公开(公告)号：US09176295B2

公开(公告)日：2015-11-03

申请号：US13381469

申请日：2011-06-09

申请人： Itaru Sakabe ,  Kazuyuki Soma ,  Tomoyuki Hattori ,  Kenichiro Ohtsuka ,  Masakazu Shigehara

发明人： Itaru Sakabe ,  Kazuyuki Soma ,  Tomoyuki Hattori ,  Kenichiro Ohtsuka ,  Masakazu Shigehara

IPC分类号： G02B6/44 ,  G02B6/38

CPC分类号： G02B6/448 ,  G02B6/3885

摘要： The stranded optical cable 10 includes a plurality of stranded multicore optical cables 12 and a cable sheath 16 covering the multicore optical cables 12, each multicore optical cable 12 including at least two of optical units 13 as a pair and a unit sheath 14 covering the optical units 13, each optical unit 13 being formed by bundling a plurality of optical fibers. And, parts of the cable sheath corresponding to both ends of the stranded optical cable 10 are removed to expose the multicore optical cables 12 certain lengths so that the optical connectors 21 are connected to the multicore optical cables 12, respectively.

摘要翻译： 绞合的光缆10包括多根绞合的多芯光缆12和覆盖多芯光缆12的电缆护套16，每个多芯光缆12包括一对光学单元13和至少两个光学单元13， 单元13，每个光学单元13通过捆扎多根光纤而形成。 并且，去除对应于绞合光缆10的两端的电缆护套的部分，以使多芯光缆12暴露一定长度，使得光连接器21分别连接到多芯光缆12。

公开(公告)号：US07534031B2

公开(公告)日：2009-05-19

申请号：US11791365

申请日：2006-10-05

申请人： Yoshinori Yamamoto ,  Itaru Sakabe ,  Eisuke Sasaoka

发明人： Yoshinori Yamamoto ,  Itaru Sakabe ,  Eisuke Sasaoka

IPC分类号： G01J5/00

CPC分类号： G01K11/32

摘要： The temperature measuring device of the present invention comprises: a light source for outputting light; an optical fiber to which light outputted by the light source is inputted and from which Brillouin scattered light is outputted; a detection unit for detecting a spectrum of the Brillouin scattered light; a judgment unit for judging whether or not a frequency shift of the spectrum of the Brillouin scattered light detected by the detection unit belongs to a specific region in which the rate of change of the frequency shift with respect to the temperature of the optical fiber is smaller than a predetermined value; and an analysis unit for, when the judgment unit judges that the frequency shift does not belong to the specific region, analyzing the temperature in use of the frequency shift, and for, when the judgment unit judges that the frequency shift belongs to the specific region, not performing analysis, or analyzing the temperature in use of at least the linewidth of the spectrum of the Brillouin scattered light detected by the detection means.

摘要翻译： 本发明的温度测量装置包括：用于输出光的光源; 输入光源输出的光并输出布里渊散射光的光纤; 用于检测布里渊散射光的光谱的检测单元; 判断单元，用于判断由检测单元检测到的布里渊散射光的频谱的频移是否属于频移相对于光纤的温度的变化率较小的特定区域 超过预定值; 以及分析单元，用于当判断单元判定频移不属于特定区域时，分析使用频移的温度，并且当判断单元判断频移属于特定区域时 ，不进行分析，或分析至少使用由检测装置检测的布里渊散射光的光谱的线宽的温度。

公开(公告)号：US06744954B1

公开(公告)日：2004-06-01

申请号：US09441559

申请日：1999-11-17

申请人： Shigeru Tanaka ,  Eisuke Sasaoka ,  Itaru Sakabe ,  Takeo Tsurumi ,  Yasushi Ito

发明人： Shigeru Tanaka ,  Eisuke Sasaoka ,  Itaru Sakabe ,  Takeo Tsurumi ,  Yasushi Ito

