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71. 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。

72. 发明授权

US06839162B2 Optical amplifying apparatus and optical communication system 有权
标题翻译：光放大装置及光通讯系统
公开(公告)号：US06839162B2
公开(公告)日：2005-01-04
申请号：US09948858
申请日：2001-09-10
申请人： Motoyoshi Sekiya , Hiroaki Tomofuji
发明人： Motoyoshi Sekiya , Hiroaki Tomofuji
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/30 , H04B10/07 , H04B10/2537 , H04B10/2543 , H04B10/29 , H04B10/296 , H04J14/00 , H04J14/02 , H01S3/00
CPC分类号： H04B10/2941 , H01S3/30 , H04B10/2537 , H04B10/2942 , H04B2210/258 , H04J14/0221
摘要： The present invention relates to an optical amplifying apparatus and a complex optical amplifying apparatus which compensate a loss as a function of wavelength of an optical transmission line by a gain as a function of wavelength, and further relates to an optical communication system which includes apparatuses such as an optical transmitting apparatus, an optical repeating apparatus, and an optical receiving apparatus. The above apparatuses and the optical communication system make it possible to broaden a wavelength band and lengthen a transmission distance.
摘要翻译：本发明涉及一种光放大装置和复数光放大装置，其通过作为波长的函数的增益补偿作为光传输线的波长的函数的损耗，并且还涉及一种光通信系统，其包括诸如作为光发送装置，光中继装置和光接收装置。上述装置和光通信系统使得可以扩大波长带并延长传输距离。

73. 发明授权

US06654561B1 Method and apparatus for measuring optical signal-to-noise ratio, and pre-emphasis method and optical communication system each utilizing the method 有权
标题翻译：用于测量光信噪比的方法和装置，以及每个利用该方法的预加重方法和光通信系统
公开(公告)号：US06654561B1
公开(公告)日：2003-11-25
申请号：US09699479
申请日：2000-10-31
申请人： Takafumi Terahara , Takeshi Sakamoto , Hiroaki Tomofuji , Motoyoshi Sekiya , Makoto Murakami , Kazuo Yamane , Hiroshi Onaka
发明人： Takafumi Terahara , Takeshi Sakamoto , Hiroaki Tomofuji , Motoyoshi Sekiya , Makoto Murakami , Kazuo Yamane , Hiroshi Onaka
IPC分类号： H04B1008
CPC分类号： H04B10/07953 , H04B10/0799
摘要： In a method of measuring an optical signal-to-noise ratio according to the present invention, a partial optical signal-to-noise ratio is defined, the partial optical signal-to-noise ratio is calculated from a predetermined physical quantity, the sum of inverse numbers of the partial optical signal-to-noise ratios is calculated, and further an inverse number of the sum is calculated to acquire an optical signal-to-noise ratio. The present invention makes it possible to measure optical SNR without directly measuring ASE in the optical signal. The present invention provides a measuring apparatus, a measuring circuit, a pre-emphasis method, an optical communication system, and a controlling apparatus each utilizing this method.
摘要翻译：在根据本发明的测量光信噪比的方法中，定义部分光信噪比，从预定物理量计算部分光信噪比，总和计算出部分光信噪比的逆数，并且进一步计算和的逆数以获得光信噪比。本发明使得可以在光信号中不直接测量ASE来测量光信噪比。本发明提供一种使用该方法的测量装置，测量电路，预加重方法，光通信系统和控制装置。

74. 发明授权

US06590686B1 Optical transmitter 有权
标题翻译：光发射机
公开(公告)号：US06590686B1
公开(公告)日：2003-07-08
申请号：US09353313
申请日：1999-07-14
申请人： Motoyoshi Sekiya , Tetsuya Kiyonaga , Yoshitaka Shimura
发明人： Motoyoshi Sekiya , Tetsuya Kiyonaga , Yoshitaka Shimura
IPC分类号： H04B1004
CPC分类号： H04B10/572 , H04B10/503 , H04B10/564
摘要： Disclosed herein is an optical transmitter suitable for stabilization of the output power and wavelength of an optical signal. The optical transmitter includes a light source for outputting a light beam, an external modulator for modulating the light beam according to a main signal to thereby output an optical signal, a power monitor for detecting the power of the optical signal output from the external modulator, and a control unit for controlling the light source so that the power detected by the power monitor becomes stable. The light source is controlled according to the power detected on the downstream side of the external modulator, so that the output power of the optical signal to be obtained can be maintained constant with high accuracy irrespective of variations in loss by the external modulator.
摘要翻译：本文公开了一种适于稳定光信号的输出功率和波长的光发射机。光发射机包括用于输出光束的光源，根据主信号调制光束的外部调制器，从而输出光信号;功率监视器，用于检测从外部调制器输出的光信号的功率，以及控制单元，用于控制光源，使得由功率监视器检测的功率变得稳定。根据在外部调制器的下游侧检测到的功率来控制光源，使得要获得的光信号的输出功率可以以高精度保持恒定，而与外部调制器的损耗变化无关。

