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。

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。

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。

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。

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：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。

公开(公告)号：US08977137B2

公开(公告)日：2015-03-10

申请号：US13552252

申请日：2012-07-18

申请人： Olga Vassilieva ,  Inwoong Kim ,  Motoyoshi Sekiya

发明人： Olga Vassilieva ,  Inwoong Kim ,  Motoyoshi Sekiya

IPC分类号： H04B10/06

CPC分类号： H04B10/0795 ,  H04B10/2572 ,  H04B10/532

摘要： An apparatus including a polarization controller is described. The polarizer controller is communicatively coupled via a feedback loop to an evaluation module located near an optical receiver. The evaluation module is configured to measure polarization dependent loss (PDL) of an optical signal received at the optical receiver. The polarization controller is configured to receive feedback control data regarding the PDL from the evaluation module. Additionally, the polarization controller is configured to modify a state of polarization of the optical signal at an optical transmitter, which is communicatively coupled to the optical receiver, based on the feedback control data.

摘要翻译： 描述了包括偏振控制器的装置。 偏振器控制器经由反馈回路通信耦合到位于光接收器附近的评估模块。 评估模块被配置为测量在光接收器处接收的光信号的偏振相关损耗（PDL）。 偏振控制器被配置为从评估模块接收关于PDL的反馈控制数据。 另外，偏振控制器被配置为基于反馈控制数据来修改在光发射器处的光信号的偏振状态，光发射器通信地耦合到光接收器。

公开(公告)号：US08909049B2

公开(公告)日：2014-12-09

申请号：US13175154

申请日：2011-07-01

申请人： Xi Wang ,  Qiong Zhang ,  Inwoong Kim ,  Paparao Palacharla ,  Motoyoshi Sekiya

发明人： Xi Wang ,  Qiong Zhang ,  Inwoong Kim ,  Paparao Palacharla ,  Motoyoshi Sekiya

IPC分类号： H04B10/00 ,  H04J14/02

CPC分类号： H04J14/026 ,  H04J14/0224 ,  H04J14/0257

摘要： In accordance with embodiments of the present disclosure, a method may include determining individual spectrum requirements for each of a plurality of signals to be communicated in an optical network, wherein a first signal of the plurality of signals has a first spectrum requirement and a second signal of the plurality of signals has a second spectrum requirement. The method may also include calculating a minimum spectrum granularity based on the individual spectrum requirements. The method may further include assigning each particular signal a channel spectrum equal to an integer multiple of the minimum spectrum granularity.

摘要翻译： 根据本公开的实施例，一种方法可以包括确定要在光网络中传送的多个信号中的每个信号的各个频谱要求，其中多个信号中的第一信号具有第一频谱要求和第二信号 的多个信号具有第二频谱要求。 该方法还可以包括基于各个频谱要求来计算最小频谱粒度。 该方法还可以包括将每个特定信号分配为等于最小频谱粒度的整数倍的信道频谱。

公开(公告)号：US08848176B2

公开(公告)日：2014-09-30

申请号：US13207796

申请日：2011-08-11

申请人： Motoyoshi Sekiya ,  Yusaku Yamamoto

发明人： Motoyoshi Sekiya ,  Yusaku Yamamoto

IPC分类号： G01N21/00 ,  H04B10/077

CPC分类号： H04B10/0775

摘要： A dispersion measurement apparatus includes: a pulse generator to output optical pulses including an optical pulse with a first wavelength and an optical pulse with a second wavelength to an optical transmission path, the second wavelength being different from the first wavelength; a reception pulse analyzer including an optical receiver that receives the optical pulses output by the pulse generator, and an analyzer that performs a wavelet transform on an electrical pulse output through the reception performed by the optical receiver; and a calculator to detect, based on a result of the wavelet transform, a time difference between the optical pulse with the first wavelength and the optical pulse with the second wavelength, and to determine dispersion in the optical transmission path.

摘要翻译： 一种色散测量装置包括：脉冲发生器，其将包括具有第一波长的光脉冲和具有第二波长的光脉冲的光脉冲输出到光传输路径，所述第二波长不同于所述第一波长; 接收脉冲分析器，包括接收由脉冲发生器输出的光脉冲的光接收器，以及分析器，对通过光接收机进行的接收输出的电脉冲进行小波变换; 以及计算器，用于基于小波变换的结果检测具有第一波长的光脉冲与具有第二波长的光脉冲之间的时间差，并确定光传输路径中的色散。

公开(公告)号：US08761600B2

公开(公告)日：2014-06-24

申请号：US13620172

申请日：2012-09-14

申请人： Inwoong Kim ,  Olga Vassilieva ,  Paparao Palacharla ,  Motoyoshi Sekiya

发明人： Inwoong Kim ,  Olga Vassilieva ,  Paparao Palacharla ,  Motoyoshi Sekiya

IPC分类号： H04B10/07 ,  H04B10/50

CPC分类号： H04B10/532 ,  H04B2210/074

摘要： According to an aspect of an embodiment, a method of modulating supervisory data onto an optical signal includes receiving supervisory data and adjusting a characteristic of a carrier of the optical signal for at least one of a first polarization component of the optical signal and a second polarization component of the optical signal based on the received supervisory data. The characteristic may be adjusted such that there is a relative difference between the characteristic for the first polarization component and the second polarization component. The relative difference of the characteristic between the first polarization component and the second polarization component may indicate the supervisory data. Alternately, the characteristic may be adjusted such that there is a change in a polarization orientation of the carrier on a Poincaré sphere that indicates the supervisory data.

摘要翻译： 根据实施例的一个方面，一种将监控数据调制到光信号上的方法包括接收监控数据，并调整光信号的第一偏振分量和第二偏振中的至少一个的光信号的载波的特性 基于所接收的监视数据的光信号的分量。 可以调整特性，使得在第一偏振分量和第二偏振分量的特性之间存在相对差。 第一偏振分量和第二偏振分量之间的特性的相对差异可以指示监控数据。 或者，可以调整特性，使得在Poincaré球体上的载体的偏振取向有变化，指示监控数据。