IPC分类号： G02B644

CPC分类号： G02B6/4427 ,  G02B6/4433

摘要： The present invention relates to a wide-band, low-loss, submarine optical cable excellent in productivity, an optical fiber unit employed in the submarine optical cable, and a method of making the optical fiber unit. The optical fiber unit employed in the submarine optical cable comprises a loose structure in which one or more coated optical fibers are accommodated together with a soft resin in a space formed within a plastic support. In particular, one or more compression members are embedded in the plastic support along the space accommodating the coated optical fibers. The compression members closely in contact with the plastic support prevents the shrinkage of the plastic support from occurring due to temperature changes before forming a cable utilizing the optical fiber unit. Preventing the shrinkage of the plastic support from occurring before forming the cable suppresses the increase in surplus length ratio of the accommodated coated optical fibers, thereby effectively restraining the transmission loss of the submarine optical cable from increasing due to the increase in surplus length ratio.

摘要翻译： 本发明涉及生产率优良的宽带，低损耗海底光缆，在海底光缆中使用的光纤单元以及制造光纤单元的方法。 在海底光缆中使用的光纤单元包括松散结构，其中一个或多个涂覆的光纤与柔性树脂一起容纳在形成在塑料支撑体内的空间中。 特别地，一个或多个压缩构件沿着容纳涂覆光纤的空间嵌入在塑料支撑件中。 紧密地与塑料支撑件接触的压缩构件防止在形成利用光纤单元的电缆之前由于温度变化而发生塑料支撑件的收缩。 防止在形成电缆之前发生塑料支撑件的收缩，抑制了被容纳的被覆光纤的多余长度比的增加，从而有效地抑制了由于冗余长度比的增加导致的海底光缆的传输损耗的增加。

公开(公告)号：US20130084048A1

公开(公告)日：2013-04-04

申请号：US13248313

申请日：2011-09-29

申请人： Itaru SAKABE ,  Kazuyuki Soma ,  Tomoyuki Hattori

发明人： Itaru SAKABE ,  Kazuyuki Soma ,  Tomoyuki Hattori

IPC分类号： G02B6/028

CPC分类号： G02B6/0288 ,  G02B6/03627

摘要： The present invention relates to a multi-mode optical fiber having a structure to reduce the numerical aperture at the emission end of the multi-mode optical fiber having a length for which practical use is assumed. The multi-mode optical fiber comprises a core portion, a trench portion, and a cladding portion. The multi-mode optical fiber is designed such that the numerical aperture at the emission end thereof is reduced as the fiber length increases, and moreover such that the numerical aperture of the multi-mode optical fiber having a length for which practical use is assumed satisfies a specific condition. By this means, the numerical aperture at the emission end of the multi-mode optical fiber can be kept small, and coupling efficiency of the multi-mode optical fiber with other optical components is drastically improved.

摘要翻译： 本发明涉及一种多模光纤，其具有减小多模光纤发射端的数值孔径的结构，其具有实际使用的长度。 多模光纤包括芯部分，沟槽部分和包层部分。 多模光纤被设计为使得其发射端的数值孔径随着光纤长度的增加而减小，而且具有实际使用长度的多模光纤的数值孔径满足 具体情况。 通过这种方式，可以将多模光纤的发射端的数值孔径保持较小，并且显着提高多模光纤与其它光学部件的耦合效率。

公开(公告)号：US20120177329A1

公开(公告)日：2012-07-12

申请号：US13321967

申请日：2011-04-18

申请人： Itaru Sakabe ,  Kazuyuki Sohma ,  Tomoyuki Hattori ,  Takashi Takada ,  Toshiaki Kakii

发明人： Itaru Sakabe ,  Kazuyuki Sohma ,  Tomoyuki Hattori ,  Takashi Takada ,  Toshiaki Kakii