75. 发明授权

US06483625B2 WDM optical transmission apparatus 失效
标题翻译： WDM光传输设备
公开(公告)号：US06483625B2
公开(公告)日：2002-11-19
申请号：US09998694
申请日：2001-12-03
申请人： Yoshitaka Shimura , Motoyoshi Sekiya , Tetsuya Kiyonaga
发明人： Yoshitaka Shimura , Motoyoshi Sekiya , Tetsuya Kiyonaga
IPC分类号： H04B1004
CPC分类号： H04B10/506 , H01S5/042 , H01S5/0617 , H01S5/06825 , H01S5/06837 , H01S5/0687 , H01S5/1032 , H04B10/564 , H04B10/572
摘要： A WDM optical transmission apparatus of the present invention comprises: a light source (1) for generating light whose wavelength is changed according to the temperature and a drive current; a temperature control section (4) for controlling the temperature of the light source so that a wavelength at the starting of emission of the light source is stabilized in an allowable range of optical output wavelength set in advance; a drive current control section (5) for controlling the drive current applied to the light source according to the allowable range of the optical output wavelength; a wavelength control section (3) for detecting a wavelength of light output from the light source and controlling the temperature of the light source based on the detection result, to lead the optical output wavelength into the vicinity of a predetermined target wavelength; and an operation control section (6) for controlling the start and stop of the control operation of each section at predetermined timing respectively corresponding to the time of optical output generation and the time of optical output stop.
摘要翻译：本发明的WDM光传输装置包括：用于产生根据温度和驱动电流而波长变化的光的光源（1）; 温度控制部分（4），用于控制光源的温度，使得光源发射的波长在预先设定的光输出波长的允许范围内稳定; 驱动电流控制部分（5），用于根据光输出波长的允许范围来控制施加到光源的驱动电流; 用于检测从光源输出的光的波长并根据检测结果控制光源的温度的波长控制部分（3），以将光输出波长引导到预定目标波长附近; 以及操作控制部分（6），用于分别对应于光输出产生时间和光输出停止时间的预定定时控制每个部分的控制操作的开始和停止。

76. 发明授权

US06334004B1 Optical modulator, bias control circuit therefor, and optical transmitter including the optical modulator 失效
标题翻译：光调制器，偏置控制电路和包括光调制器的光发射机
公开(公告)号：US06334004B1
公开(公告)日：2001-12-25
申请号：US09460390
申请日：1999-12-13
申请人： Yoshinori Ohkuma , Motoyoshi Sekiya
发明人： Yoshinori Ohkuma , Motoyoshi Sekiya
IPC分类号： G02F1035
CPC分类号： G02F1/0123 , G02F1/225 , G02F2203/21
摘要： Disclosed herein is an optical modulator including an optical waveguide structure for converting an input beam into first and second output beams, an electrode for applying an electric field to the optical waveguide structure, so as to switch between a first mode where the input beam is converted into the first output beam and a second mode where the input beam is converted into the second output beam, first and second photodetectors for detecting the powers of the first and second output beams, respectively, and a bias circuit for applying a bias to the electrode so that the ratio in output level between the first and second photodetectors becomes constant. With this configuration, an operation point can be stabilized without the need for superimposition of a low-frequency signal, thereby suppressing intersymbol interference.
摘要翻译：本发明公开了一种光调制器，包括用于将输入光束转换为第一和第二输出光束的光波导结构，用于向光波导结构施加电场的电极，以便在输入光束被转换的第一模式之间切换进入第一输出光束和第二模式，其中输入光束被转换成第二输出光束，分别用于检测第一和第二输出光束的光焦度的第一和第二光电检测器和用于向电极施加偏压的偏置电路使得第一和第二光电检测器之间的输出电平的比率变得恒定。利用这种配置，可以稳定操作点而不需要叠加低频信号，从而抑制码间干扰。

