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1. 发明授权

US06865348B2 Optical transmission method, optical transmitter, optical receiver, and optical transmission system 有权
标题翻译：光传输方式，光发射机，光接收机和光传输系统
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。

2. 发明授权

US06763197B1 Optical transmitter and optical transmitter control method using variable duty ratio setting and alternate phase inversion for optical clock pulses 失效
标题翻译：光发射机和光发射机控制方法，使用可变占空比设置和光时钟脉冲的交替相位反转
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。

3. 发明授权

US08005374B2 Optical transmission system, optical transmitter for optical transmission system, and optical receiver for optical transmission system 有权
标题翻译：光传输系统，光传输系统光发射机，光传输系统光接收机
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。

4. 发明授权

US07734194B2 Optical transmission system, optical transmitter for optical transmission system, and optical receiver for optical transmission system 有权
标题翻译：光传输系统，光传输系统光发射机，光传输系统光接收机
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。

5. 发明申请

US20140270776A1 OPTICAL COMMUNICATION APPARATUS, OPTICAL ROUTE SWITCHING APPARATUS AND NETWORK 有权
标题翻译：光通信设备，光路由切换设备和网络
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。

6. 发明申请

US20100172653A1 Optical Transmission System, Optical Transmitter for Optical Transmission System, and Optical Receiver for Optical Transmission System 有权
标题翻译：光传输系统，光传输系统光发射机和光传输系统光接收机
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。

7. 发明授权

US09479282B2 Optical communication apparatus, optical route switching apparatus and network 有权
标题翻译：光通信装置，光路交换装置和网络
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。

8. 发明授权

US06983085B2 Optical transmission circuit 失效
标题翻译：光传输电路
公开(公告)号：US06983085B2
公开(公告)日：2006-01-03
申请号：US10358737
申请日：2003-02-05
申请人： Tomoyoshi Kataoka , Akira Hirano , Akihiko Matsuura
发明人： Tomoyoshi Kataoka , Akira Hirano , Akihiko Matsuura
IPC分类号： G02F1/035
CPC分类号： H04B10/505 , G02F2203/21 , H04B10/5051 , H04B10/50575 , H04B10/564
摘要： The optical transmission circuit of the present invention has an optical modulator 12 which modulates continuous light at wavelength λo with a signal at repetition frequency fo Hz and outputs alternating phase-inverted pulse light; a bias voltage applying unit 14 which applies a bias voltage to the optical modulator 12; an optical power spectrum measuring unit 17 having frequency resolution of less than fo Hz which measures the optical power spectrum of light output from the optical modulator 12; and a control circuit which controls the bias voltage via the bias voltage applying unit 14 based on measurements of the power spectrum of the output light of the optical modulator 12, so as to minimize the power intensity of the carrier spectrum component of wavelength λo, or to maximize the power intensity of the spectrum component in both side bands.
摘要翻译：本发明的光传输电路具有光调制器12，其以重复频率为fHz的信号调制波兰兰波的连续光，并输出交替的相位反转的脉冲光; 偏置电压施加单元14，其向光调制器12施加偏置电压; 光功率谱测量单元17，其具有测量从光调制器12输出的光的光功率谱的小于f Hz的频率分辨率; 以及控制电路，其基于光调制器12的输出光的功率谱的测量，经由偏置电压施加单元14控制偏置电压，以使波长兰波的载流子分量的功率强度最小化，或以最大化两个边带中的频谱分量的功率强度。

9. 发明授权

US07715717B2 Processes and devices for the determination of a PMD-induced outage probability of an optical transmission system 有权
标题翻译：用于确定光传输系统的PMD引起的中断概率的过程和设备
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）。

10. 发明授权

US07536108B2 High precision chromatic dispersion measuring method and automatic dispersion compensating optical link system that uses this method 有权
标题翻译：高精度色散测量方法和使用该方法的自动色散补偿光链路系统
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。

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