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公开(公告)号：US08724101B2
公开(公告)日：2014-05-13
申请号：US12918263
申请日：2009-02-20
CPC分类号： G01M11/332 , G01D5/35348 , G01M11/3145 , G01M11/33 , G01M11/333 , G01M11/334 , G01M11/39
摘要： An optical fiber characteristic measuring device of the present invention includes: a light source which emits laser light modulated at a predetermined modulation frequency; an incident section which causes the laser light from the light source as continuous light and pulsed light to be incident from one end and other end of an optical fiber respectively; a timing adjuster which causes light emitted from the optical fiber to pass therethrough at a predetermined timing; and a light detector which detects the light which passes through the timing adjuster, and measures a characteristic of the optical fiber by using a detection result of the light detector, and the device includes: a synchronous detector which synchronously detects the detection result of the light detector by using a synchronization signal having a predetermined frequency; and a frequency setter which changes the frequency of the synchronization signal in a case where the modulation frequency at the light source is an integer multiple of the frequency of the synchronous signal.
摘要翻译： 本发明的光纤特性测量装置包括：发射以预定调制频率调制的激光的光源; 使来自光源的激光作为连续光和脉冲光从光纤的一端和另一端入射的入射部分; 定时调节器，其使得从光纤发射的光在预定的时刻通过; 以及光检测器，其检测通过定时调节器的光，并且通过使用光检测器的检测结果来测量光纤的特性，并且该器件包括：同步检测器，其同步地检测光的检测结果 检测器，通过使用具有预定频率的同步信号; 以及频率设定器，其在光源处的调制频率为同步信号的频率的整数倍的情况下，改变同步信号的频率。
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公开(公告)号：US20110032517A1
公开(公告)日：2011-02-10
申请号：US12918263
申请日：2009-02-20
IPC分类号： G01N21/00
CPC分类号： G01M11/332 , G01D5/35348 , G01M11/3145 , G01M11/33 , G01M11/333 , G01M11/334 , G01M11/39
摘要： An optical fiber characteristic measuring device of the present invention includes: a light source which emits laser light modulated at a predetermined modulation frequency; an incident section which causes the laser light from the light source as continuous light and pulsed light to be incident from one end and other end of an optical fiber respectively; a timing adjuster which causes light emitted from the optical fiber to pass therethrough at a predetermined timing; and a light detector which detects the light which passes through the timing adjuster, and measures a characteristic of the optical fiber by using a detection result of the light detector, and the device includes: a synchronous detector which synchronously detects the detection result of the light detector by using a synchronization signal having a predetermined frequency; and a frequency setter which changes the frequency of the synchronization signal in a case where the modulation frequency at the light source is an integer multiple of the frequency of the synchronous signal.
摘要翻译： 本发明的光纤特性测量装置包括：发射以预定调制频率调制的激光的光源; 使来自光源的激光作为连续光和脉冲光从光纤的一端和另一端入射的入射部分; 定时调节器，其使得从光纤发射的光在预定的时刻通过; 以及光检测器，其检测通过定时调节器的光，并且通过使用光检测器的检测结果来测量光纤的特性，并且该器件包括：同步检测器，其同步地检测光的检测结果 检测器，通过使用具有预定频率的同步信号; 以及频率设定器，其在光源处的调制频率为同步信号的频率的整数倍的情况下，改变同步信号的频率。
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