公开(公告)号：US06763197B1

公开(公告)日：2004-07-13

申请号：US09588412

申请日：2000-06-06

申请人： Akira Hirano ,  Kazushige Yonenaga ,  Yutaka Miyamoto ,  Kenji Sato ,  Masaki Asobe

发明人： Akira Hirano ,  Kazushige Yonenaga ,  Yutaka Miyamoto ,  Kenji Sato ,  Masaki Asobe

IPC分类号： H04B1004

CPC分类号： H04L7/0075 ,  H04J14/08 ,  H04L25/4906

摘要： An optical transmitter for realizing a high tolerance with respect to the group velocity dispersion of the optical fibers, a small receiver sensitivity degradation, and an improved stability that is hardly affected by the group velocity dispersion even in the case of network scale expansion, is constructed by a light source section for generating optical clock pulses synchronized with a signal bit rate while maintaining a duty ratio of the optical clock pulses constant, which is capable of variably setting the duty ratio, and an encoding section for encoding the optical clock pulses by using electric signals synchronized with the optical clock pulses while setting a relative optical phase difference between the optical clock pulses in adjacent time-slots to be an odd integer multiple of &pgr;.

摘要翻译： 构造光传输器，即使在网络规模扩展的情况下，也能够实现相对于光纤的群速度色散的高容差，小的接收机灵敏度劣化，几乎不受群速分散影响的改善的稳定性 通过光源部分，用于产生与信号比特率同步的光时钟脉冲，同时保持能够可变地设置占空比的光时钟脉冲的占空比恒定;以及编码部分，用于通过使用 电信号与光时钟脉冲同步，同时将相邻时隙中的光时钟脉冲之间的相对光相位差设置为pi的奇整数倍。

公开(公告)号：US06865348B2

公开(公告)日：2005-03-08

申请号：US09793954

申请日：2001-02-28

申请人： Yutaka Miyamoto ,  Akira Hirano ,  Kazushige Yonenaga ,  Kenji Sato ,  Hiromu Toba ,  Akihiko Matsuura

发明人： Yutaka Miyamoto ,  Akira Hirano ,  Kazushige Yonenaga ,  Kenji Sato ,  Hiromu Toba ,  Akihiko Matsuura

IPC分类号： H04B10/50 ,  H04B10/508 ,  H04B10/04 ,  H04B10/12

CPC分类号： H04B10/5055 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/508

摘要： A system which improves wavelength tolerance, compensates dispersion in a simple way, reduces limitation of the fiber input power is disclosed. The operation includes receiving a clock signal from a system clock source; modulating a single mode optical signal based on the clock signal and generating an optical pulse signal having two longitudinal modes, the frequency interval thereof being n×B, n being a natural number and B being a transmission speed; generating a partial response signal by converting a binary NRZ signal from a digital signal source in synchronism with the system clock source; and modulating the optical pulse signal based on the partial response signal, and outputting a binary RZ modulated signal. The binary RZ modulated signal is input into a receiver, where two partial response components in the optical spectra of the input signal are divided, and one or both of the components are received.

摘要翻译： 提高波长公差的系统以简单的方式补偿色散，减少了光纤输入功率的限制。 该操作包括从系统时钟源接收时钟信号; 基于时钟信号调制单模光信号并产生具有两个纵模的光脉冲信号，其频率间隔为n×B，n为自然数，B为传输速度; 通过与系统时钟源同步地从数字信号源转换二进制NRZ信号来产生部分响应信号; 并根据部分响应信号调制光脉冲信号，并输出二进制RZ调制信号。 二进制RZ调制信号被输入到接收机中，其中输入信号的光谱中的两个部分响应分量被分割，并且接收一个或两个分量。

公开(公告)号：US08005374B2

公开(公告)日：2011-08-23

申请号：US12723210

申请日：2010-03-12

申请人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

发明人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

IPC分类号： H04B10/06

CPC分类号： H04B10/58 ,  H04B10/5051 ,  H04B10/5055 ,  H04B10/50575 ,  H04B10/54 ,  H04B10/66

摘要： An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection circuit (222), which uses the signal train output from a balanced detection circuit (221) to detect the infinitesimal-modulated signal component applied to the phase adjustment terminal (201) of an MZI (200) by an infinitesimal-modulated signal oscillation circuit (224); a synchronous detection circuit (223), which synchronously detects the infinitesimal-modulated signals output from the infinitesimal-modulated signal component detection circuit (222) and infinitesimal-modulated signal oscillation circuit (224) and detects the error signal component arising from the shift between the optical signal carrier frequency and the optical frequency characteristic of the MZI (200); and a controller (207), which outputs a control signal to adjust the phase difference between two split optical signals output from the MZI (200) so as to correct the shift amount.

