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1. 发明授权

US4859223A Method of manufacturing polarization-maintaining optical fibers 失效
标题翻译：制造偏振维持光纤的方法
公开(公告)号：US4859223A
公开(公告)日：1989-08-22
申请号：US141364
申请日：1988-01-05
申请人： Hiroshi Kajioka , Koudo Yamada , Yuuetsu Takuma , Tatsuo Teraoka
发明人： Hiroshi Kajioka , Koudo Yamada , Yuuetsu Takuma , Tatsuo Teraoka
IPC分类号： C03B37/014
CPC分类号： C03B37/01466 , C03B37/01493 , C03B2203/22 , C03B2203/30
摘要： Two opposite portions of the surface of a core rod whose section is circular are removed by machining in the longitudinal direction thereof, so that the section of the core rod is transformed into a non-circular shape. On the surface of the thusly shaped non-circular core rod, glass particulates are accumulated, and then the glass particulates accumulated on the core rod are sintered to create a preform. Then, the preform is heated and drawn, so that a polarization-maintaining optical fiber of non-circular section is obtained.
摘要翻译：通过在其纵向方向上的机械加工来除去截面为圆形的芯棒的表面的两个相对部分，使得芯棒的截面变成非圆形。在如此形成的非圆形芯棒的表面上，玻璃颗粒被堆积，然后将堆积在芯棒上的玻璃微粒烧结以形成预制件。然后，对预成型体进行加热拉拔，得到非圆形截面的偏振保持光纤。

2. 发明授权

US4818047A Polarized wave preserving fiber 失效
标题翻译：极化波保存纤维
公开(公告)号：US4818047A
公开(公告)日：1989-04-04
申请号：US91632
申请日：1987-09-01
申请人： Yuuetsu Takuma , Hiroshi Kajioka , Tatsuya Kumagai , Toshihide Tokunaga , Kohdo Yamada
发明人： Yuuetsu Takuma , Hiroshi Kajioka , Tatsuya Kumagai , Toshihide Tokunaga , Kohdo Yamada
IPC分类号： G02B6/024 , G02B6/10 , G02B6/22
CPC分类号： G02B6/105
摘要： A polarized wave preserving fiber has a core at its center, cladding, an oval jacket, and a support member in order to improve transmitting property of the polarized single mode by adjusting the refractive index distribution and the ellipticity of the oval jacket.
摘要翻译：偏振波保留光纤在其中心具有芯，包层，椭圆形护套和支撑构件，以便通过调节椭圆形护套的折射率分布和椭圆率来改善偏振单模的透射特性。

3. 发明授权

US5482525A Method of producing elliptic core type polarization-maintaining optical fiber 失效
标题翻译：椭圆型偏振保持光纤的制造方法
公开(公告)号：US5482525A
公开(公告)日：1996-01-09
申请号：US068645
申请日：1993-05-28
申请人： Hiroshi Kajioka , Kohdo Yamada , Masashi Nakamura , Kazuya Murakami , Yuuetsu Takuma
发明人： Hiroshi Kajioka , Kohdo Yamada , Masashi Nakamura , Kazuya Murakami , Yuuetsu Takuma
IPC分类号： C03B37/012 , C03B37/014 , C03C13/04 , G02B6/10 , C03B37/023
CPC分类号： C03B37/01217 , C03B37/01466 , C03B37/01493 , C03C13/04 , G02B6/105 , C03B2203/10 , C03B2203/12 , C03B2203/22 , C03B2203/30 , Y02P40/57
摘要： A method of producing an elliptic core type polarization-maintaining optical fiber comprises the steps of providing a glass rod comprising a cladding glass layer around the periphery of a core glass layer, the cladding glass layer having a softening point higher than the softening point of the core glass layer, removing two side surface portions of the glass rod by machining along the axial direction of the glass rod to form a machined rod noncircular in cross section, outside depositing fine silica glass particles on the periphery of the machined rod, followed by sintering to provide a support glass layer having a softening point higher than the softening point of the cladding glass layer, and drawing the thus obtained glass rod body as an optical fiber preform. Since the portion for constituting the core of the optical fiber is formed by machining, the core is permitted to have a high ellipticity. An optical fiber with the desired size and birefringence index is obtained by regulating the conditions of production.
摘要翻译：一种制造椭圆型偏振保持光纤的方法包括以下步骤：在芯玻璃层的周围设置包括包层玻璃层的玻璃棒，所述包层玻璃层的软化点高于软化点芯玻璃层，通过沿着玻璃棒的轴向的机械加工来除去玻璃棒的两个侧面部分，以形成横截面为非圆形的加工棒，在加工棒的周围沉积细二氧化硅玻璃颗粒，然后烧结提供软化点高于包层玻璃层的软化点的支撑玻璃层，并且将由此获得的玻璃棒体拉制成光纤预制件。由于通过机械加工形成用于构成光纤的芯的部分，所以允许芯具有高的椭圆率。通过调节生产条件获得具有所需尺寸和双折射指数的光纤。