77. 发明授权

US6097746A Laser diode protecting circuit 失效
标题翻译：激光二极管保护电路
公开(公告)号：US6097746A
公开(公告)日：2000-08-01
申请号：US41752
申请日：1998-03-13
申请人： Mitsuharu Noda , Motoyoshi Sekiya , Setsuo Misaizu , Tetsuya Kiyonaga
发明人： Mitsuharu Noda , Motoyoshi Sekiya , Setsuo Misaizu , Tetsuya Kiyonaga
IPC分类号： H01S5/042 , H01S5/068 , H01S5/0683 , H01S3/00
CPC分类号： H01S5/06825 , H01S5/06804 , H01S5/0683
摘要： Disclosed is a laser diode protecting circuit adapted to prevent a laser diode from producing an excessive emission when the laser diode is driven at low temperature, thereby assuring that the laser diode will not be damaged or degraded in terms of its characteristic. When the laser diode is started at low temperature, a laser diode protecting circuit has a power monitor circuit for monitoring backward power of the laser diode and a laser diode current limiting circuit for limiting the laser diode current when the backward power becomes equal to the set power. When the laser diode temperature subsequently rises and the backward power falls below the set power, an automatic current control circuit performs automatic current control in such a manner that the laser diode current attains a set current value. Alternatively, a temperature monitor circuit monitors the temperature of the laser diode and the laser diode current limiting circuit limits the laser diode current when the monitored temperature of the laser diode is less than the set temperature. When the laser diode temperature exceeds the set temperature, the automatic current control circuit performs automatic current control in such a manner that the laser diode attains the set current value.
摘要翻译：公开了一种激光二极管保护电路，其适于在激光二极管在低温下被驱动时防止激光二极管产生过多的发射，从而确保激光二极管在其特性方面不会被损坏或劣化。当激光二极管在低温下启动时，激光二极管保护电路具有用于监视激光二极管反向功率的功率监控电路和激光二极管限流电路，用于在反向功率等于设定值时限制激光二极管电流功率。当激光二极管温度随后上升并且反向功率下降到设定功率以下时，自动电流控制电路以激光二极管电流达到设定电流值的方式进行自动电流控制。或者，温度监视电路监测激光二极管的温度，激光二极管限流电路在激光二极管的监视温度小于设定温度时限制激光二极管电流。当激光二极管温度超过设定温度时，自动电流控制电路以激光二极管达到设定电流值的方式进行自动电流控制。

78. 发明授权

US5760937A Optical demultiplexer 失效
标题翻译：光解复用器
公开(公告)号：US5760937A
公开(公告)日：1998-06-02
申请号：US784441
申请日：1997-01-16
申请人： George Ishikawa , Hiroshi Nishimoto , Hiroki Ooi , Motoyoshi Sekiya , Hiroaki Tomofuji
发明人： George Ishikawa , Hiroshi Nishimoto , Hiroki Ooi , Motoyoshi Sekiya , Hiroaki Tomofuji
IPC分类号： H04B10/2507 , H04B10/071 , H04B10/2519 , H04B10/2525 , H04B10/2537 , H04B10/2563 , H04J14/02 , H04J14/08 , H04L7/00 , H04L7/027 , H04L7/033 , H04L7/06 , H04Q11/00 , H04Q11/04
CPC分类号： H04B10/25133 , H04B10/0795 , H04B10/07957 , H04B10/0797 , H04B10/0799 , H04B10/25137 , H04B10/2525 , H04B10/255 , H04B10/2563 , H04B10/66 , H04B10/67 , H04B10/675 , H04J14/086 , H04L7/0037 , H04L7/0075 , H04Q11/0001 , G02F2203/21 , H04B2210/252 , H04B2210/254 , H04J14/02 , H04J14/0298 , H04J14/08 , H04L7/027 , H04L7/06
摘要： An optical demultiplexer comprises a clock regenerating circuit for regenerating a clock signal for each optical signal channel from an optical multiplexed signal. An optical switch separates each optical signal channel from the optical multiplexed signal in accordance with the clock signal regenerated by the clock regenerating circuit. An identification information extraction circuit extracts identification information contained in each optical signal channel separated by the optical switch. A control circuit changes output destinations so that each optical signal channel is output to a designated destination in accordance with the identification information extracted by the identification information extraction circuit. The identification information is appended as identification data to a data signal represented by the optical signal, and the identification information extraction circuit extracts the identification data contained in the data signal reconstructed from each optical signal channel. A signal switching circuit is provided between outputs of the optical switch and output destinations, wherein the control circuit changes output destinations by changing connection relationships in the signal switching circuit between the outputs of the optical switch and the output destinations, for example, by changing the phase of the clock signal supplied to the optical switch.
摘要翻译：光解复用器包括时钟再生电路，用于从光复用信号再生每个光信号通道的时钟信号。根据由时钟再生电路再生的时钟信号，光开关将光信号通道与光复用信号分开。识别信息提取电路提取由光开关分离的每个光信号通道中包含的识别信息。控制电路改变输出目的地，使得根据由识别信息提取电路提取的识别信息将每个光信号信道输出到指定的目的地。识别信息作为识别数据附加到由光信号表示的数据信号，并且识别信息提取电路提取包含在从每个光信号信道重建的数据信号中的识别数据。信号切换电路设置在光开关和输出目的地的输出之间，其中控制电路通过改变光开关输出与输出目的地之间的信号切换电路中的连接关系来改变输出目的地，例如通过改变提供给光开关的时钟信号的相位。