摘要翻译： 提供了一种光传输系统，其中可以设置与发射侧的光源的光频率相匹配的马赫 - 曾德干涉仪的最佳工作点。 光接收器（2）具有无穷小调制信号分量检测电路（222），其使用从平衡检测电路（221）输出的信号串来检测施加到相位调整端子（201）的无穷小调制信号分量， 通过无穷小调制信号振荡电路（224）的MZI（200）; 同步检测电路（223），其同步地检测从无穷小调制信号分量检测电路（222）和无穷小调制信号振荡电路（224）输出的无穷小调制信号，并检测由第二调制信号分量检测电路 MZI（200）的光信号载波频率和光频特性; 以及控制器（207），其输出控制信号以调整从MZI（200）输出的两个分离光信号之间的相位差，以校正偏移量。

公开(公告)号：US07734194B2

公开(公告)日：2010-06-08

申请号：US10555710

申请日：2005-03-17

申请人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

发明人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

IPC分类号： H04B10/06

CPC分类号： H04B10/58 ,  H04B10/5051 ,  H04B10/5055 ,  H04B10/50575 ,  H04B10/54 ,  H04B10/66

摘要： An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection circuit (222), which uses the signal train output from a balanced detection circuit (221) to detect the infinitesimal-modulated signal component applied to the phase adjustment terminal (201) of an MZI (200) by an infinitesimal-modulated signal oscillation circuit (224); a synchronous detection circuit (223), which synchronously detects the infinitesimal-modulated signals output from the infinitesimal-modulated signal component detection circuit (222) and infinitesimal-modulated signal oscillation circuit (224) and detects the error signal component arising from the shift between the optical signal carrier frequency and the optical frequency characteristic of the MZI (200); and a controller (207), which outputs a control signal to adjust the phase difference between two split optical signals output from the MZI (200) so as to correct the shift amount.

摘要翻译： 提供了一种光传输系统，其中可以设置与发射侧的光源的光频率相匹配的马赫 - 曾德干涉仪的最佳工作点。 光接收器（2）具有无穷小调制信号分量检测电路（222），其使用从平衡检测电路（221）输出的信号串来检测施加到相位调整端子（201）的无穷小调制信号分量， 通过无穷小调制信号振荡电路（224）的MZI（200）; 同步检测电路（223），其同步地检测从无穷小调制信号分量检测电路（222）和无穷小调制信号振荡电路（224）输出的无穷小调制信号，并检测由 MZI（200）的光信号载波频率和光频特性; 以及控制器（207），其输出控制信号以调整从MZI（200）输出的两个分离光信号之间的相位差，以校正偏移量。

公开(公告)号：US20140270776A1

公开(公告)日：2014-09-18

申请号：US14009264

申请日：2012-04-26

申请人： Masahiko Jinno ,  Hidehiko Takara ,  Kazushige Yonenaga ,  Akira Hirano ,  Yoshiaki Sone

发明人： Masahiko Jinno ,  Hidehiko Takara ,  Kazushige Yonenaga ,  Akira Hirano ,  Yoshiaki Sone

IPC分类号： H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0238 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04L27/2697 ,  H04Q11/0067 ,  H04Q2011/0086

摘要： An optical communication apparatus, in the sending side, distributes client signals according to destinations and a communication capacity of each destination, electrical-to-optical converts the distributed signals to optical signals having different center frequencies, and multiplexes the optical signals to output, and in the receiving side, the optical communication apparatus divides the wavelength division multiplexed signal to each wavelength (for each sending source), optical-to-electrical converts the divided optical signals to electrical signals, and multiplexes the electrical signals to output. An add/drop port of an optical route switching apparatus includes an input/output port to the optical communication apparatus, and an optical frequency bandwidth is variable according to an optical spectrum width of the optical signal. A network is constructed by using the optical communication apparatus and the optical route switching apparatus.

