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1. 发明授权

US6008487A Optical-fiber inspection device 失效
标题翻译：光纤检测装置
公开(公告)号：US6008487A
公开(公告)日：1999-12-28
申请号：US39944
申请日：1998-03-16
申请人： Yoshihiko Tachikawa , Yoshihiro Sampei , Takaaki Hirata , Makoto Komiyama , Yasuyuki Suzuki , Mamoru Arihara
发明人： Yoshihiko Tachikawa , Yoshihiro Sampei , Takaaki Hirata , Makoto Komiyama , Yasuyuki Suzuki , Mamoru Arihara
IPC分类号： G01M11/00 , H01J5/16
CPC分类号： G01M11/3172
摘要： In the primary invention of this application, an optical-fiber inspection device which detects the distance to a reflection point within the DUT and the amount of reflected light by dividing into two a laser beam which is possible to be frequency-swept, making one of the divided light beams incident to an optical detector via the reference light path, while making the other of the divided light beams incident to the DUT and making the light reflected within the DUT incident to the said optical detector, and analyzing the frequency of the interference signal for the two beams obtained by the optical detector, is configured so that the final reference light is obtained by providing an optical coupler in the reference light path and, after taking out a part of the reference light and making it pass through an optical frequency shifter, combining this again with the original reference light with the said optical coupler.
摘要翻译：在本申请的第一个发明中，一种光纤检查装置，其检测到DUT内的反射点的距离和通过分成两个可能被频率扫描的激光束的反射光的量，使得通过参考光路入射到光学检测器的分束光束，同时使分离的光束中的另一个入射到DUT并使在DUT中反射的光入射到所述光学检测器，并且分析干扰的频率由光检测器获得的两束光信号被配置为使得最终参考光通过在参考光路中提供光耦合器而获得，并且在取出一部分参考光并使其通过光频率移位器，再次与原来的参考光与所述光耦合器组合。

2. 发明授权

US5844235A Optical frequency domain reflectometer for use as an optical fiber testing device 失效
标题翻译：光频域反射计用作光纤测试装置
公开(公告)号：US5844235A
公开(公告)日：1998-12-01
申请号：US727377
申请日：1996-09-27
申请人： Yoshihiko Tachikawa , Yoshihiro Sampei , Takaaki Hirata , Makoto Komiyama , Yasuyuki Suzuki , Mamoru Arihara
发明人： Yoshihiko Tachikawa , Yoshihiro Sampei , Takaaki Hirata , Makoto Komiyama , Yasuyuki Suzuki , Mamoru Arihara
IPC分类号： G01M11/00 , H01J5/16
CPC分类号： G01M11/3172
摘要： In the primary invention of this application, an optical-fiber inspection device which detects the distance to a reflection point within the DUT and the amount of reflected light by dividing into two a laser beam which is possible to be frequency-swept, making one of the divided light beams incident to an optical detector via the reference light path, while making the other of the divided light beams incident to the DUT and making the light reflected within the DUT incident to the said optical detector, and analyzing the frequency of the interference signal for the two beams obtained by the optical detector, is configured so that the final reference light is obtained by providing an optical coupler in the reference light path and, after taking out a part of the reference light and making it pass through an optical frequency shifter, combining this again with the original reference light with the said optical coupler.
摘要翻译： PCT No.PCT / JP96 / 00170 Sec。 371日期1996年9月27日第 102（e）1996年9月27日PCT PCT 1996年1月30日PCT公布。公开号WO96 / 24038 日期1996年8月8日在本申请的主要发明中，检测与DUT内的反射点的距离的光纤检查装置和通过分为两个可能是频率的激光束的反射光量，扫描，使分离的光束中的一个通过参考光路入射到光学检测器，同时使分离的光束中的另一个入射到DUT并使在DUT内反射的光入射到所述光学检测器，并且分析由光学检测器获得的两个光束的干涉信号的频率被配置为使得最终参考光通过在参考光路中提供光耦合器而获得，并且在取出参考光的一部分并使其通过光学移频器，再次与原来的参考光与所述光耦合器结合。

3. 发明授权

US5933235A Optical spectrum analyzer and spectrometer 失效
标题翻译：光谱分析仪和光谱仪
公开(公告)号：US5933235A
公开(公告)日：1999-08-03
申请号：US836505
申请日：1997-05-07
申请人： Yoshihiro Sampei , Yasuyuki Suzuki , Yoshihiko Tachikawa , Mamoru Arihara
发明人： Yoshihiro Sampei , Yasuyuki Suzuki , Yoshihiko Tachikawa , Mamoru Arihara
IPC分类号： G01J3/28
CPC分类号： G01J3/2803
摘要： A first invention of the present application is an optical spectrum analyzer comprising a spectrometer apparatus an arithmetic unit for calculating the center wavelength from output signals from photo detector devices of a device array included in the spectrometer apparatus and from the light power distribution at an incident port by interpolation and for calculating the total power, and a display unit for displaying values of the center wavelength and total power. The dispersing device directs light introduced from the incident port at the dispersing device. Light going out of the dispersing device is focused onto the device array. In this structure, the outputs (theoretical values) from the photo detector devices are calculated. Where the n-th device of the device array producing a maximum output deviates from the center of the outgoing beam impinging on the device array by an amount of .DELTA.x, the relation between the deviation .DELTA.x and the associated photo detector device is found in advance. If values are obtained by actual measurements, .DELTA.x is found from the above relation. Then, the center wavelength is found. Also, the total power can be calculated from the theoretical values of the outputs from the photo detector devices and from the values obtained by actual measurements.
摘要翻译： PCT No.PCT / JP96 / 00612 Sec。 371日期1997年5月7日 102（e）日期1997年5月7日PCT提交1996年3月12日PCT公布。公开号WO96 / 28713 日期1996年9月19日本申请的第一发明是一种光谱分析仪，其包括光谱仪装置，用于从包括在光谱仪装置中的器件阵列的光检测器装置的输出信号和光功率计算中心波长的算术单元并且用于计算总功率;以及显示单元，用于显示中心波长和总功率的值。分散装置将从入射口引入的光引导到分散装置。从分散装置出来的光聚焦到装置阵列上。在该结构中，计算来自光检测器装置的输出（理论值）。在产生最大输出的器件阵列的第n个器件偏离入射束撞击器件阵列一定量的DELTA x的偏转中心时，偏差DELTA x和相关的光电探测器器件之间的关系见于提前。如果通过实际测量获得值，则可以从上述关系中找到DELTA x。然后，找到中心波长。此外，总功率可以从光电检测器装置的输出的理论值和通过实际测量获得的值计算。

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