IPC分类号： G02B6/028 ,  G02B6/44

CPC分类号： G02B6/02033 ,  C03C25/105 ,  C03C25/106 ,  G02B1/048

摘要： A coated plastic cladding optical fiber and an optical fiber cable, in which a transmission loss caused when this coated fiber or this fiber cable is bent in a small radius is small, and which can be used sufficiently as a USB cable or a HDMI cable in a high speed transmission, are provided.The coated plastic cladding optical fiber 1 has a cladding layer 3 that is formed on an outer periphery of a core glass 2 made of a quartz glass and formed of a polymer resin whose refractive index is lower than core glass, and a resin coating layer 5 that is formed on an outer periphery of the cladding layer 3 and is formed of a thermosetting resin. Then, a diameter of the core glass 2 is set to 50 to 100 μm, and a relative index difference of the core glass 2 to the cladding layer 3 is set to 3.7% or more.

摘要翻译： 涂覆的塑料包覆光纤和光纤电缆，其中当该涂覆的光纤或该光纤电缆以小的半径弯曲时引起的传输损耗小，并且可以充分地用作USB电缆或HDMI电缆 提供高速传输。 涂覆塑料包覆光纤1具有形成在由石英玻璃制成并由折射率低于芯玻璃的聚合物树脂形成的芯玻璃2的外周上的覆层3和树脂涂层5 其形成在包覆层3的外周上并且由热固性树脂形成。 然后，将芯玻璃2的直径设定为50〜100μm，将芯玻璃2与包层3的相对折射率差设定为3.7％以上。

公开(公告)号：US08184937B2

公开(公告)日：2012-05-22

申请号：US12526440

申请日：2008-01-29

申请人： Itaru Sakabe ,  Eisuke Sasaoka ,  Tomoyuki Hattori

发明人： Itaru Sakabe ,  Eisuke Sasaoka ,  Tomoyuki Hattori

IPC分类号： G02B6/036 ,  G02B6/02

CPC分类号： G02B6/4432 ,  C03C25/106 ,  G02B6/0288 ,  G02B6/4436 ,  G02B6/4482

摘要： The present invention relates to an optical cable with a structure for improving a durability performance. The optical cable comprises, as a basic structure: a coated optical fiber, and a cable jacket covering an outer periphery of the coated optical fiber. The coated optical fiber is constituted by a glass fiber and a coating layer of an ultraviolet curing resin. To realize excellent impact resistance as durability performance, the coating layer of the coated optical fiber includes a first coating with a Young's modulus of 200 MPa or more. Meanwhile, the cable jacket is comprised of a thermoplastic resin that does not contain any halogens. The cable jacket has a thickness of 0.7 mm or more, a flame retardancy of V2 or more according to UL Standards, and a Young's modulus equal to or greater than that of the first coating.

摘要翻译： 本发明涉及具有提高耐久性能的结构的光缆。 光缆包括作为基本结构的涂覆光纤，以及覆盖被覆光纤的外周的电缆护套。 被覆光纤由玻璃纤维和紫外线固化树脂的被覆层构成。 为了实现作为耐久性的优异的耐冲击性，涂布光纤的涂层包括杨氏模量为200MPa以上的第一涂层。 同时，电缆护套由不含任何卤素的热塑性树脂组成。 电缆护套的厚度为0.7mm以上，根据UL标准的阻燃性为V2以上，杨氏模量等于或大于第一涂层的杨氏模量。

