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1. 发明专利

JP2010130323A Optical transmission apparatus 审中-公开
标题翻译：光传输装置
公开(公告)号：JP2010130323A
公开(公告)日：2010-06-10
申请号：JP2008302568
申请日：2008-11-27
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： AKASAKA KYOICHI , ASANO TETSUTOSHI , OGUSU MASAHIRO
IPC分类号： H04B10/2507 , G02F1/03 , G02F1/035 , H04B10/07 , H04B10/516 , H04B10/54 , H04B10/556 , H04B10/61
CPC分类号： H04B10/50577 , H04B10/58
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission apparatus capable of always monitoring a skew to eliminate the skew immediately when the skew is generated.
SOLUTION: An optical transmission apparatus including a Mach-Zehnder modulator is characterized in that a phase varying section is connected to at least one of transmission lines which transmit modulation data to the Mach-Zehnder modulator, a phase synchronization loop is connected to the phase varying section, and a control voltage on which a dither signal is superimposed is applied to the phase varying section to adjust a skew between the transmission lines for transmitting the modulation data to remain constant.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够始终监视偏斜的光传输装置，以便在产生歪斜时立即消除倾斜。解决方案：包括马赫 - 曾德调制器的光传输装置的特征在于，相变部分连接到向Mach-Zehnder调制器发送调制数据的传输线中的至少一个，相位同步回路连接到相位变化部分和叠加有抖动信号的控制电压被施加到相变部分，以调整用于发送调制数据的传输线之间的偏差保持恒定。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2010028741A Optical transmitter 审中-公开
标题翻译：光学发射器
公开(公告)号：JP2010028741A
公开(公告)日：2010-02-04
申请号：JP2008190991
申请日：2008-07-24
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： ASANO TETSUTOSHI , OGUSU MASAHIRO
IPC分类号： H04B10/40 , G02F1/01 , H04B10/07 , H04B10/50 , H04B10/516 , H04B10/556 , H04B10/564 , H04B10/60 , H04B10/61
CPC分类号： H04B10/5057 , H04B10/5561
摘要： PROBLEM TO BE SOLVED: To provide an optical transmitter that transmits a phase modulated optical signal, with small circuit scale and high reliability.
SOLUTION: The optical transmitter 1 includes a modulation unit 20 including a main modulator M1 with sub modulators M2, M3 formed in arms 21a, 21b, respectively. The modulation unit 20 sets up a phase difference between optical signals L11, L12 via the arms 21a, 21b and modulates the optical signals L11, L12 in accordance with data signals D11, D12 and data signals D21, D22 input from the outside. A bias control unit 50 superimposes a dither signal on the optical signals L11, L12 by means of bias signals B1, B2 and controls a bias signal B3 to be applied to a bias electrode 24a provided in the main modulator M1 on the basis of a detection result of a dither signal included in a received signal R1 output from a photodiode PD.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供发射具有小电路规模和高可靠性的相位调制光信号的光发射机。解决方案：光发射机1包括调制单元20，调制单元20包括分别形成在臂21a，21b中的辅调制器M2，M3的主调制器M1。调制单元20经由臂21a，21b设置光信号L11，L12之间的相位差，并且根据从外部输入的数据信号D11，D12和数据信号D21，D22对光信号L11，L12进行调制。偏置控制单元50通过偏置信号B1，B2将抖动信号叠加在光信号L11，L12上，并且基于检测来控制要施加到主调制器M1中的偏置电极24a的偏置信号B3 包含在从光电二极管PD输出的接收信号R1中的抖动信号的结果。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2008211439A Optical transmitter 审中-公开
标题翻译：光学发射器
公开(公告)号：JP2008211439A
公开(公告)日：2008-09-11
申请号：JP2007045198
申请日：2007-02-26
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： ASANO TETSUTOSHI
IPC分类号： H04B10/40 , H04B10/07 , H04B10/50 , H04B10/524 , H04B10/556 , H04B10/60
CPC分类号： H04B10/505 , H04B10/548
摘要： PROBLEM TO BE SOLVED: To provide an optical transmitter capable of precise synchronization of a data signal and a clock signal.
