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1. 发明授权

US06608955B2 Optical fiber and laser machining apparatus 失效
公开(公告)号：US06608955B2
公开(公告)日：2003-08-19
申请号：US10052494
申请日：2002-01-23
申请人： Keiichiro Fukuda , Takemi Hasegawa , Masaharu Mogi
发明人： Keiichiro Fukuda , Takemi Hasegawa , Masaharu Mogi
IPC分类号： G02B602
CPC分类号： G02B6/02328 , C03C13/04 , G02B6/02333 , G02B6/02347 , G02B6/02361
摘要： An optical fiber has a core region and a cladding region surrounding the core region. The core region and the cladding region are made of a base material containing silica glass as a principal component. A plurality of holes extending along an axial direction are arranged at least in the cladding region. In the optical fiber, the base material has a hydroxyl mole fraction of not less than 10 ppm, or a fluorine content of not less than 0.2% by weight.

2. 发明授权

US08654320B2 Beam Path Monitoring Device and Beam Path Monitoring System 有权
标题翻译：光束路径监测装置和光束路径监测系统
公开(公告)号：US08654320B2
公开(公告)日：2014-02-18
申请号：US12995252
申请日：2009-05-25
申请人： Takemi Hasegawa , Tetsuya Hayashi , Haruo Nakaji
发明人： Takemi Hasegawa , Tetsuya Hayashi , Haruo Nakaji
IPC分类号： G01N21/00
CPC分类号： G01M11/3136 , G01M11/3145
摘要： An optical line monitoring apparatus and optical line monitoring system which can measure a reflectance distribution in an optical line with a high spatial resolution in a short time are provided. An optical line monitoring apparatus 14A provided in a station 10A comprises an OCDR measurement section 15 for carrying out OCDR measurement, an OTDR measurement section 16 for carrying out OTDR measurement, an optical switch 13 for selectively connecting one of the OCDR measurement section 15 and OTDR measurement section 16 to the optical coupler 12, a control section 17, and a storage device 18. The control section 17 performs a predetermined arithmetic operation according to an OCDR measurement result acquired by causing the OCDR measurement section 15 to carry out the OCDR measurement and an OTDR measurement result acquired by causing the OTDR measurement section 16 to carry out the OTDR measurement.
摘要翻译：提供了一种能够在短时间内以高空间分辨率测量光线路中的反射率分布的光线路监视装置和光线路监视系统。设置在站10A中的光线路监视装置14A包括用于执行OCDR测量的OCDR测量部分15，用于执行OTDR测量的OTDR测量部分16，用于选择性地连接OCDR测量部分15和OTDR之一的光开关13 测量部分16到光耦合器12，控制部分17和存储装置18.控制部分17根据通过使OCDR测量部分15执行OCDR测量而获得的OCDR测量结果执行预定的算术运算，并且通过使OTDR测量部16执行OTDR测量而获得的OTDR测量结果。

3. 发明申请

US20110155709A1 LASER PROCESSING APPARATUS AND PROCESSING METHOD EMPLOYED THEREIN 失效
标题翻译：激光加工设备及其加工方法
公开(公告)号：US20110155709A1
公开(公告)日：2011-06-30
申请号：US13054459
申请日：2009-06-18
申请人： Eiichiro Yamada , Akira Inoue , Koji Nakazato , Hiroshi Kohda , Hitoshi Hatayama , Takemi Hasegawa
发明人： Eiichiro Yamada , Akira Inoue , Koji Nakazato , Hiroshi Kohda , Hitoshi Hatayama , Takemi Hasegawa
IPC分类号： B23K26/00
CPC分类号： G02B6/04 , B23K26/032 , B23K2101/40 , G01N21/95684
摘要： A laser processing apparatus 1 includes a processing light source 3 emitting processing light; an observation light emitting unit 4 emitting observation light; optical fibers 19 conducting light having a plurality of wavelengths generated at an electronic component 2; a detecting unit 5 detecting the light conducted by the optical fibers 19; and a control unit 31 controlling a light emitting state of the processing light emitting unit 3. The optical fibers 19 are categorized into four groups, and disposed so as to surround an optical fiber 18 conducting the processing light. The optical fibers 19 categorized into the four groups are capable of conducting the observation light to the electronic component 2 every group.
摘要翻译：激光加工装置1包括发出处理光的处理光源3; 发射观察光的观察发光单元4; 在电子部件2处产生具有多个波长的光的光纤19; 检测由光纤19传导的光的检测单元5; 以及控制处理用发光单元3的发光状态的控制单元31.光纤19分为四组，并且设置成围绕进行处理光的光纤18。分为四组的光纤19能够每组观察光到电子部件2。