摘要翻译： 发送侧的光通信装置根据目的地和每个目的地的通信容量分配客户端信号，将分布式信号进行电光转换为具有不同中心频率的光信号，并将光信号复用输出，以及 在接收侧，光通信装置将波分多路复用信号划分为每个波长（对于每个发送源），光对电转换成电信号，并将电信号多路复用为输出。 光路由交换装置的分插口包括到光通信装置的输入/输出端口，并且光频带宽根据光信号的光谱宽度是可变的。 通过使用光通信装置和光路转换装置构成网络。

公开(公告)号：US20100172653A1

公开(公告)日：2010-07-08

申请号：US12723210

申请日：2010-03-12

申请人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

发明人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

IPC分类号： H04B10/00

CPC分类号： H04B10/58 ,  H04B10/5051 ,  H04B10/5055 ,  H04B10/50575 ,  H04B10/54 ,  H04B10/66

摘要： An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection circuit (222), which uses the signal train output from a balanced detection circuit (221) to detect the infinitesimal-modulated signal component applied to the phase adjustment terminal (201) of an MZI (200) by an infinitesimal-modulated signal oscillation circuit (224); a synchronous detection circuit (223), which synchronously detects the infinitesimal-modulated signals output from the infinitesimal-modulated signal component detection circuit (222) and infinitesimal-modulated signal oscillation circuit (224) and detects the error signal component arising from the shift between the optical signal carrier frequency and the optical frequency characteristic of the MZI (200); and a controller (207), which outputs a control signal to adjust the phase difference between two split optical signals output from the MZI (200) so as to correct the shift amount.

摘要翻译： 提供了一种光传输系统，其中可以设置与发射侧的光源的光频率相匹配的马赫 - 曾德干涉仪的最佳工作点。 光接收器（2）具有无穷小调制信号分量检测电路（222），其使用从平衡检测电路（221）输出的信号串来检测施加到相位调整端子（201）的无穷小调制信号分量， 通过无穷小调制信号振荡电路（224）的MZI（200）; 同步检测电路（223），其同步地检测从无穷小调制信号分量检测电路（222）和无穷小调制信号振荡电路（224）输出的无穷小调制信号，并检测由第二调制信号分量检测电路 MZI（200）的光信号载波频率和光频特性; 以及控制器（207），其输出控制信号以调整从MZI（200）输出的两个分离光信号之间的相位差，以校正偏移量。

公开(公告)号：US09479282B2

公开(公告)日：2016-10-25

申请号：US14009264

申请日：2012-04-26

申请人： Masahiko Jinno ,  Hidehiko Takara ,  Kazushige Yonenaga ,  Akira Hirano ,  Yoshiaki Sone

发明人： Masahiko Jinno ,  Hidehiko Takara ,  Kazushige Yonenaga ,  Akira Hirano ,  Yoshiaki Sone

IPC分类号： H04J14/02 ,  H04B10/40 ,  H04Q11/00 ,  H04L27/26

CPC分类号： H04J14/0238 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04L27/2697 ,  H04Q11/0067 ,  H04Q2011/0086

摘要： An optical communication apparatus, in the sending side, distributes client signals according to destinations and a communication capacity of each destination, electrical-to-optical converts the distributed signals to optical signals having different center frequencies, and multiplexes the optical signals to output, and in the receiving side, the optical communication apparatus divides the wavelength division multiplexed signal to each wavelength (for each sending source), optical-to-electrical converts the divided optical signals to electrical signals, and multiplexes the electrical signals to output. An add/drop port of an optical route switching apparatus includes an input/output port to the optical communication apparatus, and an optical frequency bandwidth is variable according to an optical spectrum width of the optical signal. A network is constructed by using the optical communication apparatus and the optical route switching apparatus.

摘要翻译： 发送侧的光通信装置根据目的地和每个目的地的通信容量分配客户端信号，将分布式信号进行电光转换为具有不同中心频率的光信号，并将光信号复用输出，以及 在接收侧，光通信装置将波分多路复用信号划分为每个波长（对于每个发送源），光对电转换成电信号，并将电信号多路复用为输出。 光路由交换装置的分插口包括到光通信装置的输入/输出端口，并且光频带宽根据光信号的光谱宽度是可变的。 通过使用光通信装置和光路转换装置构成网络。

公开(公告)号：US07715717B2

公开(公告)日：2010-05-11

申请号：US10564461

申请日：2004-09-03

申请人： Werner Weiershausen ,  Arnold Mattheus ,  Ralph Leppla ,  Yutaka Miyamoto ,  Akira Hirano ,  Yoshiaki Kisaka

发明人： Werner Weiershausen ,  Arnold Mattheus ,  Ralph Leppla ,  Yutaka Miyamoto ,  Akira Hirano ,  Yoshiaki Kisaka

IPC分类号： H04J14/06

CPC分类号： H04B10/2569 ,  G01M11/336

摘要： The present invention proposes a method whereby during a specified/specifiable observation period (Ttotal) , the polarization states of optical transmission system and/or the optical signals transmitted by the optical transmission system are changed by applying a targeted intervention in at least one position of the transmission line, and at a second position which is interposed at least one place downstream from the first position of the optical transmission line, a specified/specifiable signal characteristic (BER) is qualitatively measured and checked for adherence to a specified/specifiable threshold condition (BERth) and the PMD-induced outage probability of the optical transmission system is calculated on the basis of the ratio between the length of that share of the time (Tout), during which the measured signal characteristic fails to meet the threshold condition (BERth), to the length of the observation period (Ttotal).

