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1. 发明公开

EP1235063A2 Low-coherence reflectometer 审中-公开
标题翻译：反射低相干
公开(公告)号：EP1235063A2
公开(公告)日：2002-08-28
申请号：EP02004405.3
申请日：2002-02-26
申请人： Ando Electric Co., Ltd. , Nippon Telegraph and Telephone Corporation
发明人： Akikuni, Fumio , Aoki, Shoichi , Yano, Tetsuo , Mori, Tohru , Takada, Kazumasa
IPC分类号： G01M11/00
CPC分类号： G01M11/3181
摘要： A photocoupler 3 splits the light from a low-coherence light source 1 into measuring light DL and local oscillator light KL. A photocoupler 5 receives measuring light DL and is input to an optical circuit 7 to be measured. The photocoupler 5 splits the reflected light RL. A polarization controller 9 controls the state of polarization of the reflected light RL as split by the photocoupler 5. A photocoupler 13 allows local oscillator light KL to be incident on a reflector mirror 16 and splits local oscillator light KL. A photocoupler 11 combines the reflected light RL as controlled in the state of polarization by the polarization controller 9, with the local oscillator light KL.

2. 发明公开

EP1235063A3 Low-coherence reflectometer 审中-公开
标题翻译： Reflektometer mit niedrigerKohärenz
公开(公告)号：EP1235063A3
公开(公告)日：2006-04-05
申请号：EP02004405.3
申请日：2002-02-26
申请人： Yokogawa Electric Corporation , NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Akikuni, Fumio , Aoki, Shoichi , Yano, Tetsuo , Mori, Tohru , Takada, Kazumasa
IPC分类号： G01M11/00
CPC分类号： G01M11/3181
摘要： A photocoupler 3 splits the light from a low-coherence light source 1 into measuring light DL and local oscillator light KL. A photocoupler 5 receives measuring light DL and is input to an optical circuit 7 to be measured. The photocoupler 5 splits the reflected light RL. A polarization controller 9 controls the state of polarization of the reflected light RL as split by the photocoupler 5. A photocoupler 13 allows local oscillator light KL to be incident on a reflector mirror 16 and splits local oscillator light KL. A photocoupler 11 combines the reflected light RL as controlled in the state of polarization by the polarization controller 9, with the local oscillator light KL.
摘要翻译：光电耦合器3将来自低相干光源1的光分解成测量光DL和本地振荡器光KL。光电耦合器5接收测量光DL并被输入到待测量的光电路7。光电耦合器5分离反射光RL。偏振控制器9控制由光电耦合器5分开的反射光RL的偏振状态。光电耦合器13允许本地振荡器光入射到反射镜16上并分离本地振荡器光KL。光电耦合器11将由偏振控制器9以极化状态控制的反射光RL与本地振荡器光KL组合。

3. 发明公开

EP1229318A3 Chromatic dispersion distribution measurement apparatus, method and storage medium for the same 审中-公开
标题翻译：方法和用于测量色散分配装置和相关联的存储介质
公开(公告)号：EP1229318A3
公开(公告)日：2004-01-28
申请号：EP02250748.7
申请日：2002-02-04
申请人： Ando Electric Co., Ltd.
发明人： Aoki, Shoichi , Ichikawa, Akio
IPC分类号： G01M11/00
CPC分类号： G01M11/3163
摘要： A chromatic dispersion distribution measurement apparatus, comprises: a portion information obtaining unit for obtaining a portion information which specifies a portion of an optical device to be measured; a sign information obtaining unit for obtaining a sign information which indicates a correct sign to be marked on a chromatic dispersion value in the specified portion; and a sign converting unit for converting an initial sign marked on the chromatic dispersion value in the specified portion, into the correct sign in accordance with the sign information obtained by the sign information obtaining unit.

4. 发明公开

EP1306656A3 Measuring method and apparatus of wavelength dispersion distribution characteristics of optical fiber 审中-公开
标题翻译：光纤的波长分散的分布测量方法和装置
公开(公告)号：EP1306656A3
公开(公告)日：2004-01-28
申请号：EP02023977.8
申请日：2002-10-25
申请人： Ando Electric Co., Ltd.
发明人： Aoki, Shoichi , Asahina, Yoshimitsu , Suzuki, Takao
IPC分类号： G01M11/00
CPC分类号： G01M11/39 , G01M11/3127 , G01M11/338
摘要： A wavelength dispersion distribution measuring apparatus of an optical fiber, comprising light signal generation section 1, 2 for generating two light signals with different wavelengths, section 3, 4 for combining the signals and shaping a light pulse signal, directional coupling section 6 for inputting the light pulse signal to one end or the other end of a measured optical fiber and also branching total back-scattered light from the measured optical fiber, wavelength extraction section 9 for passing only a wavelength component of one of four-wave mixed light generated by interaction of two wavelengths launched, measuring section 10 for measuring wavelength dispersion distribution data, changeover section 12-1 to 12-3 for switching the input side and the terminal side of the light pulse from one end to the other end of the measured optical fiber, and calculation section 11 for performing superimposition processing of two measured results associated with the switching.

