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1. 发明专利

JP2005174993A Pulse fiber laser equipment 审中-公开
标题翻译：脉冲光纤激光设备
公开(公告)号：JP2005174993A
公开(公告)日：2005-06-30
申请号：JP2003408889
申请日：2003-12-08
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： YAMASHITA TAKAMASA , YOSHIDA MINORU , MURAYAMA MANABU
IPC分类号： H01S3/098 , H01S3/06 , H01S3/1055
摘要： PROBLEM TO BE SOLVED: To provide ultrashort pulse fiber laser equipment having high excitation efficiency and reliability. SOLUTION: Pulse fiber laser equipment is provided with an optical fiber amplification element 2 generating a laser beam, reflectors connected to the front part and the rear part of the optical fiber amplification element 2, and an energizing light source 4 for supplying excitation light to the optical fiber amplification element 2. The resonator 10 is constituted of the optical fiber amplification element 2 and the reflectors. At least one reflector is a fiber Bragg grating 3 having a saturable property. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有高激发效率和可靠性的超短脉冲光纤激光设备。
解决方案：脉冲光纤激光设备设置有产生激光束的光纤放大元件2，连接到光纤放大元件2的前部和后部的反射器以及用于提供激励的激励光源4 光耦合到光纤放大元件2.谐振器10由光纤放大元件2和反射器构成。至少一个反射器是具有饱和特性的光纤布拉格光栅3。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2005004128A Fiber connecting structure and connecting method 有权
标题翻译：光纤连接结构与连接方法
公开(公告)号：JP2005004128A
公开(公告)日：2005-01-06
申请号：JP2003170387
申请日：2003-06-16
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： MURAYAMA MANABU
IPC分类号： G02B6/255 , H01S3/06 , H01S3/10
摘要： PROBLEM TO BE SOLVED: To inhibit light leakage in a joined part in case where a double clad fiber with a first clad having an aspherical cross sectional contour of the fiber is connected to an optical fiber with a core having a spherical cross sectional contour of the fiber. SOLUTION: This method is the connecting structure of a double clad fiber for propagating exciting light between the double clad fiber and an optical fiber to be connected. The core 5 in the connecting boundary of the optical fiber to be connected and the first clad 2 in the connecting boundary of the double clad fiber are made to coincide with each other in the cross sectional contour of the fiber. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了抑制具有具有纤维非球面截面轮廓的第一包层的双包层纤维与具有球形横截面的芯的光纤连接的接合部中的光泄漏纤维轮廓。
解决方案：该方法是用于在双包层光纤和要连接的光纤之间传播激光的双包层光纤的连接结构。要连接的光纤的连接边界上的芯5和双包层光纤的连接边界中的第一包层2在纤维的横截面轮廓中彼此重合。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004029488A Fiber grating manufacturing device and manufacturing method 审中-公开
公开(公告)号：JP2004029488A
公开(公告)日：2004-01-29
申请号：JP2002187114
申请日：2002-06-27
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： MURAYAMA MANABU , TAKEDA TORU , FUJITA MORIYUKI
IPC分类号： G02B6/02 , G02B6/10 , G02B6/16
摘要： PROBLEM TO BE SOLVED: To provide a fiber grating manufacturing device in simple constitution which apodizes the refractive index modulation pattern of a grating so as to have various function shapes with one apodizing mask. SOLUTION: The fiber grating manufacturing device is provided with a fiber holding part, a light source for emitting grating write light, the apodizing mask 14, and a moving means for moving the apodizing mask 14 in a prescribed direction other than the extending direction of an optical fiber F. The apodizing mask 14 is provided with an opening part 14a for apodization formed so as to gradually increase an exposed fiber length by the grating write light from the light source from the center to both sides accompanying its movement. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2003029178A Method for manufacturing optical switch 审中-公开
标题翻译：制造光开关的方法
公开(公告)号：JP2003029178A
公开(公告)日：2003-01-29
申请号：JP2001217131
申请日：2001-07-17
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： MAEDA SHIGEO , ABE KAZUHIRO , MURAYAMA MANABU
IPC分类号： G02B26/08 , B81B3/00 , B81C1/00
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical switch, having a micromirror which has high precision of planarity of the mirror surface and that of perpendicularity to a silicon substrate surface. SOLUTION: The method for manufacturing an optical switch which has a mirror-forming substrate, where the micro mirror for reflection of an optical signal is formed in a substrate body as one body is provided with a step where a micromirror precursor is formed by RIE of the silicon substrate and a step where a mirror surface is formed on the micro mirror precursor through anisotropic wet etching of the silicon substrate, where the micro mirror precursor is formed.
摘要翻译：要解决的问题：提供一种具有微反射镜的光学开关的制造方法，该微镜具有高的镜面平面度和与硅衬底表面垂直的平面度精度。解决方案：具有镜面形成基板的光开关的制造方法，其特征在于，在作为一体的基板本体上形成有用于反射光信号的微反射镜的光学开关的制造方法，其特征在于，具备：通过RIE形成微镜前体的工序所述硅衬底和通过对形成所述微镜前体的所述硅衬底进行各向异性湿蚀刻在所述微镜前体上形成镜面的步骤。