SOLUTION: An optical transmitter for performing an optical modulation, on the basis of a data signal to be transmitted to generate a transmission light signal is provided with an optical phase modulating means for modulating an optical phase modulation of an output light of a light source on the basis of a data signal; an optical pulse modulating means for performing an optical pulse modulation over the output light of the optical phase modulating means, on the basis of a clock signal and outputting the light as an optical transmission output; an extending means for extending a code transition time of the data signal for applying the data signal to the optical phase modulating means; and a phase control means for modulating a phase shift amount of a data signal or a clock signal with a dither signal, performing synchronous detection over the optical transmission output, and controlling the phase shift amount with a synchronous detection signal.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够精确地同步数据信号和时钟信号的光发射机。解决方案：一种用于执行光调制的光发送器，其基于要发送的数据信号以产生透射光信号，设置有光相位调制装置，用于调制光信号的输出光的光相位调制光源基于数据信号; 光脉冲调制装置，用于根据时钟信号对光相位调制装置的输出光进行光脉冲调制，并输出光作为光传输输出; 扩展装置，用于将数据信号的代码转换时间延长以将数据信号施加到光相位调制装置; 以及相位控制装置，用于通过抖动信号调制数据信号或时钟信号的相移量，对光传输输出执行同步检测，并用同步检测信号控制相移量。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2010128244A Optical transmission device 审中-公开
标题翻译：光传输设备
公开(公告)号：JP2010128244A
公开(公告)日：2010-06-10
申请号：JP2008303654
申请日：2008-11-28
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： ASANO TETSUTOSHI
IPC分类号： G02F1/03 , G02F1/035 , H04B10/07 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/516 , H04B10/524 , H04B10/556 , H04B10/564 , H04B10/60 , H04B10/61
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission device for improving transmission quality by driving a driving voltage of a Mach-Zehnder (MZ) modulator more greatly than a specified voltage.
SOLUTION: The optical transmission device uses the MZ modulator input with a differential data as a modulation data, an attenuation means is connected to at least one of transmission lines for transmitting the modulation data, the attenuation means is connected with a phase synchronization loop for impressing an amplitude control voltage superposed with a dither signal to a means for outputting the modulation data, to conduct synchronization detection, and is impressed with a control voltage, and the driving voltage of the modulation data input into the MZ modulator is regulated unbalancedly by the attenuation means.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过比特定电压更大地驱动马赫 - 曾德（MZ）调制器的驱动电压来提高传输质量的光传输装置。解决方案：光传输装置使用具有差分数据的MZ调制器输入作为调制数据，衰减装置连接到用于发送调制数据的传输线中的至少一个，衰减装置与相位同步用于将与抖动信号叠加的幅度控制电压施加到用于输出调制数据的装置，进行同步检测，并施加控制电压，输入到MZ调制器的调制数据的驱动电压被不平衡地调节通过衰减手段。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2010062654A Optical transmission apparatus and light transmission system 审中-公开
标题翻译：光传输装置和光传输系统
公开(公告)号：JP2010062654A
公开(公告)日：2010-03-18
申请号：JP2008223721
申请日：2008-09-01
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： OGUSU MASAHIRO , ASANO TETSUTOSHI
IPC分类号： H04B10/516 , H04B10/556 , H04B10/61
摘要： PROBLEM TO BE SOLVED: To provide an optical transmission apparatus that achieves an optical transmission system having high flexibility while reducing the circuit scale, and to provide a light transmission system which is provided with the apparatus and flexibly compatible with. SOLUTION: The optical transmission system 1 includes the optical transmission apparatus 10 which outputs a phase modulation optical signal PL based on the transmission data D, and a light receiving device 20 which receives the phase modulation optical signal PL and demodulates the transmission data D. The optical transmission apparatus 10 includes a phase modulation section 13 which performs phase modulation of the branch light L11 of vertical polarization based on the transmission data D, and a clock modulation section 14 which performs signal strength modulation of the branch light L12 of horizontal polarization based on a clock signal CK, and outputs a phase modulation optical signal PL by multiplexing the branch light subjected to phase modulation at the phase modulation section 13 and the branch light subjected to signal strength modulation at the clock modulation section 14. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种在减小电路规模的同时实现具有高灵活性的光传输系统的光传输装置，并且提供设置有该装置并灵活兼容的光传输系统。光传输系统1包括基于发送数据D输出相位调制光信号PL的光发送装置10和接收相位调制光信号PL并解调发送数据的光接收装置20 光传输装置10包括：相位调制部13，其对基于发送数据D的垂直极化的分支光L11进行相位调制;时钟调制部14，对水平方向的分支光L12进行信号强度调制基于时钟信号CK进行极化，并且通过将在相位调制部13进行相位调制的分支光和在时钟调制部14进行信号强度调制的分支光复用，输出相位调制光信号PL。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2008219069A Optical receiver and optical transmitter 审中-公开