4. 发明授权

US07777891B2 Elasticity and viscosity measuring apparatus 有权
标题翻译：弹性和粘度测量仪器
公开(公告)号：US07777891B2
公开(公告)日：2010-08-17
申请号：US12067439
申请日：2006-09-20
申请人： Takemi Hasegawa
发明人： Takemi Hasegawa
IPC分类号： G01B9/02
CPC分类号： A61B5/0059 , A61B5/0066 , G01N21/4795 , G01N2021/638
摘要： Brillouin scattered light is used to measure the distribution of elasticity and viscosity in a measurement object without contact and in a noninvasive and simpler manner. Measuring light emitted from a light source is directed from a light probe onto a measurement object, and scattered light is received by the light probe. A control computer analyzes the light spectrum of scattered light received by the light probe, calculates at least one parameter selected from the center frequency and the linewidth of the elastic wave scattered components as viscoelastic information, matches the viscoelastic information with the position of a target area in the measurement object, and outputs image information. The position information of the target area in the measurement object is acquired by photographing light spots of guide light with a camera provided to the light probe.
摘要翻译：布里渊散射光用于测量测量对象中弹性和粘度的分布，无接触和非侵入性和简单性。从光源发出的测量光从光探针引导到测量对象上，并且光探针接收散射光。控制计算机分析由光探测器接收的散射光的光谱，计算从弹性波散射分量的中心频率和线宽中选择的至少一个参数作为粘弹性信息，将粘弹性信息与目标区域的位置相匹配并且输出图像信息。测量对象中的目标区域的位置信息通过用设置在光探测器上的照相机拍摄引导光的光点来获得。

5. 发明申请

US20090073453A1 ELASTICITY AND VISCOSITY MEASURING APPARATUS 有权
标题翻译：弹性和粘度测量装置
公开(公告)号：US20090073453A1
公开(公告)日：2009-03-19
申请号：US12067439
申请日：2006-09-20
申请人： Takemi Hasegawa
发明人： Takemi Hasegawa
IPC分类号： G01N21/49
CPC分类号： A61B5/0059 , A61B5/0066 , G01N21/4795 , G01N2021/638
摘要： Brillouin scattered light is used to measure the distribution of elasticity and viscosity in a measurement object without contact and in a noninvasive and simpler manner. Measuring light emitted from a light source is directed from a light probe onto a measurement object, and scattered light is received by the light probe. A control computer analyzes the light spectrum of scattered light received by the light probe, calculates at least one parameter selected from the center frequency and the linewidth of the elastic wave scattered components as viscoelastic information, matches the viscoelastic information with the position of a target area in the measurement object, and outputs image information. The position information of the target area in the measurement object is acquired by photographing light spots of guide light with a camera provided to the light probe.
摘要翻译：布里渊散射光用于测量测量对象中弹性和粘度的分布，无接触和非侵入性和简单性。从光源发出的测量光从光探针引导到测量对象上，并且光探针接收散射光。控制计算机分析由光探测器接收的散射光的光谱，计算从弹性波散射分量的中心频率和线宽中选择的至少一个参数作为粘弹性信息，将粘弹性信息与目标区域的位置相匹配并且输出图像信息。测量对象中的目标区域的位置信息通过用设置在光探测器上的照相机拍摄引导光的光点来获得。