5. 发明公开

EP1219945A2 Optical fiber chromatic dispersion distribution measuring apparatus and measuring method 审中-公开
标题翻译：装置和方法用于在光纤中测量色散
公开(公告)号：EP1219945A2
公开(公告)日：2002-07-03
申请号：EP01127497.4
申请日：2001-11-28
申请人： Ando Electric Co., Ltd.
发明人： Aoki, Shoichi , Nagashima, Sinya
IPC分类号： G01M11/00
CPC分类号： G01M11/3163
摘要： An optical fiber chromatic dispersion distribution measuring apparatus for measuring the chromatic dispersion distribution of an optical fiber under test comprising two light sources 1, 2 at least one of which can change wavelength thereof, wherein light beams having different wavelengths from each other and emitted from the two light sources are inputted to the optical fiber under test 7 to measure a four-wave mixing light beam generated by interaction between the two light beams by optical time domain reflectometer (OTDR) 9; wherein an optical bandpass filter 8 having a fixed center wavelength is provided at a previous stage of the optical time domain reflectometer (OTDR); and wherein a coherence controller 10 for controlling coherence of at least one of the light beams outputted from the two light sources 1, 2.
摘要翻译：用于测量光纤的色散分布下测试包括两个光源1，其中2的至少一个可在其波长变化，worin具有从海誓山盟不同波长的光束，并从出射的光纤色散分布测定装置两个光源被输入到光纤被测7来测量由两个光束通过光时域反射仪（OTDR）11之间的相互作用产生的四波混合光束; 具有固定的中心波长在光时域反射仪（OTDR）的前级设置光带通滤波器8的worin; 和worin相干控制器10，用于控制光的至少一个的相干光束从两个光源的输出1，2

6. 发明公开

EP1219945A3 Optical fiber chromatic dispersion distribution measuring apparatus and measuring method 审中-公开
标题翻译：装置和方法用于在光纤中测量色散
公开(公告)号：EP1219945A3
公开(公告)日：2004-01-28
申请号：EP01127497.4
申请日：2001-11-28
申请人： Ando Electric Co., Ltd.
发明人： Aoki, Shoichi , Nagashima, Sinya
IPC分类号： G01M11/00
CPC分类号： G01M11/3163
摘要： An optical fiber chromatic dispersion distribution measuring apparatus for measuring the chromatic dispersion distribution of an optical fiber under test comprising two light sources 1, 2 at least one of which can change wavelength thereof, wherein light beams having different wavelengths from each other and emitted from the two light sources are inputted to the optical fiber under test 7 to measure a four-wave mixing light beam generated by interaction between the two light beams by optical time domain reflectometer (OTDR) 9; wherein an optical bandpass filter 8 having a fixed center wavelength is provided at a previous stage of the optical time domain reflectometer (OTDR); and wherein a coherence controller 10 for controlling coherence of at least one of the light beams outputted from the two light sources 1, 2.

7. 发明公开

EP1306656A2 Measuring method and apparatus of wavelength dispersion distribution characteristics of optical fiber 审中-公开
标题翻译： Verfahren und Apparat zur Verteilungsmessung von optischen Faser-Wellenlängendispersion
公开(公告)号：EP1306656A2
公开(公告)日：2003-05-02
申请号：EP02023977.8
申请日：2002-10-25
申请人： Ando Electric Co., Ltd.
发明人： Aoki, Shoichi , Asahina, Yoshimitsu , Suzuki, Takao
IPC分类号： G01M11/00
CPC分类号： G01M11/39 , G01M11/3127 , G01M11/338
摘要： A wavelength dispersion distribution measuring apparatus of an optical fiber, comprising light signal generation section 1, 2 for generating two light signals with different wavelengths, section 3, 4 for combining the signals and shaping a light pulse signal, directional coupling section 6 for inputting the light pulse signal to one end or the other end of a measured optical fiber and also branching total back-scattered light from the measured optical fiber, wavelength extraction section 9 for passing only a wavelength component of one of four-wave mixed light generated by interaction of two wavelengths launched, measuring section 10 for measuring wavelength dispersion distribution data, changeover section 12-1 to 12-3 for switching the input side and the terminal side of the light pulse from one end to the other end of the measured optical fiber, and calculation section 11 for performing superimposition processing of two measured results associated with the switching.
摘要翻译：一种光纤的波长色散分布测量装置，包括用于产生具有不同波长的两个光信号的光信号产生部分1,2，用于组合信号和整形光脉冲信号的部分3,4，用于输入信号的方向耦合部分6 光脉冲信号到测量光纤的一端或另一端，并且还分支来自测量光纤的总反向散射光，波长提取部分9仅通过由相互作用产生的四波混合光之一的波长分量发射两个波长的测量部分10，用于测量波长色散分布数据的测量部分10，用于将光脉冲的输入侧和终端侧从测量光纤的一端切换到另一端的切换部分12-1至12-3，以及用于执行与切换相关联的两个测量结果的叠加处理的计算部分11。