4. 发明授权

US08922760B2 Defocused optical rotation measurement apparatus, optical rotation measurement method and defocused optical fiber system 有权
标题翻译：散焦光学旋转测量装置，光学旋转测量方法和散焦光纤系统
公开(公告)号：US08922760B2
公开(公告)日：2014-12-30
申请号：US13698988
申请日：2011-05-18
申请人： Hiroshi Kajioka
发明人： Hiroshi Kajioka
IPC分类号： G01N33/48 , G01N21/55 , A61B5/1455 , G01N21/59 , G01N21/21 , A61B5/145
CPC分类号： G01N21/55 , A61B5/14532 , A61B5/1455 , A61B5/14558 , G01N21/21 , G01N21/59 , G01N2201/08
摘要： There is provided an optical rotation measurement apparatus and a measuring system which are user-friendly, capable of measuring glucose concentration in drawn blood and living bodies with high accuracy in real time such that it is available for use at an actual medical site without depending on a reagent, and capable of measuring glucose concentration in a living body noninvasively with high accuracy, a new polarized light converting optical system that can be used for the measuring system, and an optical rotation measurement method using the optical system.The problems are resolved by inserting a non-reciprocal optical system sandwiching a specimen in an optical fiber ring interferometer, using input/output optical fibers of the non-reciprocal optical system, which are comprised of a large core diameter low NA single mode optical fiber, as an input/output part, connected via a mode-matching unit to a small core diameter and high NA polarization preserving fiber as a transmission part, and employing a defocused configuration without deploying the optical fiber ends at focal points of lenses.
摘要翻译：提供了一种用户友好的光学旋转测量装置和测量系统，能够实时高精度地测量抽取的血液和活体中的葡萄糖浓度，使其可以在实际的医疗场所使用而不依赖于能够高精度地测量生物体中的葡萄糖浓度的试剂，能够用于测定系统的新的偏振光转换光学系统和使用该光学系统的光学旋转测定方法。通过将不可逆的光学系统插入到光纤环形干涉仪中，使用不可逆光学系统的输入/输出光纤将大型芯径的低NA单模光纤作为输入/输出部分，通过模式匹配单元连接到小芯直径和高NA偏振保留光纤作为透射部分，并且采用散焦构造而不将光纤端部部署在透镜的焦点处。

5. 发明申请

US20130128262A1 DEFOCUSED OPTICAL ROTATION MEASUREMENT APPARATUS, OPTICAL ROTATION MEASUREMENT METHOD AND DEFOCUSED OPTICAL FIBER SYSTEM 有权
标题翻译：光学旋转测量装置，光学旋转测量方法和偏光光纤系统
公开(公告)号：US20130128262A1
公开(公告)日：2013-05-23
申请号：US13698988
申请日：2011-05-18
申请人： Hiroshi Kajioka
发明人： Hiroshi Kajioka
IPC分类号： G01N21/55 , G01N21/59
CPC分类号： G01N21/55 , A61B5/14532 , A61B5/1455 , A61B5/14558 , G01N21/21 , G01N21/59 , G01N2201/08
摘要： There is provided an optical rotation measurement apparatus and a measuring system which are user-friendly, capable of measuring glucose concentration in drawn blood and living bodies with high accuracy in real time such that it is available for use at an actual medical site without depending on a reagent, and capable of measuring glucose concentration in a living body noninvasively with high accuracy, a new polarized light converting optical system that can be used for the measuring system, and an optical rotation measurement method using the optical system.The problems are resolved by inserting a non-reciprocal optical system sandwiching a specimen in an optical fiber ring interferometer, using input/output optical fibers of the non-reciprocal optical system, which are comprised of a large core diameter low NA single mode optical fiber, as an input/output part, connected via a mode-matching unit to a small core diameter and high NA polarization preserving fiber as a transmission part, and employing a defocused configuration without deploying the optical fiber ends at focal points of lenses.
摘要翻译：提供了一种用户友好的光学旋转测量装置和测量系统，能够实时高精度地测量抽取的血液和活体中的葡萄糖浓度，使其可以在实际的医疗场所使用而不依赖于能够高精度地测量生物体中的葡萄糖浓度的试剂，能够用于测定系统的新的偏振光转换光学系统和使用该光学系统的光学旋转测定方法。通过将不可逆的光学系统插入到光纤环形干涉仪中，使用不可逆光学系统的输入/输出光纤将大型芯径的低NA单模光纤作为输入/输出部分，通过模式匹配单元连接到小芯直径和高NA偏振保留光纤作为透射部分，并且采用散焦构造而不将光纤端部部署在透镜的焦点处。