79. 发明授权

US5612807A Optical dispersion compensation method for shifting a zero dispersion wavelength of an optical fiber to compensate for dispersion in an optical system 失效
标题翻译：用于偏移光纤的零色散波长以补偿光学系统中的色散的光色散补偿方法
公开(公告)号：US5612807A
公开(公告)日：1997-03-18
申请号：US425613
申请日：1995-04-20
申请人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Otsuka
发明人： George Ishikawa , Hideyuki Miyata , Hiroshi Onaka , Motoyoshi Sekiya , Kazue Otsuka
IPC分类号： H04J14/00 , G02B6/34 , H04B10/2507 , H04B10/2525 , H04B10/255 , H04B10/2563 , H04B10/299 , H04J14/02 , H04B10/00
CPC分类号： G02B6/29377 , G02B6/4215 , H04B10/25133 , H04B10/2525 , H04B10/25253 , H04B10/255 , H04B10/2563 , H04J14/0224 , H04B2210/252 , H04B2210/254 , H04B2210/258 , H04J14/02
摘要： An optical wavelength multiplex transmission method uses a band around a zero dispersion wavelength of an optical fiber to compensate for waveform degradation, which is produced by a synergetic effect of self phase modulation and chromatic dispersion, to increase transmission distance and transmission rate in optical systems. The optical dispersion compensation method is performed in an optical system including a transmitter, a repeater and a receiver, which collectively transmit and receive optical information along the optical fiber. Light is transmitted within a transmissible band which is defined by an allowable dispersion value determined from a synergetic effect of self phase modulation and group velocity dispersion in the optical fiber. The transmissible band is set on a shorter wavelength side than a shorter wavelength end .lambda..theta.-.DELTA..lambda..theta. or on a longer wavelength side than a longer wavelength end .lambda..theta.+.DELTA..lambda..theta. of the zero-dispersion wavelength deviation range of the optical fiber. The zero dispersion wavelength .DELTA..theta. the optical fiber is shifted to apparently arranged the signal light into the transmissible band to compensate for the dispersion amount of the optical transmission system.
摘要翻译：光波长复用传输方法使用光纤的零色散波长附近的频带来补偿由自相位调制和色散的协同效应产生的波形劣化，以增加光学系统中的传输距离和传输速率。光学色散补偿方法在包括发射机，中继器和接收机的光学系统中执行，该光学系统共同地沿光纤发送和接收光学信息。光在透射带内传输，其由通过光纤中的自相位调制和群速度色散的协同效应确定的容许色散值限定。透射带设置在比较短波长端λθ-ΔTATAθ较短的波长侧，或者在比光纤的零色散波长偏差范围的较长波长端λθ+ΔTATAλθ更长的波长侧。光纤的零色散波长DELTAθ被移位以将信号光明显地布置到透射带中以补偿光传输系统的色散量。

80. 发明授权

US09042739B2 Network management system, repeater, and repeating method 有权
标题翻译：网络管理系统，中继器和重复方法
公开(公告)号：US09042739B2
公开(公告)日：2015-05-26
申请号：US12656895
申请日：2010-02-18
申请人： Motoyoshi Sekiya
发明人： Motoyoshi Sekiya
IPC分类号： H04B10/08 , H04B10/291 , H04J14/02
CPC分类号： H04B10/29 , H04B10/291 , H04J14/0201 , H04J14/0204 , H04J14/0221 , H04J14/0227 , H04J14/0257 , H04J14/026 , H04J14/0275
摘要： A repeater includes a reception part configured to receive an optical signal transmitted by wavelength division multiplexing from a preceding repeater in a path from a source to a destination; a determination part configured to determine the channel allocation of the signal received by the reception part by determining a bit rate and a modulation technique with respect to each of channels in the received signal; and a detection part configured to detect a prohibited channel not to be included in the optical signal to be transmitted from the repeater, based on the channel allocation and a predetermined criterion.
摘要翻译：中继器包括：接收部件，被配置为在从源到目的地的路径中从前一个中继器接收由波分复用发送的光信号; 确定部件，被配置为通过确定相对于接收信号中的每个信道的比特率和调制技术来确定由接收部分接收的信号的信道分配; 以及检测部，其被配置为基于所述信道分配和预定标准来检测不被包括在要从中继器发送的光信号中的禁止信道。

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