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1. 发明授权

US5946439A Single-mode optical fiber 失效
标题翻译：单模光纤
公开(公告)号：US5946439A
公开(公告)日：1999-08-31
申请号：US989403
申请日：1997-12-12
申请人： Yoshiaki Terasawa , Yosuke Yamazaki , Fumiyoshi Ohkubo , Takatoshi Kato
发明人： Yoshiaki Terasawa , Yosuke Yamazaki , Fumiyoshi Ohkubo , Takatoshi Kato
IPC分类号： G02B6/036 , G02B6/22
CPC分类号： G02B6/02009 , G02B6/03633 , G02B6/02276
摘要： This invention relates to a single-mode optical fiber having a configuration for effectively reducing bending loss. In the single-mode optical fiber, while an optical core is constituted by inner and outer cores, an optical cladding is constituted by an inner cladding in which "tailing" occurs and an outer cladding. In particular, in a cross section of the optical fiber perpendicular to the signal light guiding direction, when the surface integral values of relative refractive index difference of the optical cladding and optical core with respect to the outer cladding having an average refractive index n.sub.0 are respectively S1 and S2, the optical fiber satisfies a relationship of S1/S2.gtoreq.0.8.
摘要翻译：本发明涉及具有有效减少弯曲损耗的结构的单模光纤。在单模光纤中，当光芯由内核和外芯构成时，光学包层由其中发生“拖尾”的内包层和外包层构成。特别地，在垂直于信号光引导方向的光纤的横截面中，当光学包层和光纤芯相对于具有平均折射率n0的外包层的相对折射率差的表面积分值分别为 S1和S2，光纤满足S1 / S2> / = 0.8的关系。

2. 发明申请

US20100111486A1 DISPERSION COMPENSATING MODULE 审中-公开
标题翻译：分散补偿模块
公开(公告)号：US20100111486A1
公开(公告)日：2010-05-06
申请号：US12611461
申请日：2009-11-03
申请人： Tetsuya HAYASHI , Eisuke SASAOKA , Kazuya KUWAHARA , Takashi SASAKI , Yasushi KOYANO , Fumiyoshi OHKUBO , Shinjiro HAGIHARA
发明人： Tetsuya HAYASHI , Eisuke SASAOKA , Kazuya KUWAHARA , Takashi SASAKI , Yasushi KOYANO , Fumiyoshi OHKUBO , Shinjiro HAGIHARA
IPC分类号： G02B6/00
CPC分类号： G02B6/4457 , G02B6/02214
摘要： The present invention relates to a dispersion compensating module having a configuration that can effectively suppress high-speed fluctuations in the polarization state of light even when being imparted with impact or vibration. In the dispersion compensating module, a dispersion compensating optical fiber is fixed while being wound around the barrel of a bobbin, and the bobbin is fixed in the inside of a housing via a buffer that absorbs impact or vibration. The bobbin corresponds to a holder holding the dispersion compensating optical fiber fixed in a state of coil. The housing corresponds to a struct fixing the holder. The buffer fills a space between the housing and the bobbin on which the dispersion compensating optical fiber is coiled.
摘要翻译：本发明涉及一种具有能够有效地抑制光的偏振状态的高速波动的色散补偿模块，即使被施加冲击或振动。在色散补偿模块中，色散补偿光纤被缠绕在绕线筒的筒体上是固定的，并且线轴通过吸收冲击或振动的缓冲器固定在壳体的内部。线轴对应于固定在线圈状态的保持色散补偿光纤的保持架。外壳对应于固定支架的结构。缓冲器填充壳体和卷绕有色散补偿光纤的线轴之间的空间。

3. 发明授权

US07324756B2 Optical demultiplexer and optical transmission system 有权
标题翻译：光解复用器和光传输系统
公开(公告)号：US07324756B2
公开(公告)日：2008-01-29
申请号：US10407935
申请日：2003-04-07
申请人： Masato Tanaka , Toshiaki Okuno , Fumiyoshi Ohkubo
发明人： Masato Tanaka , Toshiaki Okuno , Fumiyoshi Ohkubo
IPC分类号： H04J14/02
CPC分类号： H04J14/0224 , H04J14/06
摘要： It is an object of the present invention to provide an optical transmission system in which multiple optical frequencies can be efficiently used and the change of the system can be easily made, and to provide an optical demultiplexer suitable for such optical transmission system. In an optical demultiplexer according to the present invention, signal light having a plurality of wavelength components arranged on a grid having predetermined frequency intervals is input from an input port thereof to be demultiplexed. The demultiplexed signal lights output from the output ports thereof have a plurality of wavelength components, respectively, and any three wavelength components, fa, fb, and fd, that satisfy the following conditions: fa
摘要翻译：本发明的目的是提供一种可以有效利用多个光频率并且可以容易地进行系统改变的光传输系统，并且提供一种适用于这种光传输系统的光解复用器。在根据本发明的光解复用器中，从其输入端口输入具有布置在具有预定频率间隔的网格上的多个波长分量的信号光，以被解复用。从其输出端口输出的解复用的信号光分别具有多个波长分量，并且任何三个波长分量，f a，b，f b， d ，满足以下条件：f 并且f 具有以下关系：2f＆lt; b＆gt;＆lt;＆lt; 其中N表示整数，Deltaf表示每个预定频率间隔。

