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公开(公告)号：US08208812B2
公开(公告)日：2012-06-26
申请号：US12299065
申请日：2006-05-25
IPC分类号： H04J14/02
CPC分类号： H04J14/0221 , H04B10/296 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/021 , H04J14/0227 , H04J14/0246 , H04J14/0279
摘要： A control-target-value setting unit sets a control target value corresponding to the number of multiplexed wavelengths measured by a number-of-multiplexed-wavelengths measuring unit. A controller controls the variable optical attenuator based on the control target value. An optical amplifier performs an optical amplification with a constant gain regardless of power of a wavelength-multiplexed light. The controller performs feedback control of the variable optical attenuator such that a result of measurement of the total power of the wavelength-multiplexed light coincides with the control target value.
摘要翻译： 控制目标值设定单元设定与多路复用波长测量单元测得的复用波长数对应的控制对象值。 控制器根据控制目标值控制可变光衰减器。 无论波分复用光的功率如何，光放大器都以恒定的增益进行光放大。 控制器执行可变光衰减器的反馈控制，使得波分复用光的总功率的测量结果与控制目标值一致。
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公开(公告)号：US20100239263A1
公开(公告)日：2010-09-23
申请号：US12299065
申请日：2006-05-25
IPC分类号： H04J14/02
CPC分类号： H04J14/0221 , H04B10/296 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/021 , H04J14/0227 , H04J14/0246 , H04J14/0279
摘要： A control-target-value setting unit sets a control target value corresponding to the number of multiplexed wavelengths measured by a number-of-multiplexed-wavelengths measuring unit. A controller controls the variable optical attenuator based on the control target value. An optical amplifier performs an optical amplification with a constant gain regardless of power of a wavelength-multiplexed light. The controller performs feedback control of the variable optical attenuator such that a result of measurement of the total power of the wavelength-multiplexed light coincides with the control target value.
摘要翻译： 控制目标值设定单元设定与多路复用波长测量单元测得的复用波长数对应的控制对象值。 控制器根据控制目标值控制可变光衰减器。 无论波分复用光的功率如何，光放大器都以恒定的增益进行光放大。 控制器执行可变光衰减器的反馈控制，使得波分复用光的总功率的测量结果与控制目标值一致。
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13.发明授权公开(公告)号：US07092643B2
公开(公告)日：2006-08-15
申请号：US09892918
申请日：2001-06-28
CPC分类号： H04B10/58 , G02F1/0123 , G02F1/225 , G02F2203/20 , H04B10/505 , H04B10/50575 , H04B10/508
摘要： The optical transmission apparatus has a Mach-Zehnder optical modulator, a light source for applying an optical signal of a continuous light to the optical modulator, a driving circuit for inputting a driving signal into the optical modulator, a branching filter for taking out a part of an output optical signal, a photodiode for converting the taken-out output optical signal into an electric signal, a band pass filter for extracting a frequency component of a driving signal included in this electric signal, an error signal generator circuit for generating an error signal of a bias voltage that minimizes a value of the extracted frequency component, and a bias voltage control circuit for applying a bias voltage added with this error signal to the optical modulator.
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公开(公告)号：US06832048B2
公开(公告)日：2004-12-14
申请号：US09782258
申请日：2001-02-14
申请人： Kazuyuki Ishida , Katsuhiro Shimizu
发明人： Kazuyuki Ishida , Katsuhiro Shimizu
IPC分类号： H04J1402
CPC分类号： G02B6/12009 , H04B10/25133 , H04B2210/254 , H04B2210/258
摘要： An AWG (arrayed-waveguide grating/10A) divides input ports (11A1 to 11An+1−1) into 1 number of groups, each group comprising m number of input ports, and combines optical signals belonging to each of the groups. For example, the optical signals of wavelengths &lgr;1 to &lgr;m are input from the input ports (11A1 to 11Am) and output from an output port (12A1) as multiplex light. The multiplex light output in each of the groups in the above manner is input into a wave combination coupler (18A) and output to a transmission line (19A) as multiplex light of the optical signals of the wavelengths &lgr;1 to &lgr;n.