公开(公告)号：US20100322572A1

公开(公告)日：2010-12-23

申请号：US12526440

申请日：2008-01-29

申请人： Itaru Sakabe ,  Eisuke Sasaoka ,  Tomoyuki Hattori

发明人： Itaru Sakabe ,  Eisuke Sasaoka ,  Tomoyuki Hattori

IPC分类号： G02B6/44

CPC分类号： G02B6/4432 ,  C03C25/106 ,  G02B6/0288 ,  G02B6/4436 ,  G02B6/4482

摘要： The present invention relates to an optical cable with a structure for improving a durability performance. The optical cable comprises, as a basic structure: a coated optical fiber, and a cable jacket covering an outer periphery of the coated optical fiber. The coated optical fiber is constituted by a glass fiber and a coating layer of an ultraviolet curing resin. To realize excellent impact resistance as durability performance, the coating layer of the coated optical fiber includes a first coating with a Young's modulus of 200 MPa or more. Meanwhile, the cable jacket is comprised of a thermoplastic resin that does not contain any halogens. The cable jacket has a thickness of 0.7 mm or more, a flame retardancy of V2 or more according to UL Standards, and a Young's modulus equal to or greater than that of the first coating.

摘要翻译： 本发明涉及具有提高耐久性能的结构的光缆。 光缆包括作为基本结构的涂覆光纤，以及覆盖被覆光纤的外周的电缆护套。 被覆光纤由玻璃纤维和紫外线固化树脂的被覆层构成。 为了实现作为耐久性的优异的耐冲击性，涂布光纤的涂层包括杨氏模量为200MPa以上的第一涂层。 同时，电缆护套由不含任何卤素的热塑性树脂组成。 电缆护套的厚度为0.7mm以上，根据UL标准的阻燃性为V2以上，杨氏模量等于或大于第一涂层的杨氏模量。

公开(公告)号：US07543982B2

公开(公告)日：2009-06-09

申请号：US11665823

申请日：2006-09-29

申请人： Yoshinori Yamamoto ,  Itaru Sakabe ,  Eisuke Sasaoka ,  Hisashi Tanji

发明人： Yoshinori Yamamoto ,  Itaru Sakabe ,  Eisuke Sasaoka ,  Hisashi Tanji

IPC分类号： G01K3/00

CPC分类号： G01L1/243 ,  G01B11/18 ,  G01D5/35348 ,  G01K11/32 ,  G01M11/083

摘要： The present invention relates to a sensor or the like having a structure that enables accurate temperature measurement in a wide temperature range including a low-temperature region and is suitable for independently and accurately determining temperature variations and strains appearing in an object to be measured. The sensor comprises a laser light source, a sensor section that has a plurality of waveguides transmitting a laser light from the laser light source therethrough, a detecting section, and an analyzing section. The detecting section detects a plurality of Brillouin spectra obtained from the sensor section. The analyzing section determines at least one measurement value of a temperature in the sensor section and a strain generated in the sensor section, based on fluctuations of parameters defining the respective detected Brillouin spectra. In particular, the sensor section has a structure such that the variation of the Brillouin spectrum in response to a disturbance differs between the waveguides. Thus, by simultaneously monitoring the Brillouin spectra that varying a different manner in a plurality of waveguides, it is possible not only to measure accurately the temperature in a wide temperature range including a low-temperature region, but also to make distinction between the strain and temperature.

摘要翻译： 本发明涉及具有能够在包括低温区域的宽温度范围内进行精确的温度测量的结构的传感器等，并且适用于独立且精确地确定出现在被测量物体中的温度变化和应变。 传感器包括激光光源，传感器部分，其具有透射来自激光光源的激光的多个波导，检测部和分析部。 检测部分检测从传感器部分获得的多个布里渊频谱。 基于定义相应检测到的布里渊光谱的参数的波动，分析部分确定传感器部分中的温度的至少一个测量值和在传感器部分中产生的应变。 特别地，传感器部分具有使得响应于干扰的布里渊频谱的变化在波导之间不同的结构。 因此，通过同时监视在多个波导中改变不同方式的布里渊光谱，不仅可以在包括低温区域的宽温度范围内精确地测量温度，而且可以区分应变和 温度。