6. 发明授权

US06718105B2 Optical fiber 有权
标题翻译：光纤
公开(公告)号：US06718105B2
公开(公告)日：2004-04-06
申请号：US09790986
申请日：2001-02-23
申请人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
发明人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
IPC分类号： G02B602
CPC分类号： G02B6/02357 , G02B6/02004 , G02B6/02261
摘要： In an optical fiber including a core region and a cladding region surrounding said core region in a cross section and having a cross-sectional structure in which a plurality of regions constituted by sub mediums are arranged in main mediums, at least one of refractive indices of the main mediums and the sub mediums are changed in a radial direction.
摘要翻译：在包括芯部区域和围绕所述芯部区域的包层区域的光纤中，在横截面中具有横截面结构的多个区域结构，其中由主介质构成多个由副介质构成的区域，折射率为主介质和副介质在径向方向上变化。

7. 发明授权

US06606440B2 Microstructured optical fiber 有权
标题翻译：微结构光纤
公开(公告)号：US06606440B2
公开(公告)日：2003-08-12
申请号：US09842053
申请日：2001-04-26
申请人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
发明人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
IPC分类号： G02B602
CPC分类号： G02B6/02328 , G02B6/02338 , G02B6/02361 , G02B6/266
摘要： In an optical fiber having a core region and a cladding region which surrounds the core region, wherein a plurality of regions made of sub mediums having refractive index different from that of the main medium constituting the cladding region are spaced apart in cross section of the cladding region and the mean refractive index of the core region is lower than that of the cladding region, the sub-medium regions are regularly arranged in the radial direction of said optical fiber such that the light having given wavelength, propagation coefficient and electric field distribution propagates along the fiber axis and has not less than 50% of a total propagating power in the core region, and this arrangement does not have translational symmetry in cross section.
摘要翻译：在具有芯区域和围绕芯区域的包层区域的光纤中，其中由覆盖区域的主介质的折射率不同的副介质的多个区域在包层的横截面中间隔开芯区域的平均折射率低于包层区域的平均折射率，子介质区域规则地布置在所述光纤的径向方向上，使得具有给定波长，传播系数和电场分布的光传播沿着纤维轴线具有不小于核心区域中的总传播功率的50％，并且该布置在横截面中不具有平移对称性。

8. 发明申请

US20140071434A1 OPTICAL TOMOGRAPHIC IMAGE ACQUISITION APPARATUS 审中-公开
标题翻译：光学图像摄影装置
公开(公告)号：US20140071434A1
公开(公告)日：2014-03-13
申请号：US14118515
申请日：2012-05-17
申请人： Masato Tanaka , Takemi Hasegawa , Hiroshi Suganuma , Ichiro Sogawa
发明人： Masato Tanaka , Takemi Hasegawa , Hiroshi Suganuma , Ichiro Sogawa
IPC分类号： G01B9/02
CPC分类号： G01B9/02091 , A61B5/0066 , A61B5/7207 , G01B9/02044 , G01B9/02077
摘要： The optical tomographic image acquisition apparatus is based on FD-OCT. A detection unit 50A which detects interference light includes a lens 51, a reflection type diffraction grating 52A, a deflection unit 53, a lens 54), and a light receiving unit 55. The interference light collimated by the lens 51 is divided by the reflection type diffraction grating 52A. Light of each wavelength is output in a different direction according to the wavelength, deflected by the deflection unit 53, and focused on a light receiving surface of the light receiving unit 55 by the lens 54. The optical tomographic image of the object is acquired based on a correspondence relationship between a light radiation position for the object and a deflection angle by the deflection unit 53 and on optical power distribution detected by the light receiving unit 55.
摘要翻译：光学断层图像采集装置基于FD-OCT。检测干涉光的检测单元50A包括透镜51，反射型衍射光栅52A，偏转单元53，透镜54）和光接收单元55.由透镜51准直的干涉光被反射型衍射光栅52A。每个波长的光根据由偏转单元53偏转的波长沿不同的方向输出，并且由透镜54聚焦在光接收单元55的光接收表面上。基于物体的光学断层图像被基于关于物体的光辐射位置和偏转单元53的偏转角度之间的对应关系以及由光接收单元55检测到的光功率分布。