摘要翻译： AWG（阵列波导光栅/ 10A）将输入端口（11A1〜11An + 1-1）分割为1组，每组包含m个输入端口，并且组合属于每个组的光信号。 例如，从输入端口（11A1〜11Am）输入波长λ1〜lambdam的光信号，作为多路光从输出端口（12A1）输出。 以上述方式将各组中的多路复用光输出输入到波合成耦合器（18A）中，作为波长λ1〜lambdan的光信号的多路光输出到传输线（19A）。
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公开(公告)号：US08059971B2
公开(公告)日：2011-11-15
申请号：US11792306
申请日：2004-12-28
CPC分类号： H04B10/66
摘要： An optical reception device realizes stabilization of reception sensitivity inexpensively and highly precisely. The optical reception device includes: a Mach-Zehnder type 1-bit delay unit including a one-terminal input port and two-terminal output ports for decoding an optical difference phase shift keying (DPSK) signal and provided with one or more phase control functions to control the phase state of light; photoelectric conversion means for branching a portion of an optical output signal output from the one-side output port of the Mach-Zehnder type 1-bit delay unit, to convert the branched portion into an electric signal; and a phase control unit for controlling the phase state of the Mach-Zehnder type 1-bit delay device by using as an error signal the output signal of the photoelectric conversion means.
摘要翻译： 光接收装置实现了廉价高精度的接收灵敏度的稳定化。 光接收装置包括：马赫 - 策德尔型1位延迟单元，其包括单端输入端口和用于解码光差分相移键控（DPSK）信号并具有一个或多个相位控制功能的两端输出端口 控制光的相位状态; 光电转换装置，用于对从Mach-Zehnder型1位延迟单元的单面输出端口输出的光输出信号的一部分进行分支，将分支部分转换为电信号; 以及相位控制单元，用于通过使用光电转换装置的输出信号作为误差信号来控制马赫 - 曾德尔型1位延迟装置的相位状态。
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公开(公告)号：US5003977A
公开(公告)日：1991-04-02
申请号：US321296
申请日：1989-03-09
申请人： Susumu Suzuki , Kazuyuki Ishida , Takeo Ozaki
发明人： Susumu Suzuki , Kazuyuki Ishida , Takeo Ozaki
CPC分类号： G01N21/274 , A61B5/0071 , A61B5/0084 , G01N21/64 , A61B5/0075 , G01J2003/2873 , G01J3/4406 , G01N2021/6417 , G01N21/6458
摘要： A device for analyzing fluorescent light signals consists of memory means for storing as a reference spectrum a spectrum obtained under predetermined conditions, and extraction means for extracting a predetermined component spectrum based on the results of a conversion of the reference spectrum using a specific wavelength of a measured spectrum obtained during actual measurement and a specific wavelength of the reference spectrum. The arrangement of the invention allows the spectrum of a specific component to be extracted accurately from measured spectra.
摘要翻译： 用于分析荧光信号的装置包括存储装置，用于存储在预定条件下获得的光谱作为参考光谱;以及提取装置，用于基于使用特定波长的参考光谱的转换结果来提取预定分量光谱 在实际测量期间获得的测量光谱和参考光谱的特定波长。 本发明的布置允许从测量的光谱中精确地提取特定成分的光谱。
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17.发明授权Optical amplifier, wavelength multiplexing optical transmission system, and program 有权光放大器，波长复用光传输系统和程序公开(公告)号：US09478935B2
公开(公告)日：2016-10-25
申请号：US14412816
申请日：2012-12-05
申请人： Toshiyuki Tokura , Kazuyuki Ishida
发明人： Toshiyuki Tokura , Kazuyuki Ishida
IPC分类号： H04J14/02 , H01S3/00 , H01S3/131 , H01S3/13 , H04B10/296 , H01S3/10 , H01S3/067 , H01S3/0941
CPC分类号： H01S3/1312 , H01S3/06754 , H01S3/09415 , H01S3/10015 , H01S3/1301 , H01S3/1305 , H01S2301/02 , H01S2301/04 , H04B10/296 , H04J14/02 , H04J14/0221
摘要： When multiplexed signal lights are amplified by optical amplifiers, a value of a monitor signal is compared with a threshold equivalent to a value of the monitor signal when noise indexes of the multiplexed signal lights start increasing. Next, when the value of the monitor signal is equal to or larger than the threshold, that is, when the powers of the multiplexed signal lights are large, a gain constant control is performed to amplify the multiplexed signal lights. Conversely, when the value of the monitor signal is smaller than the threshold, that is, when the powers of the multiplexed signal lights are small, an output constant control is performed to amplify the multiplexed signal lights.