标题翻译：光接收器和光传输器
公开(公告)号：JP2008219069A
公开(公告)日：2008-09-18
申请号：JP2007049231
申请日：2007-02-28
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： ASANO TETSUTOSHI
IPC分类号： H04B10/40 , H04B10/07 , H04B10/2507 , H04B10/50 , H04B10/516 , H04B10/54 , H04B10/548 , H04B10/60 , H04B10/61 , H04B10/69
CPC分类号： H04B10/5051 , H04B10/505 , H04B10/548 , H04B10/676
摘要： PROBLEM TO BE SOLVED: To provide an optical receiver which can stably receive a transmission light signal without modulating a control signal of a delay interferometer, and to provide an optical transmitter.
SOLUTION: The optical receiver for receiving a transmission light signal which is subjected to an optical phase modulation based on a data signal to be transmitted and has a dither signal superposed thereon includes: a delay interferometer to which the transmission light signal having the dither signal superposed thereon is applied and which converts the transmission light signal into a light intensity modulation signal based on a control signal; a photodetector for converting two light outputs of the delay interferometer into an electric signal; two current detecting means for differentially detecting a photocurrent flowing to the photodetector as a detection voltage; a data clock reproducing means for outputting the data signal and a clock signal based on an output of the photodetector; two filter means for extracting dither signal components of the differential detection voltages respectively; and a control means for determining the control signal and applying the control signal to the delay interferometer in such a manner that one of the differential detection voltages is a maximum and the other is a minimum, and both of the dither signal components which are extracted have a minimum amplitude.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以稳定地接收传输光信号而不调制延迟干涉仪的控制信号的光接收机，并提供光发射机。解决方案：用于接收基于要发送的数据信号进行光相位调制并具有叠加在其上的抖动信号的发送光信号的光接收器包括：延迟干涉仪，其中具有叠加在其上的抖动信号被施加，并且基于控制信号将透射光信号转换成光强度调制信号; 用于将延迟干涉仪的两个光输出转换成电信号的光电检测器; 两个电流检测装置，用于将流过光电检测器的光电流差分检测为检测电压; 数据时钟再现装置，用于基于光电检测器的输出输出数据信号和时钟信号; 两个滤波器装置，用于分别提取差分检测电压的抖动信号分量; 以及控制装置，用于确定控制信号并将控制信号施加到延迟干涉仪，使得差分检测电压之一为最大值，另一个为最小值，并且提取的抖动信号分量均为最小幅度。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2012124558A Optical receiving device 审中-公开
标题翻译：光接收装置
公开(公告)号：JP2012124558A
公开(公告)日：2012-06-28
申请号：JP2010271213
申请日：2010-12-06
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： ASANO TETSUTOSHI
IPC分类号： H04B10/40 , H04B10/07 , H04B10/50 , H04B10/516 , H04B10/556 , H04B10/564 , H04B10/60 , H04B10/61 , H04B10/67 , H04B10/69
摘要： PROBLEM TO BE SOLVED: To achieve an optical DQPSK receiving device which improves the precision and responsiveness of delay control.SOLUTION: An optical receiving device is equipped with a delay control unit which operates to cause a DQPSK optical phase modulation signal to branch into phase components orthogonal to each other to input the respective components to first and second delay interferometers and to convert the outputs of these delay interferometers into first and second reception signals, respectively, by first and second optical receivers each composed of a pair of balanced diodes, and which operates to input detection signals of optical reception currents of the pair of balanced diodes for the delay interferometers to provide feedback signals to the delay units of the first and second delay interferometers. The optical receiving device comprises a first subtraction circuit for inputting and subtracting a voltage signal of the first reception signal, a second subtraction circuit for inputting and subtracting a voltage signal of the second reception signal, and the delay control unit for inputting the output signals of the first and second subtraction circuits to provide feedback signals to the delay units of the first and second delay interferometers, respectively.