公开(公告)号：US06654527B2

公开(公告)日：2003-11-25

申请号：US10270265

申请日：2002-10-15

申请人： Itaru Sakabe ,  Nobuhiro Akasaka ,  Masayoshi Yamano

发明人： Itaru Sakabe ,  Nobuhiro Akasaka ,  Masayoshi Yamano

IPC分类号： G02B644

CPC分类号： G02B6/4432

摘要： An optical fiber cable having excellent workability and long-term reliability. The cable comprises at least one optical fiber, a plastic jacket covering the optical fiber or optical fibers, and at least one anti-shrink member embedded in the jacket. The jacket has a longitudinal shrinkage of at most 0.5% when heated at 110° C. for two hours. The cable has a remaining bend with a radius of curvature of at least 100 mm when wound on a 50-mm-radious mandrel and heated at 85° C. for two hours. The deflection of a 30-cm-long cantilever made of the cable is at least 50 mm. In one aspect of the cable, the cable is specified by the conditions of ESt/ESj≧0.7, EIt/EIc≧0.1, and EIc/Mc≦8×106 mm3 (E: Young's modulus; S: cross-sectional area; t: total of anti-shrink members; j: jacket; I: geometrical moment of inertia; c: cable; and M: mass).

摘要翻译： 一种具有优异的可加工性和长期可靠性的光纤电缆。 电缆包括至少一个光纤，覆盖光纤或光纤的塑料护套，以及嵌入护套中的至少一个抗收缩构件。 当在110℃下加热2小时时，护套的纵向收缩率至多为0.5％。 当在50毫米辐射心轴上缠绕并在85℃下加热2小时时，电缆具有至少100mm的曲率半径的剩余弯曲。 由电缆制成的30厘米长的悬臂的偏转至少为50毫米。 在电缆的一个方面，电缆由ESt / ESj> = 0.7，EIt / EIc> = 0.1和EIc / Mc <= 8X10 <6> mm 3的条件（E：杨氏模量; S ：横截面积; t：抗收缩构件总数; j：护套; I：几何惯性矩; c：电缆; M：质量）。

公开(公告)号：US08634687B2

公开(公告)日：2014-01-21

申请号：US13321967

申请日：2011-04-18

申请人： Itaru Sakabe ,  Kazuyuki Sohma ,  Tomoyuki Hattori ,  Takashi Takada ,  Toshiaki Kakii

发明人： Itaru Sakabe ,  Kazuyuki Sohma ,  Tomoyuki Hattori ,  Takashi Takada ,  Toshiaki Kakii

IPC分类号： G02B6/02

CPC分类号： G02B6/02033 ,  C03C25/105 ,  C03C25/106 ,  G02B1/048

摘要： A coated plastic cladding optical fiber and an optical fiber cable, in which a transmission loss caused when this coated fiber or this fiber cable is bent in a small radius is small, and which can be used sufficiently as a USB cable or a HDMI cable in a high speed transmission, are provided.The coated plastic cladding optical fiber 1 has a cladding layer 3 that is formed on an outer periphery of a core glass 2 made of a quartz glass and formed of a polymer resin whose refractive index is lower than core glass, and a resin coating layer 5 that is formed on an outer periphery of the cladding layer 3 and is formed of a thermosetting resin. Then, a diameter of the core glass 2 is set to 50 to 100 μm, and a relative index difference of the core glass 2 to the cladding layer 3 is set to 3.7% or more.

摘要翻译： 涂覆的塑料包覆光纤和光纤电缆，其中当该涂覆的光纤或该光纤电缆以小的半径弯曲时引起的传输损耗小，并且可以充分地用作USB电缆或HDMI电缆 提供高速传输。 涂覆塑料包覆光纤1具有形成在由石英玻璃制成并由折射率低于芯玻璃的聚合物树脂形成的芯玻璃2的外周上的覆层3和树脂涂层5 其形成在包覆层3的外周上并且由热固性树脂形成。 然后，将芯玻璃2的直径设定为50〜100μm，将芯玻璃2与包覆层3的相对折射率差设定为3.7％以上。