8. 发明公开

EP1231459A2 Apparatus and method for Chromatic dispersion distribution measurement 审中-公开
标题翻译： Apparat und Vorrichtung zur Messung der Verteilung von chromatischer Dispersion
公开(公告)号：EP1231459A2
公开(公告)日：2002-08-14
申请号：EP02250573.9
申请日：2002-01-28
申请人： Ando Electric Co., Ltd.
发明人： Aoki, Shoichi , Ichikawa, Akio
IPC分类号： G01M11/00
CPC分类号： G01M11/3127 , G01M11/3163
摘要： A chromatic dispersion distribution measurement apparatus, comprises: a chromatic dispersion value calculation unit for calculating a plurality of actual chromatic dispersion values in an optical device at a plurality of wavelengths; and a chromatic dispersion interpolation unit for interpolating an expected chromatic dispersion value between the actual chromatic dispersion values calculated by the chromatic dispersion value calculation unit, in order to obtain a chromatic dispersion distribution as a function of wavelength.
摘要翻译：一种色散分布测量装置，包括：色散值计算单元，用于计算多个波长的光学装置中的多个实际色散值; 以及色散内插单元，用于内插由色散值计算单元计算的实际色散值之间的期望色散值，以获得作为波长的函数的色散分布。

9. 发明公开

EP1211499A2 Optical fiber chromatic dispersion distribution measuring apparatus and measuring method 审中-公开
标题翻译：装置，用于测量在光纤散射的颜色分布和相关联的测量方法
公开(公告)号：EP1211499A2
公开(公告)日：2002-06-05
申请号：EP01127496.6
申请日：2001-11-28
申请人： Ando Electric Co., Ltd.
发明人： Aoki, Shoichi , Nagashima, Shinya
IPC分类号： G01M11/00 , G01N21/17
CPC分类号： G01M11/3163
摘要： An apparatus for measuring the chromatic dispersion profile of an optical fiber using two light sources 1 and 2 at least one of which is tunable in wavelength, in which two light beams of different wavelengths from said two light sources are injected into a optical fiber under test 7 and the four-wave mixing light that is generated by interaction between said light beams of different wavelengths is measured with an optical time domain reflectometer (OTDR) 9, characterized in that an optical bandpass filter 8 having a fixed central frequency is provided at a stage upstream of said optical time domain reflectometer (OTDR).
摘要翻译：使用两个光源1和所有2的至少一个是在波长可调，其中从所述不同波长的两个光束的两个光源被注入到测试中的光纤测量光纤的色散曲线的装置 7和由不同波长的所述光束之间的相互作用所产生的四波混频灯被测量与光时域反射仪（OTDR）11，在光带通滤波器8确实为特征的具有固定的中心频率以提供所述光时域反射仪（OTDR）的阶段上游。

10. 发明公开

EP1236984A3 Chromatic dispersion distribution measurement apparatus and method for the same 审中-公开
标题翻译：装置和方法，用于测量色散分布
公开(公告)号：EP1236984A3
公开(公告)日：2004-01-21
申请号：EP02250758.6
申请日：2002-02-05
申请人： Ando Electric Co., Ltd.
发明人： Aoki, Shoichi , Ichikawa, Akio
IPC分类号： G01M11/00
CPC分类号： G01M11/3109
摘要： A chromatic dispersion distribution measurement apparatus, comprises: a power calculation unit for calculating a power value of an input light to be input into an optical device to be measured, in order to calculate a chromatic dispersion distribution in the optical device to be measured, in accordance with an output light power of an output light from the optical device to be measured as a function of a transmission distance along the optical device to be measured; and a control unit for controlling an input light power of the input light to the optical device to be measured in accordance with the power value of the input light which is calculated by the power calculation unit.

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