公开(公告)号：US07406262B2

公开(公告)日：2008-07-29

申请号：US11082958

申请日：2005-03-18

申请人： Goji Nakagawa ,  Hideyuki Miyata ,  Yutaka Kai ,  Hiroshi Onaka ,  Setsuo Yoshida ,  Kyosuke Sone ,  Tomohiro Ueno

发明人： Goji Nakagawa ,  Hideyuki Miyata ,  Yutaka Kai ,  Hiroshi Onaka ,  Setsuo Yoshida ,  Kyosuke Sone ,  Tomohiro Ueno

IPC分类号： H04J14/02

CPC分类号： H04B10/572 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/022 ,  H04J14/0227

摘要： An optical transmission device improved in quality and reliability of OADM function and permitting configuration of highly-flexible, economical OADM networks. A wavelength tunable filter variably selects a wavelength according to a control frequency. A filter controller applies the control frequency to the filter while scanning wavelength over an entire signal bandwidth, to detect, from a reference wavelength monitor signal supplied thereto, a reference control frequency which permits the filter to select a reference wavelength and according to which wavelength is matched. On receiving a wavelength selection request, the controller obtains a target control frequency from the reference control frequency and the position of a target wavelength relative to the reference wavelength, and applies the obtained frequency to the filter. A reference wavelength filter transmits the reference wavelength therethrough. A light-receiving element monitors the transmitted reference wavelength to generate the monitor signal.

摘要翻译： 一种光传输设备改进了OADM功能的质量和可靠性，并允许配置高度灵活，经济的OADM网络。 波长可调滤波器根据控制频率可变地选择波长。 滤波器控制器在整个信号带宽上扫描波长时将滤波器的控制频率施加到滤波器，从提供给其的参考波长监测信号中检测出允许滤波器选择参考波长的参考控制频率，根据哪个波长是 匹配。 在接收到波长选择请求时，控制器从参考控制频率和目标波长相对于参考波长的位置获得目标控制频率，并将获得的频率应用于滤波器。 参考波长滤波器透过参考波长。 光接收元件监测发射的参考波长以产生监测信号。

公开(公告)号：US07389054B2

公开(公告)日：2008-06-17

申请号：US10464650

申请日：2003-06-19

申请人： Hideyuki Miyata ,  Hiroshi Onaka

发明人： Hideyuki Miyata ,  Hiroshi Onaka

IPC分类号： H04B10/04

CPC分类号： H04B10/50575 ,  G02F2203/20 ,  H04B10/50595 ,  H04B10/572 ,  H04B10/58 ,  H04J14/0201 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0276 ,  H04J14/0283

摘要： The present invention relates to an optical communication apparatus for detecting the intensity of light in an optical modulator or the intensity of a modulation signal and for controlling the operating point of the optical modulator based on the result of detection. In the optical communication apparatus having such a configuration, the operating point of the optical modulator can be kept stable even when the input light or the modulation signal is temporarily non-existent in the optical communication apparatus.

摘要翻译： 本发明涉及一种光通信装置，用于检测光调制器中的光强度或调制信号的强度，并用于根据检测结果控制光调制器的工作点。 在具有这种结构的光通信装置中，即使在光通信装置中临时不存在输入光或调制信号的情况下，光调制器的工作点也能保持稳定。

公开(公告)号：US07362925B2

公开(公告)日：2008-04-22

申请号：US11144607

申请日：2005-06-06

申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

IPC分类号： G02F1/1335

CPC分类号： H04J14/0221 ,  G02F1/0121 ,  G02F2203/585 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/0797

摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

摘要翻译： 本发明旨在提供一种用于高精度地控制光学装置的操作设置的控制方法和控制装置，以便在控制之后立即根据与信号光对应的期望关系可靠地获得特性 开始。 为此，本发明的控制装置包括将输入到光学装置的主信号光的一部分分支的光耦合器，根据与光学装置相同的控制参数进行操作的监视光学装置，以及 处理由光耦合器分支的监视光，接收由监视光学装置处理的监视光的光接收器，检测由光接收器接收的监视光之间的关系的检测电路以及光接收器的波长或光功率 信号灯，以及控制电路，其根据由检测电路检测到的关系调整光学装置的控制参数以控制操作设置，使得光学装置的特性变得能够实现与 信号灯。

公开(公告)号：US06934433B2

公开(公告)日：2005-08-23

申请号：US10106315

申请日：2002-03-27

申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

IPC分类号： G02B6/30 ,  G02B5/30 ,  G02B6/12 ,  G02B6/122 ,  G02F1/01 ,  G02F1/11 ,  G02F1/125 ,  G02F1/31 ,  H04J14/02 ,  G02B6/26

CPC分类号： H04J14/0221 ,  G02F1/0121 ,  G02F2203/585 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/0797

摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

摘要翻译： 本发明旨在提供一种用于高精度地控制光学装置的操作设置的控制方法和控制装置，以便在控制之后立即根据与信号光对应的期望关系可靠地获得特性 开始。 为此，本发明的控制装置包括将输入到光学装置的主信号光的一部分分支的光耦合器，根据与光学装置相同的控制参数进行操作的监视光学装置，以及 处理由光耦合器分支的监视光，接收由监视光学装置处理的监视光的光接收器，检测由光接收器接收的监视光之间的关系的检测电路以及光接收器的波长或光功率 信号灯，以及控制电路，其根据由检测电路检测到的关系调整光学装置的控制参数以控制操作设置，使得光学装置的特性变得能够实现与 信号灯。

公开(公告)号：US6067187A

公开(公告)日：2000-05-23

申请号：US754843

申请日：1996-11-22

申请人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka

发明人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka

IPC分类号： H01S3/094 ,  H01S3/131 ,  H04B10/07 ,  H04B10/25 ,  H04B10/29 ,  H04B10/294 ,  H04J14/00 ,  H04J14/02 ,  H04B10/00 ,  G02B6/22 ,  H01S3/30

CPC分类号： H04B10/296 ,  H01S3/06754 ,  H01S3/10007 ,  H04B10/291 ,  H04B10/2912 ,  H04B10/2931 ,  H04B10/2942 ,  H04J14/0221 ,  H01S2301/04 ,  H01S3/094003 ,  H01S3/10015 ,  H01S3/1301

摘要： An optical amplifier has an optical amplifying medium, a pump light source outputting pump light, and a first optical coupler for supplying the pump light to the optical amplifying medium. A probe light source outputs probe light having a wavelength included in an amplification band, a second optical coupler supplies the probe light to the optical amplifying medium, and detectors detect the powers of input signal light and the probe light, respectively. A control unit controls the power of the probe light according to outputs from the detectors. This structure makes it possible to provide an optical amplifier which can reduce the wavelength dependence of gain.

摘要翻译： 光放大器具有光放大介质，输出泵浦光的泵浦光源和用于将泵浦光提供给光放大介质的第一光耦合器。 探测光源输出具有包括在放大频带中的波长的探测光，第二光耦合器将探测光提供给光放大介质，检测器分别检测输入信号光和探测光的功率。 控制单元根据检测器的输出来控制探测光的功率。 这种结构使得可以提供可以降低增益的波长依赖性的光放大器。

公开(公告)号：US5894362A

公开(公告)日：1999-04-13

申请号：US699563

申请日：1996-08-19

申请人： Hiroshi Onaka ,  Kazue Otsuka ,  Hideyuki Miyata

发明人： Hiroshi Onaka ,  Kazue Otsuka ,  Hideyuki Miyata

IPC分类号： G01J3/28 ,  G02F1/35 ,  H04B10/07 ,  H04B10/077 ,  H04B10/079 ,  H04B10/294 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0221 ,  H04B10/077 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/07955 ,  H04B10/07957 ,  H04B10/0799 ,  H04B10/506 ,  H04B10/564 ,  H04B10/572 ,  H04J14/0297 ,  H04J14/0284

摘要： An optical communication system for transmitting wavelength division multiplexed (WDM) signal light through an optical fiber. The optical communication system includes a decoupling unit and a monitoring unit. The decoupling unit decouples a portion of the WDM signal light from the optical fiber as a monitoring signal. The monitoring unit determines the spectrum of the WDM signal light from the monitoring signal and performs control processing in accordance with the determined spectrum. Control processing includes performing at least one of the following: (1) controlling light sources to maintain a constant wavelength of each light signal in the WDM signal light, (b) determining a noise figure of an optical amplifier which amplifies the WDM signal light, (c) controlling the optical amplifier to achieve a desired noise figure, (d) detecting a signal-to-noise ratio of the WDM signal light, (e) detecting a true signal power of the WDM signal light, (f) maintaining the true signal power to be at a constant level, (g) counting the number of channels in the WDM signal light, (h) equalizing the gain of an optical amplifier to maintain a flat gain, (i) selecting a light source from among redundant light sources for providing a light signal on a respective channel of the WDM signal light, or (j) selecting a respective channel of the WDM signal light for signal enhancement.

摘要翻译： 一种用于通过光纤传输波分复用（WDM）信号光的光通信系统。 光通信系统包括去耦单元和监视单元。 解耦单元将来自光纤的WDM信号光的一部分作为监测信号去耦。 监视单元根据监视信号确定WDM信号光的频谱，并根据所确定的频谱执行控制处理。 控制处理包括执行以下中的至少一个：（1）控制光源以维持WDM信号光中每个光信号的恒定波长，（b）确定放大WDM信号光的光放大器的噪声系数， （c）控制光放大器以获得所需的噪声系数，（d）检测WDM信号光的信噪比，（e）检测WDM信号光的真实信号功率，（f） （g）对WDM信号光中的通道数进行计数，（h）使光放大器的增益均衡以保持平坦的增益，（i）从冗余中选择光源 用于在WDM信号光的相应通道上提供光信号的光源，或（j）选择用于信号增强的WDM信号光的相应通道。