摘要翻译： 本发明提出一种方法，在特定/可指定的观察期（T total）期间，通过在至少一个位置上施加目标干预来改变由光传输系统传输的光传输系统和/或光信号的偏振状态 传输线，并且在位于光传输线的第一位置下游的至少一个位置的第二位置处，定性地测量并检查指定的/可指定的信号特性（BER）以遵守指定的/可指定的阈值条件 （BERth），并且基于该时间段（Tout）的长度之间的比率来计算光传输系统的PMD导致的中断概率，其中测量的信号特性不能满足阈值条件（BERth） ），到观察期的长度（T total）。

公开(公告)号：US07536108B2

公开(公告)日：2009-05-19

申请号：US10185486

申请日：2002-06-26

申请人： Akira Hirano ,  Yutaka Miyamoto ,  Masahito Tomizawa ,  Shoichiro Kuwahara ,  Hiroshi Takahashi ,  Yasuyuki Inoue

发明人： Akira Hirano ,  Yutaka Miyamoto ,  Masahito Tomizawa ,  Shoichiro Kuwahara ,  Hiroshi Takahashi ,  Yasuyuki Inoue

IPC分类号： H04B10/12

CPC分类号： H04B10/25133 ,  H04B10/25137

摘要： The present invention relates to an automatic dispersion compensating optical link system. Carrier suppressed RZ encoded optical signals generated using carrier suppressing means and binary NRZ code or partial response code, or carrier suppressed clock signals generated using carrier suppressing means and clock signals are transmitted on an optical transmission line. Two bands of the carrier suppressed RZ encoded optical signals or carrier suppressed clock signals transmitted on the optical transmission line are each divided into bands and are received. Phase information of the respective basebands is extracted from the binary NRZ code components or partial response code components or clock signals in each band and the relative phase difference thereof is detected. The chromatic dispersion value of the optical transmission line is then calculated from the relative phase difference.

摘要翻译： 本发明涉及自动色散补偿光链路系统。 载波抑制使用载波抑制装置产生的RZ编码光信号和二进制NRZ码或部分响应码，或者使用载波抑制装置和时钟信号产生的载波抑制时钟信号在光传输线路上传输。 载波抑制RZ编码的光信号的两个频带或在光传输线路上传输的载波抑制时钟信号各自被分成频带并被接收。 从每个频带中的二进制NRZ码分量或部分响应码分量或时钟信号中提取各个基带的相位信息，并检测其相对相位差。 然后从相对相位差计算光传输线的色散值。

公开(公告)号：US07424230B2

公开(公告)日：2008-09-09

申请号：US10308588

申请日：2002-12-03

申请人： Masahito Tomizawa ,  Akira Hirano ,  Yoshiaki Kisaka ,  Yutaka Miyamoto

发明人： Masahito Tomizawa ,  Akira Hirano ,  Yoshiaki Kisaka ,  Yutaka Miyamoto

IPC分类号： H04B10/06 ,  H04L25/03 ,  H03M13/00

CPC分类号： H04L25/062

摘要： This digital transmission system is provided with a transmitting apparatus that transmits digital data signals and a receiving apparatus that receives the digital data signals transmitted over a transmission path, compares the signals with a predetermined threshold value, and performs decision reproduction. The receiving apparatus is formed by: decision circuits that receive the input of reception signals, discriminate between the respective reception signals using a plurality of threshold values, and output decision results; and a selection circuit that, based on the decision results output from the decision circuit, selects one decision result from one threshold value from among the decision results from each of the plurality of threshold values, and outputs the selected decision result. As a result, the receiving apparatus is able to individually select which decision result to use from which threshold value.

摘要翻译： 该数字传输系统设置有发送数字数据信号的发送装置和接收通过传输路径发送的数字数据信号的接收装置，将该信号与规定的阈值进行比较，进行判定再现。 接收装置由以下部分构成：接收接收信号的输入的判定电路，使用多个阈值对各个接收信号进行识别，并输出判定结果; 以及选择电路，其基于从所述判定电路输出的判定结果，从所述多个阈值中的每一个的判定结果中从一个阈值中选择一个判定结果，并输出所选择的判定结果。 结果，接收装置能够从哪个阈值单独地选择使用哪个判定结果。