公开(公告)号：US20060188262A1

公开(公告)日：2006-08-24

申请号：US11141470

申请日：2005-06-01

申请人： Mamoru Suematsu ,  Akira Yamamoto ,  Haruki Tanaka ,  Hideaki Sugiya ,  Yuki Murakami ,  Hisayuki Ojima

发明人： Mamoru Suematsu ,  Akira Yamamoto ,  Haruki Tanaka ,  Hideaki Sugiya ,  Yuki Murakami ,  Hisayuki Ojima

IPC分类号： H04B10/12

CPC分类号： H04B10/25133 ,  H04B10/077

摘要： An optical transmission system is provided which is capable of booting the system by using an ASE (Amplified Spontaneous Emission) light in a manner to provide high quality. A pre-amplifier receives noise light and does gain setting in an amplifier booting mode and receives an optical signal and to amplify the received signal in a working mode. A variable dispersion compensator is placed in a preceding-stage of the pre-amplifier and makes compensation of dispersion of a wavelength occurring when an optical signal propagates through an optical fiber in a variable manner. A switching unit to select, when the noise light passes through the variable dispersion compensator, if a level of the noise light is deviated from a desired level, a bypass route so as to make the noise light not be input to the variable dispersion compensator but be input to the pre-amplifier in an amplifier booting mode according to a switching instruction and to select a passage route so as to make the optical signal, after having been input to the variable dispersion compensator and having undergone dispersion compensation, be input to the pre-amplifier according to the switching instruction in a working mode.

摘要翻译： 提供了一种光传输系统，其能够以提供高质量的方式使用ASE（放大自发发射）光来引导系统。 前置放大器接收噪声光，并以放大器启动模式进行增益设置，并接收光信号并以工作模式放大接收信号。 可变色散补偿器放置在前置放大器的前级中，并且补偿当光信号以可变方式传播通过光纤时出现的波长的色散。 一种开关单元，当噪声光通过可变色散补偿器时，如果噪声光的电平偏离期望的电平，则选择旁路路径，以使得噪声光不被输入到可变色散补偿器，但是 根据切换指令以放大器引导模式输入到前置放大器，并选择通路，以便在输入到可变色散补偿器并经过色散补偿之后使光信号输入到 前置放大器根据切换指令在工作模式下。

公开(公告)号：US07430372B2

公开(公告)日：2008-09-30

申请号：US11141470

申请日：2005-06-01

申请人： Mamoru Suematsu ,  Akira Yamamoto ,  Haruki Tanaka ,  Hideaki Sugiya ,  Yuki Murakami ,  Hisayuki Ojima

发明人： Mamoru Suematsu ,  Akira Yamamoto ,  Haruki Tanaka ,  Hideaki Sugiya ,  Yuki Murakami ,  Hisayuki Ojima

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/25133 ,  H04B10/077

摘要： An optical transmission system is provided which is capable of booting the system by using an ASE (Amplified Spontaneous Emission) light in a manner to provide high quality. A pre-amplifier receives noise light and does gain setting in an amplifier booting mode and receives an optical signal and to amplify the received signal in a working mode. A variable dispersion compensator is placed in a preceding-stage of the pre-amplifier and makes compensation of dispersion of a wavelength occurring when an optical signal propagates through an optical fiber in a variable manner. A switching unit to select, when the noise light passes through the variable dispersion compensator, if a level of the noise light is deviated from a desired level, a bypass route so as to make the noise light not be input to the variable dispersion compensator but be input to the pre-amplifier in an amplifier booting mode according to a switching instruction and to select a passage route so as to make the optical signal, after having been input to the variable dispersion compensator and having undergone dispersion compensation, be input to the pre-amplifier according to the switching instruction in a working mode.

摘要翻译： 提供了一种光传输系统，其能够以提供高质量的方式使用ASE（放大自发发射）光来引导系统。 前置放大器接收噪声光，并以放大器启动模式进行增益设置，并接收光信号并以工作模式放大接收信号。 可变色散补偿器放置在前置放大器的前级中，并且补偿当光信号以可变方式传播通过光纤时出现的波长的色散。 一种开关单元，当噪声光通过可变色散补偿器时，如果噪声光的电平偏离期望的电平，则选择旁路路径，以使得噪声光不被输入到可变色散补偿器，但是 根据切换指令以放大器引导模式输入到前置放大器，并选择通路，以便在输入到可变色散补偿器并经过色散补偿之后使光信号输入到 前置放大器根据切换指令在工作模式下。