摘要翻译： 当复用信号光被光放大器放大时，当多路信号光的噪声指数开始增加时，将监视信号的值与等于监视信号值的阈值进行比较。 接下来，当监视信号的值等于或大于阈值时，即，当多路复用信号光的功率大时，执行增益恒定控制以放大复用的信号光。 相反，当监视信号的值小于阈值时，即当多路信号光的功率小时，执行输出常数控制以放大复用的信号光。
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公开(公告)号：US20080175602A1
公开(公告)日：2008-07-24
申请号：US11792306
申请日：2004-12-28
IPC分类号： H04B10/06
CPC分类号： H04B10/66
摘要： An optical reception device realizes stabilization of reception sensitivity inexpensively and highly precisely. The optical reception device includes: a Mach-Zehnder type 1-bit delay unit including a one-terminal input port and two-terminal output ports for decoding an optical difference phase shift keying (DPSK) signal and provided with one or more phase control functions to control the phase state of light; photoelectric conversion means for branching a portion of an optical output signal output from the one-side output port of the Mach-Zehnder type 1-bit delay unit, to convert the branched portion into an electric signal; and a phase control unit for controlling the phase state of the Mach-Zehnder type 1-bit delay device by using as an error signal the output signal of the photoelectric conversion means.
摘要翻译： 光接收装置实现了廉价高精度的接收灵敏度的稳定化。 光接收装置包括：马赫 - 策德尔型1位延迟单元，其包括单端输入端口和用于解码光差分相移键控（DPSK）信号并具有一个或多个相位控制功能的两端输出端口 控制光的相位状态; 光电转换装置，用于对从Mach-Zehnder型1位延迟单元的单面输出端口输出的光输出信号的一部分进行分支，将分支部分转换为电信号; 以及相位控制单元，用于通过使用光电转换装置的输出信号作为误差信号来控制马赫 - 曾德尔型1位延迟装置的相位状态。
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公开(公告)号：US07058313B2
公开(公告)日：2006-06-06
申请号：US09969654
申请日：2001-10-04
IPC分类号： H04B10/04
CPC分类号： H04J14/02 , H04B10/504 , H04B10/541
摘要： In the multi-value modulation apparatus, one optical intensity detecting unit detects optical intensity of a modulation optical signal generated by one optical modulation signal generating unit and output from the variable optical attenuator. The detected optical intensity is provided to the comparator. Another optical intensity detecting unit detects optical intensity of a modulation optical signal output from another optical modulation signal generating unit. The attenuator attenuates the optical intensity detected by the another optical intensity detecting unit, and provides it to the comparator. The output of the comparator is provided to the optical variable attenuator as a control signal. The variable optical attenuator controls optical intensity of the modulation optical signal based on the control signal.
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20.发明授权Optical transmitter, and method of controlling bias voltage to the optical transmitter 失效光发射机，以及控制光发射机偏置电压的方法公开(公告)号：US06836622B2
公开(公告)日：2004-12-28
申请号：US09840183
申请日：2001-04-24
IPC分类号： H04B1004
CPC分类号： G02F1/0123 , G02F1/225 , G02F2001/212 , G02F2203/21
摘要： The optical transmitter comprises a light source which inputs continuous optical signal and a driving circuit which inputs driving signal to an optical modulator of Mach-Zehnder type. A photo coupler separates a part of the output of the optical modulator. A photo diode converts this part into electric signal. A band-pass filter and a pre-amplifier extract a frequency component of the driving signal contained in the electric signal. A mixer conducts synchronous detection between the driving signal and the extracted frequency component. Finally, a bias voltage control circuit controls a bias voltage based on a result of the phase comparison.
摘要翻译： 光发射机包括输入连续光信号的光源和向Mach-Zehnder型光调制器输入驱动信号的驱动电路。 光耦合器分离光调制器的一部分输出。 光电二极管将该部分转换为电信号。 带通滤波器和前置放大器提取包含在电信号中的驱动信号的频率分量。 混频器在驱动信号和提取的频率分量之间进行同步检测。 最后，偏置电压控制电路基于相位比较的结果来控制偏置电压。
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