6. 发明授权

US4500168A Single polarization optical fibers 失效
标题翻译：单极化光纤
公开(公告)号：US4500168A
公开(公告)日：1985-02-19
申请号：US389265
申请日：1982-06-17
申请人： Hiroshi Kajioka , Toshihide Tokunaga , Junkichi Nakagawa
发明人： Hiroshi Kajioka , Toshihide Tokunaga , Junkichi Nakagawa
IPC分类号： C03B37/018 , G02B6/10 , G02B5/14
CPC分类号： G02B6/105 , C03B37/018 , C03B37/01861 , C03B2203/30
摘要： In the single polarization optical fiber of the present invention, an elliptical jacket is composed of SiO.sub.2 +P.sub.2 O.sub.5 +B.sub.2 O.sub.3, whereby increase in transmission loss at long wavelength band is prevented. In the process for fabricating single polarization optical fibers of the invention, a starting silica tube is subjected to pressure reduction with an amount of pressure reduction in response to concentration of dopants P.sub.2 O.sub.5 +B.sub.2 O.sub.3, whereby an ellipticity of the resulting elliptical jacket is made to be a pertinent value.
摘要翻译：在本发明的单极化光纤中，椭圆形护套由SiO2 + P2O5 + B2O3组成，从而防止了长波长带的传输损失的增加。在本发明的单极化光纤的制造方法中，起始二氧化硅管按照掺杂剂P2O5 + B2O3的浓度对减压量进行减压，由此使所得到的椭圆外套的椭圆率为相关价值。

7. 发明授权

US5701177A Method for detecting fault of optical fiber gyro and apparatus for diagnosing fault of the same 失效
标题翻译：检测光纤陀螺故障的方法及其故障诊断装置
公开(公告)号：US5701177A
公开(公告)日：1997-12-23
申请号：US795293
申请日：1997-02-04
申请人： Tatsuya Kumagai , Hiroshi Kajioka , Osamu Kobayashi , Munehiro Akiyama , Shigeru Oho , Hisao Sonobe
发明人： Tatsuya Kumagai , Hiroshi Kajioka , Osamu Kobayashi , Munehiro Akiyama , Shigeru Oho , Hisao Sonobe
IPC分类号： G01C25/00 , G01C19/72 , G01C19/64
CPC分类号： G01C19/721
摘要： A phase modulated light is propagated through an optical fiber sensing loop, from which a propagated light is obtained. The propagated light is converted to an electric signal, from which a fundamental wave component and even number harmonic wave components of a phase modulating signal for the phase modulated signal are detected. In accordance with the changes of the fundamental and even number harmonic wave components, fault is detected. On the other hand, the electric signal may be integrated to provide an integrated signal. In accordance with the comparison between the integrated signal and a fault reference voltage, the fault may be detected.
摘要翻译：相位调制光通过光纤感测环路传播，从中获得传播的光。传播的光被转换成电信号，从中检测相位调制信号的相位调制信号的基波分量和偶次谐波分量。根据基波和偶次谐波成分的变化，检测到故障。另一方面，电信号可以被集成以提供积分信号。根据集成信号与故障参考电压的比较，可以检测到故障。