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。

公开(公告)号：US5469288A

公开(公告)日：1995-11-21

申请号：US125742

申请日：1993-09-24

申请人： Hiroshi Onaka ,  Hideyuki Miyata

发明人： Hiroshi Onaka ,  Hideyuki Miyata

IPC分类号： G02B6/00 ,  G02B6/293 ,  G02B6/34 ,  H04B10/07 ,  H04B10/27 ,  H04B10/29 ,  H04J14/00 ,  H04J14/02 ,  H04B10/06

CPC分类号： G02B6/29395 ,  G02B6/29358 ,  G02B6/29361 ,  G02B6/4215 ,  H04B10/675 ,  H04J14/02 ,  G02B6/29398

摘要： An optical filter selectively receives a signal of a desired optical frequency from a plurality of optical-frequency-division multiplexing signals. Additionally, a transmission wavelength of the optical filter can be controlled using an optical receiver which includes the optical filter. The optical filter can perform a narrow-band optical filtering and permit, in optical communication systems using the optical filter, the transmission wavelength range of the optical filter to follow up a change in the wavelength of a light source. The optical filter selectively receives a signal of a desired optical frequency from a plurality of optical frequency-multiplexed signals. Additionally, the optical filter includes a first optical filter having a transmission band characteristic with a single peak in a desired band and a half band width of a desired amount of attenuation in the transmission band equal to or smaller than about two times a channel interval of the multiplexed light signals. A second optical filter, also in the optical filter, has a periodic transmission characteristic, an odd multiplication of a half of a free spectral range of the periodic transmission characteristic being equivalent to the channel interval of the multiplexed signals. The transmission band of the first optical filter matches with a transmission peak of the second optical filter.

摘要翻译： 光滤波器从多个光分频复用信号中选择性地接收期望光频率的信号。 此外，可以使用包括滤光器的光接收器来控制滤光器的透射波长。 光滤波器可以进行窄带光学滤波，并且允许在使用滤光器的光通信系统中，滤光器的透射波长范围跟随光源的波长的变化。 滤光器从多个光频率复用信号中选择性地接收期望光频率的信号。 另外，光滤波器包括具有在期望频带中具有单个峰值的传输频带特性的传输频带的第一滤光器以及传输频带中所需衰减量的半带宽等于或小于通道间隔的两倍 复用的光信号。 光滤波器中的第二滤光器具有周期性的传输特性，周期性传输特性的自由光谱范围的一半的奇数乘法等效于多路复用信号的信道间隔。 第一滤光器的透射频带与第二滤光器的透射峰匹配。

公开(公告)号：US5200967A

公开(公告)日：1993-04-06

申请号：US763513

申请日：1991-09-20

申请人： Hideyuki Miyata ,  Hiroshi Onaka

发明人： Hideyuki Miyata ,  Hiroshi Onaka

IPC分类号： G01J9/02 ,  H01S5/00 ,  H01S5/062 ,  H01S5/0687

CPC分类号： H01S5/0687 ,  G01J9/02 ,  H01S5/0014 ,  H01S5/0622

摘要： The operating point is stabilized at the MAX or the MIN of its optical frequency discriminating characteristic. Under the stabilized operating point, the detected difference between the average of the light intensity and a set value is fed back to a data modulator so that the average value converges on a set value when a predetermined optical frequency deviation is produced. The operating point is also stabilized at the MED of said characteristic. Under the stabilized operating point, a low-frequency signal component is extracted from an electric signal output by means of synchronous detection. The operating point is stabilized at the MAX or the MIN of said characteristic. Under the stabilized operating point, a low-frequency signal component is twice in frequency by means of synchronous detection. In the fourth and fifth aspects, means such as synchronous detection is not required for the stabilization control of an operating point.

公开(公告)号：US07853147B2

公开(公告)日：2010-12-14

申请号：US11145918

申请日：2005-06-07

申请人： Toshiki Tanaka ,  Yasuhiko Aoki ,  Hideyuki Miyata ,  Takao Naito ,  Kouichiro Amemiya

发明人： Toshiki Tanaka ,  Yasuhiko Aoki ,  Hideyuki Miyata ,  Takao Naito ,  Kouichiro Amemiya

IPC分类号： H04J14/02 ,  H04J14/00 ,  H04B10/20

CPC分类号： H04Q11/0062 ,  H04Q2011/009

摘要： The present invention provides an information processing system, comprising a plurality of calculation nodes with an optical transmitter, which individually outputs a plurality of optical signals each having a different wavelength, and an optical receiver, which individually receives a plurality of optical signals each having a different wavelength, an optical transmission path connecting a plurality of the calculation nodes to each other, and optical pathway switching unit, lying in the optical transmission path, for transmitting the optical signal to the specific calculation node in accordance with a wavelength of the optical signal output from one of the calculation nodes.

摘要翻译： 本发明提供了一种信息处理系统，包括多个具有单独输出多个具有不同波长的光信号的光发送器的计算节点，以及光接收器，其分别接收多个光信号，每个光信号具有 不同的波长，连接多个计算节点的光传输路径和位于光传输路径中的光路径切换单元，用于根据光信号的波长将光信号发送到特定的计算节点 从其中一个计算节点输出。