摘要翻译：要解决的问题：实现提高延迟控制的精度和响应性的光DQPSK接收装置。解决方案：光接收装置配备有延迟控制单元，其操作以使DQPSK光相位调制信号分支到彼此正交的相位分量，以将相应的分量输入到第一和第二延迟干涉仪，并将这些延迟干涉仪的输出分别由由一对平衡二极管构成的第一和第二光接收器分别输入到第一和第二接收信号中，并且其操作以输入用于延迟干涉仪的一对平衡二极管的光接收电流的检测信号以向第一和第二延迟干涉仪的延迟单元提供反馈信号。光接收装置包括用于输入和减去第一接收信号的电压信号的第一减法电路，用于输入和减去第二接收信号的电压信号的第二减法电路和用于输入第二接收信号的输出信号的延迟控制单元第一和第二减法电路，分别向第一和第二延迟干涉仪的延迟单元提供反馈信号。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2010135999A High frequency module 审中-公开
标题翻译：高频模块
公开(公告)号：JP2010135999A
公开(公告)日：2010-06-17
申请号：JP2008308678
申请日：2008-12-03
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： ASANO TETSUTOSHI , OGUSU MASAHIRO
IPC分类号： H04L7/04 , H03K5/00
摘要： PROBLEM TO BE SOLVED: To provide a high frequency module reducing a phase control error. SOLUTION: The high frequency module is provided with a high speed logic circuit for which high speed digital signals and a high speed clock are input signals and the phase of the clock relative to the digital signals is adjusted by a phase shifter so as to output signals without errors. The phase information of the digital signals and the clock is fed back to the phase shifter as phase control signals, through a phase locked loop including: a phase comparator for detecting a phase difference between the digital signals and the clock input from the phase shifter to the high speed logic circuit; and a synchronous detection circuit for extracting synchronous detection output on the basis of the phase difference signals of the phase comparator. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供降低相位控制误差的高频模块。解决方案：高频模块配有高速逻辑电路，高速数字信号和高速时钟是输入信号，时钟相对于数字信号的相位由移相器调节，以便输出信号而没有错误。通过锁相环将数字信号和时钟的相位信息作为相位控制信号反馈到移相器，该锁相环包括：相位比较器，用于检测数字信号与从移相器输入的时钟之间的相位差，高速逻辑电路; 以及同步检测电路，用于根据相位比较器的相位差信号提取同步检测输出。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2009232330A Optical receiver 审中-公开
标题翻译：光接收机
公开(公告)号：JP2009232330A
公开(公告)日：2009-10-08
申请号：JP2008077370
申请日：2008-03-25
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： ASANO TETSUTOSHI , OGUSU MASAHIRO
IPC分类号： H04B10/07 , H04B10/079 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/524 , H04B10/556 , H04B10/60 , H04B10/67 , H04B10/69
CPC分类号： H04B10/677
摘要： PROBLEM TO BE SOLVED: To provide an optical receiver, in which the abnormality in some channel will not affect to the other channels.
SOLUTION: In the optical receiver, which inputs optical DQPSK signals supplied from external units into first and second delay interferometers 2, 3 respectively, then, the output light of the first and second delay interferometers 2, 3 is reproduced by first and second photodetectors 4, 5 as the binary NRZ (Non Return to Zero) signal of a first and second channels, the delay times of the first and second delay interferometers 2, 3 are controlled through feedback control by control systems independent in each first and second channels.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种光接收机，其中一些信道中的异常不会影响其他信道。解决方案：在光接收机中，其将从外部单元提供的光DQPSK信号分别输入到第一和第二延迟干涉仪2,3中，然后第一和第二延迟干涉仪2,3的输出光由第一和第二延迟干涉仪2,3再现，第二光电探测器4,5作为第一和第二通道的二进制NRZ（非归零）信号，第一和第二延迟干涉仪2,3的延迟时间通过独立于每个第一和第二通道的控制系统的反馈控制来控制频道版权所有（C）2010，JPO＆INPIT

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