at the latter stage of the optical multiplexer, and operates in the automatic gain control mode or in the automatic level control mode, the automatic gain control mode maintaining a constant gain for wavelength-multiplexed signal light, the automatic level control mode maintaining constant output power for the wavelength-multiplexed signal light. A mode selector selects the automatic gain control mode or the automatic level control mode for the optical amplifier based on the total optical power of the plurality of signal lights to be input to the optical multiplexer and the optical power of the wavelength-multiplexed signal light to be input to the optical amplifier.

摘要翻译： 一种发送装置，被设计为能够监视在光复用器的输入级与光放大器的输入级之间出现的故障，适当地切换自动增益控制和自动电平控制，并以适当的光功率输出信号灯，而不需要 使用频谱分析仪。 光复用器组合多个信号光的波长。 光放大器在光复用器的后级连接，以自动增益控制模式或自动电平控制模式工作，自动增益控制模式保持波长复用信号光的恒定增益，自动电平控制 模式保持波长复用信号光的恒定输出功率。 模式选择器基于要输入到光复用器的多个信号光的总光功率和波分复用信号光的光功率，选择光放大器的自动增益控制模式或自动电平控制模式 输入到光放大器。

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。