4. 发明授权

US07874725B2 Optical fiber temperature distribution measuring apparatus, method for measuring optical fiber temperature distribution, and optical fiber temperature distribution measuring system 有权
标题翻译：光纤温度分布测量装置，光纤温度分布测量方法和光纤温度分布测量系统
公开(公告)号：US07874725B2
公开(公告)日：2011-01-25
申请号：US12083689
申请日：2007-09-21
申请人： Hidehiko Komeda , Tsuyoshi Igi , Yasushi Koyano , Fumiyoshi Ohkubo , Kazuaki Negishi
发明人： Hidehiko Komeda , Tsuyoshi Igi , Yasushi Koyano , Fumiyoshi Ohkubo , Kazuaki Negishi
IPC分类号： G01K11/00 , G01K1/00 , G01K15/00 , G01J5/00
CPC分类号： G01K11/32 , G01K2011/324
摘要： An optical fiber temperature distribution measuring apparatus and a method for measuring optical fiber temperature distribution, provided with a light source for inputting a pulse light to an optical fiber to be measured, a signal detecting unit for detecting a received light intensity of a predetermined light included in a backscattering light generated by an input of the pulse light in the optical fiber to be measured, and a signal processing unit for calculating a value corresponding to a variation of the received light intensity due to a hydrogen molecular absorption of the optical fiber to be measured based on the received light intensity of the predetermined light, to compensate the received light intensity of the predetermined light corresponding to a temperature of the optical fiber to be measured based on the value.
摘要翻译：一种光纤温度分布测量装置和一种测量光纤温度分布的方法，设置有用于向待测光纤输入脉冲光的光源，用于检测包括的预定光的接收光强度的信号检测单元在由待测光纤中的脉冲光的输入产生的后向散射光中，以及信号处理单元，用于计算与由于光纤的氢分子吸收所引起的接收光强度的变化相对应的值基于预定光的接收光强度来测量，以基于该值来补偿与待测光纤的温度相对应的预定光的接收光强度。

5. 发明授权

US5913005A Single-mode optical fiber 失效
标题翻译：单模光纤
公开(公告)号：US5913005A
公开(公告)日：1999-06-15
申请号：US15505
申请日：1998-01-29
申请人： Yoshiaki Terasawa , Takatoshi Kato , Fumiyoshi Ohkubo , Yosuke Yamazaki
发明人： Yoshiaki Terasawa , Takatoshi Kato , Fumiyoshi Ohkubo , Yosuke Yamazaki
IPC分类号： G02B6/028 , G02B6/036 , G02B6/18
CPC分类号： G02B6/02009 , G02B6/02238 , G02B6/0286 , G02B6/03633
摘要： The present invention relates to an S-mode optical fiber having a structure which can effectively restrain dispersion slope from increasing. In this S-mode optical fiber, an optical core is constituted by inner and outer cores, while an optical cladding is constituted by an inner cladding in which "tailing" occurs and an outer cladding. In a cross section of the S-mode optical fiber perpendicular to its signal light propagating direction, when surface integral values of relative refractive index difference with respect to a reference region having an average refractive index n.sub.0 are S1 and S2 in the optical cladding and optical core, respectively, the S-mode optical fiber is designed to satisfy a relationship of 0
摘要翻译：本发明涉及具有能够有效地抑制色散斜率增加的结构的S模式光纤。在该S模式光纤中，光纤芯由内芯和外芯构成，而光学包层由发生“拖尾”的内包层和外包层构成。在垂直于其信号光传播方向的S模式光纤的横截面中，当相对于平均折射率n0的参考区域的相对折射率差的表面积分值在光学包层和光学器件中为S1和S2时核心，S模式光纤被设计为满足0

6. 发明申请

US20090059996A1 Optical Fiber Temperature Distribution Measuring Apparatus, Method for Measuring Optical Fiber Temperature Distribution, and Optical Fiber Temperature Distribution Measuring System 有权
标题翻译：光纤温度分布测量装置，光纤温度分布测量方法和光纤温度分布测量系统
公开(公告)号：US20090059996A1
公开(公告)日：2009-03-05
申请号：US12083689
申请日：2007-09-21
申请人： Hidehiko Komeda , Tsuyoshi Igi , Yasushi Koyano , Fumiyoshi Ohkubo , Kazuaki Negishi
发明人： Hidehiko Komeda , Tsuyoshi Igi , Yasushi Koyano , Fumiyoshi Ohkubo , Kazuaki Negishi
IPC分类号： G01K11/12
CPC分类号： G01K11/32 , G01K2011/324
摘要： An optical fiber temperature distribution measuring apparatus and a method for measuring optical fiber temperature distribution, provided with a light source for inputting a pulse light to an optical fiber to be measured, a signal detecting unit for detecting a received light intensity of a predetermined light included in a backscattering light generated by an input of the pulse light in the optical fiber to be measured, and a signal processing unit for calculating a value corresponding to a variation of the received light intensity due to a hydrogen molecular absorption of the optical fiber to be measured based on the received light intensity of the predetermined light, to compensate the received light intensity of the predetermined light corresponding to a temperature of the optical fiber to be measured based on the value.
摘要翻译：一种光纤温度分布测量装置和一种测量光纤温度分布的方法，设置有用于向待测光纤输入脉冲光的光源，用于检测包括的预定光的接收光强度的信号检测单元在由待测光纤中的脉冲光的输入产生的后向散射光中，以及信号处理单元，用于计算与由于光纤的氢分子吸收所引起的接收光强度的变化相对应的值基于预定光的接收光强度来测量，以基于该值来补偿与待测光纤的温度相对应的预定光的接收光强度。

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