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：US07466478B2

公开(公告)日：2008-12-16

申请号：US11079426

申请日：2005-03-15

申请人： Takuji Maeda ,  Haruki Tanaka ,  Hisayuki Ojima ,  Hiroaki Tomofuji ,  Hideaki Sugiya ,  Koji Batou

发明人： Takuji Maeda ,  Haruki Tanaka ,  Hisayuki Ojima ,  Hiroaki Tomofuji ,  Hideaki Sugiya ,  Koji Batou

IPC分类号： H04B10/17

CPC分类号： H04J14/0297 ,  H04B10/296 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0291 ,  H04J14/0295

摘要： An optical-level control apparatus includes a plurality of variable optical attenuators each used for attenuating an input optical signal included in a wavelength division multiplexing signal as a component having a specific wavelength by applying a variable attenuation quantity, a plurality of control units each used for executing automatic control for automatically controlling the attenuation quantity in order to adjust the optical level of an optical signal output by a corresponding one of the variable optical attenuators to a target level in an ordinary normal state of the input optical signal, and a detection unit for detecting a loss of light failure of an optical signal input to each of the variable optical attenuators and detecting disappearance of the loss of light failure. When the detection unit detects the loss of light failure, a corresponding one of the control units executes first attenuation quantity locking control to adjust the attenuation quantity to a first predetermined value and as the detection unit detects the disappearance of the loss of light, the corresponding control unit executes second attenuation quantity locking control to adjust the attenuation quantity to a second predetermined value.

摘要翻译： 光学级控制装置包括多个可变光衰减器，每个可变光衰减器用于通过施加可变衰减量来衰减包括在波分复用信号中的输入光信号作为具有特定波长的分量;多个控制单元，每个用于 执行用于自动控制衰减量的自动控制，以便在输入光信号的普通正常状态下将由相应的一个可变光衰减器输出的光信号的光学电平调整到目标电平;以及检测单元， 检测输入到每个可变光衰减器的光信号的光衰的损失，并检测光故障损失的消失。 当检测单元检测到光损失时，对应的一个控制单元执行第一衰减量锁定控制，以将衰减量调整到第一预定值，并且随着检测单元检测到光损失的消失，相应的 控制单元执行第二衰减量锁定控制以将衰减量调整到第二预定值。

公开(公告)号：US20050168806A1

公开(公告)日：2005-08-04

申请号：US11079426

申请日：2005-03-15

申请人： Takuji Maeda ,  Haruki Tanaka ,  Hisayuki Ojima ,  Hiroaki Tomofuji ,  Hideaki Sugiya ,  Koji Batou

发明人： Takuji Maeda ,  Haruki Tanaka ,  Hisayuki Ojima ,  Hiroaki Tomofuji ,  Hideaki Sugiya ,  Koji Batou

IPC分类号： H01S3/00 ,  H04B10/17 ,  H04J14/02

CPC分类号： H04J14/0297 ,  H04B10/296 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0291 ,  H04J14/0295

摘要： An optical-level control apparatus includes a plurality of variable optical attenuators each used for attenuating an input optical signal included in a wavelength division multiplexing signal as a component having a specific wavelength by applying a variable attenuation quantity, a plurality of control units each used for executing automatic control for automatically controlling the attenuation quantity in order to adjust the optical level of an optical signal output by a corresponding one of the variable optical attenuators to a target level in an ordinary normal state of the input optical signal, and a detection unit for detecting a loss of light failure of an optical signal input to each of the variable optical attenuators and detecting disappearance of the loss of light failure. When the detection unit detects the loss of light failure, a corresponding one of the control units executes first attenuation quantity locking control to adjust the attenuation quantity to a first predetermined value and as the detection unit detects the disappearance of the loss of light, the corresponding control unit executes second attenuation quantity locking control to adjust the attenuation quantity to a second predetermined value.

摘要翻译： 光学级控制装置包括多个可变光衰减器，每个可变光衰减器用于通过施加可变衰减量来衰减包括在波分复用信号中的输入光信号作为具有特定波长的分量;多个控制单元，每个用于 执行用于自动控制衰减量的自动控制，以便在输入光信号的普通正常状态下将由相应的一个可变光衰减器输出的光信号的光学电平调整到目标电平;以及检测单元， 检测输入到每个可变光衰减器的光信号的光衰的损失，并检测光故障损失的消失。 当检测单元检测到光损失时，相应的一个控制单元执行第一衰减量锁定控制，以将衰减量调节到第一预定值，并且当检测单元检测到光损失消失时，对应的 控制单元执行第二衰减量锁定控制以将衰减量调整到第二预定值。

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：US07554720B2

公开(公告)日：2009-06-30

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： H04B10/17 ,  H04B10/12

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：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：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：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。