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    OPTICAL WAVELENGTH MULTIPLEXED TRANSMISSION APPARATUS
    3.
    发明申请
    OPTICAL WAVELENGTH MULTIPLEXED TRANSMISSION APPARATUS 审中-公开
    光波长多路传输装置

    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。

    Optical wavelength multiplexing system, optical wavelength multiplexing method, and computer product
    4.
    发明授权
    Optical wavelength multiplexing system, optical wavelength multiplexing method, and computer product 有权
    光波长复用系统，光波长多路复用法，计算机产品

    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。

    GAIN CONTROL APPARATUS, OPTICAL TRANSMISSION APPARATUS, GAIN CONTROL METHOD FOR OPTICAL AMPLIFIER, AND WAVELENGTH MULTIPLEX OPTICAL TRANSMISSION SYSTEM
    6.
    发明申请
    GAIN CONTROL APPARATUS, OPTICAL TRANSMISSION APPARATUS, GAIN CONTROL METHOD FOR OPTICAL AMPLIFIER, AND WAVELENGTH MULTIPLEX OPTICAL TRANSMISSION SYSTEM 有权
    增益控制装置，光传输装置，光放大器增益控制方法及波长多光传输系统

    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。

    Optical wavelength multiplexing system, optical wavelength multiplexing method, and computer product
    7.
    发明申请
    Optical wavelength multiplexing system, optical wavelength multiplexing method, and computer product 有权
    光波长复用系统，光波长多路复用法，计算机产品

    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。

    Transmission apparatus
    8.
    发明申请
    Transmission apparatus 有权
    传输装置

    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。

    Optical amplifier and an optical amplification method
    10.
    发明授权
    Optical amplifier and an optical amplification method 有权
    光放大器和光放大法

    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。