8. 发明授权

US5677973A Method of aligning optical fiber to optical fiber or optical fiber to optical element at junction and optical fiber array 失效
标题翻译：将光纤与光纤或光纤对准光纤到光纤和光纤阵列的方法
公开(公告)号：US5677973A
公开(公告)日：1997-10-14
申请号：US497374
申请日：1995-06-30
申请人： Toshiya Yuhara , Hisao Iitsuka , Hiroshi Kajioka , Mamoru Ichimura , Tomohiro Murakami
发明人： Toshiya Yuhara , Hisao Iitsuka , Hiroshi Kajioka , Mamoru Ichimura , Tomohiro Murakami
IPC分类号： G02B6/30 , G02B6/38 , G02B6/42 , G02B6/36
CPC分类号： G02B6/4216 , G02B6/30 , G02B6/3812
摘要： The orientation of the rotating direction of an optical fiber in an optical fiber array takes the positional axial displacement into consideration. In a method of aligning the orientation of optical fibers, or the axial displacement in an optical fiber array having a plurality of optical fibers, and an optical fiber holding member, an enlarged image of the optical fiber is obtained for each of the optical fibers using an image pick-up means. Then, a distribution of the characterized image corresponding to the positions in the radial direction of the image of the optical fiber are obtained from the enlarged image. From the distribution of the characterized image, the orientation of the rotational direction to the center of the optical fiber, or the positional axial displacement of the core center, is measured. Based on the measured result, the orientation of the rotational direction, or the positional axial displacement to the holding member of the optical fiber, is aligned with an optical fiber rotating mechanism.
摘要翻译：光纤阵列中的光纤的旋转方向的取向考虑了位置轴向位移。在对准光纤的取向或具有多个光纤的光纤阵列中的轴向位移和光纤保持部件的方法中，对于每根光纤获得光纤的放大图像，使用图像拾取装置。然后，从放大图像中获得与光纤的图像的径向位置对应的特征图像的分布。根据特征图像的分布，测量旋转方向朝向光纤中心的方位，或芯中心的位置轴向位移。基于测量结果，旋转方向的取向或光纤的保持构件的位置轴向位移与光纤旋转机构对准。

9. 发明授权

US4848867A Rotary joint for polarization plane maintaining optical fibers 失效
标题翻译：用于偏振平面保持光纤的旋转接头
公开(公告)号：US4848867A
公开(公告)日：1989-07-18
申请号：US247784
申请日：1988-09-22
申请人： Hiroshi Kajioka , Toshio Fukahori , Noribumi Shiina , Hitoshi Morinaga
发明人： Hiroshi Kajioka , Toshio Fukahori , Noribumi Shiina , Hitoshi Morinaga
IPC分类号： G02B6/26 , G02B6/32 , G02B6/36 , G02B6/38
CPC分类号： G02B6/3812 , G02B6/32 , G02B6/3604
摘要： A rotary joint for polarization plane maintaining optical fibers which can couple two polarization plane maintaining optical fibers to each other while maintaining the polarization plane maintaining property. The rotary joint comprises a rotary member, a fixed member, two optical fiber collimators and a 1/2 wavelength plate for coupling a polarization plane maintaining optical fiber connected to the rotary member with another polarization plane maintaining optical fiber connected to the fixed member, and gears for rotating the 1/2 wavelength plate at a speed equal to one half the rotational speed of the polarization plane maintaining optical fiber on the rotary member side.
摘要翻译：一种用于维持偏振平面的光纤的旋转接头，其可以将维持光纤的两个偏振面彼此耦合，同时保持偏振面的维持性。旋转接头包括旋转构件，固定构件，两个光纤准直器和用于将维持连接到旋转构件的维持光纤的偏振面保持连接到固定构件的另一偏振面的1/2波长板，以及用于以等于将旋转构件侧保持光纤的偏振面的旋转速度的一半的速度旋转1/2波片的齿轮。

10. 发明授权

US4493530A Single polarization optical fibers 失效
标题翻译：单极化光纤
公开(公告)号：US4493530A
公开(公告)日：1985-01-15
申请号：US394889
申请日：1982-07-02
申请人： Hiroshi Kajioka , Toshihide Tokunaga , Junkichi Nakagawa
发明人： Hiroshi Kajioka , Toshihide Tokunaga , Junkichi Nakagawa
IPC分类号： C03B37/012 , C03B37/018 , C03C3/04 , C03C13/04 , G02B6/024 , G02B6/10 , G02B5/172
CPC分类号： G02B6/105
摘要： A single polarization optical fiber has an elliptical jacket composed of SiO.sub.2 +F.sub.2 O+P.sub.2 O.sub.5, whereby increase in transmission loss at a long wavelength band is prevented.
摘要翻译：单极化光纤具有由SiO 2 + F 2 O + P 2 O 5构成的椭圆形护套，能够防止长波长带的传输损失的增加。

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