9. 发明申请

US20080063346A1 Optical fiber and optical fiber device 有权
标题翻译：光纤和光纤设备
公开(公告)号：US20080063346A1
公开(公告)日：2008-03-13
申请号：US11896999
申请日：2007-09-07
申请人： Tetsuya Nakanishi , Takemi Hasegawa , Masaaki Hirano
发明人： Tetsuya Nakanishi , Takemi Hasegawa , Masaaki Hirano
IPC分类号： G02B6/02 , G02B6/00
CPC分类号： G02B6/03627 , C03C13/046 , G02B6/02028 , G02B6/02242 , G02F1/3515 , G02F1/395 , H01S3/06716 , H01S3/302 , H01S2301/02
摘要： An optical fiber and an optical fiber device, which can suppress generation of the stimulated Brillouin scattering while maintaining large nonlinearity. The fiber includes a central core which is made of SiO2 as a main component and contains Al2O3 at concentration of 15 wt % or more. The fiber is allowed to propagate only a fundamental mode and has an absolute value of chromatic dispersion of 5 ps/nm/km or less at a predetermined wavelength. The device includes the fiber having the above composition. The fiber guides first light and second light having different wavelengths to propagate therethrough such that the first light and the second light interact with each other by a nonlinear optical phenomenon during the propagation, thus causing the fiber to output the first light or the second light modulated by the nonlinear optical phenomenon or third light newly produced by the nonlinear optical phenomenon and having a different wavelength.
摘要翻译：一种光纤和光纤器件，其可以抑制受激布里渊散射的产生，同时保持非常大的非线性。该纤维包括以SiO 2主要成分为主成分并含有15重量％浓度的Al 2 O 3 O 3的中心芯，或更多。允许光纤仅传播基本模式，并且在预定波长下具有5ps / nm / km或更小的色散的绝对值。该装置包括具有上述组成的纤维。纤维引导具有不同波长的第一光和第二光传播通过其中，使得第一光和第二光在传播期间通过非线性光学现象彼此相互作用，从而使光纤输出第一光或第二光调制由非线性光学现象或由非线性光学现象新产生的具有不同波长的第三光。

10. 发明授权

US06915053B2 Microstructured optical fiber and optical module 有权
标题翻译：微结构光纤和光模块
公开(公告)号：US06915053B2
公开(公告)日：2005-07-05
申请号：US10417141
申请日：2003-04-17
申请人： Takemi Hasegawa
发明人： Takemi Hasegawa
IPC分类号： G02B6/036 , C03B37/00 , C03C13/04 , G02B6/02 , G02B6/028 , G02B6/26
CPC分类号： G02B6/02333 , C03C13/04 , G02B6/02028 , G02B6/02233 , G02B6/02242 , G02B6/02357 , G02B6/02361 , G02B6/02376
摘要： A microstructured optical fiber is structured with a core region and a plurality of cladding regions surrounding the core region. Chromatic dispersion is relatively flat over a broad wavelength range with a small effective area, without need for air holes that are unacceptably small. An enlarged effective core area is obtained by selectively closing the holes in the innermost cladding, which holes are smaller and easier to close than the holes in other regions.
摘要翻译：微结构光纤被构造为具有芯区域和围绕芯区域的多个包层区域。色散在宽波长范围内相对平坦，具有小的有效面积，而不需要不可接受的小的气孔。通过选择性地封闭最内层包层中的孔，这些孔比其它区域中的孔更小，更容易闭合，获得了扩大的有效核心区域。

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