5. 发明专利

JP2005085883A Optical fiber laser apparatus and pulsed light generator 审中-公开
标题翻译：光纤激光设备和脉冲发光器
公开(公告)号：JP2005085883A
公开(公告)日：2005-03-31
申请号：JP2003314235
申请日：2003-09-05
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： YAMASHITA TAKAMASA , YOSHIDA MINORU , MURAYAMA MANABU
IPC分类号： G02F1/01 , H01S3/06
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber laser apparatus for optical communication having functions to control a variation in output light beam of an optical fiber laser, generation of vertical mode, and to prevent reduction of gain and the modulating function. SOLUTION: An optical fiber 5 having an optical beam amplifying function is provided with a resonator 6 for generation of resonance of light beams within the fiber and a scattering generator 9 to generate light scattering within the fiber. The scattering generator 9 is set in the amount of the scattering so that the total loss of the resonator 6 including the scattering to be generated becomes lower than a gain generated in the optical fiber 5. With adequate setting in the amount of the scattering, the number of times of the generation of a longitudinal mode can be controlled. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种具有控制光纤激光器的输出光束变化的功能的光通信用光纤激光装置，产生垂直方式，防止增益减小和调制功能。解决方案：具有光束放大功能的光纤5设置有用于产生光纤内的光束共振的谐振器6和散射发生器9，以在光纤内产生光散射。散射发生器9被设置为散射量，使得包括要产生的散射的谐振器6的总损耗变得低于在光纤5中产生的增益。通过适当地设定散射量，可以控制生成纵向模式的次数。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005004129A Fiber connecting structure and connecting method 审中-公开
标题翻译：光纤连接结构与连接方法
公开(公告)号：JP2005004129A
公开(公告)日：2005-01-06
申请号：JP2003170390
申请日：2003-06-16
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： MURAYAMA MANABU , YOSHIDA MINORU , MAEDA JUNYA , TAKAI SHINJI
IPC分类号： G02B6/255
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber connecting method that facilitates connection between optical fibers with different outer diameters in fusion splicing by electric discharge. SOLUTION: This method is a connecting method between a double clad fiber 20 and a multi-mode fiber 30 having a diameter smaller than that of the double clad fiber 20. The method consists of a fiber end working process in which the end face of the double clad fiber 20 is etched so that the fiber diameter is nearly equalized to that of the multi-mode fiber 30 and a fiber connecting process in which splicing is performed by abutting the etched fiber end of the double clad fiber 20 on the fiber end of the multi-mode fiber 30. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种通过放电熔接来促进具有不同外径的光纤之间的连接的光纤连接方法。
解决方案：该方法是双包层光纤20和直径小于双包层光纤20的直径的多模光纤30之间的连接方法。该方法包括光纤端部工作过程，其中端部蚀刻双包层光纤20的表面，使得纤维直径几乎与多模光纤30相同，纤维连接工艺通过将双包层光纤20的蚀刻光纤端部抵接在多模光纤30的光纤端。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004341448A Optical device using double clad fiber 有权
公开(公告)号：JP2004341448A
公开(公告)日：2004-12-02
申请号：JP2003140913
申请日：2003-05-19
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： MAEDA JUNYA , YOSHIDA MINORU , MURAYAMA MANABU , TAKAI SHINJI
IPC分类号： G02B6/036 , G02B6/02 , G02B6/032 , G02B6/10 , H01S3/06 , H01S3/10 , G02B6/22 , G02B6/20
摘要： PROBLEM TO BE SOLVED: To provide an optical device in which excited light is surely made incident at a high incident efficiency into a first clad 12 of a double clad fiber 1 in which a second clad 13 is composed in a porous structure. SOLUTION: An incident region in which the exciting light propagates is formed, which is connected to a multimode type optical fiber stretched from an external exciting light source, at the incident end of a double clad fiber 2 having a single mode core 21 in which an amplifying medium is doped, a first clad 22 which covers the periphery of the single mode core 21 and a second clad 23 which is composed of a porous structure including a lot of fine pores 23a and covers the periphery the first clad 22. A non-tapered part which is formed with an outer diameter which is the same as the outer diameter of the multimode type optical fiber and a tapered part which is converged to the outer diameter of the first clad of the double clad fiber of the non-tapered part are formed on the incident end side of the incident region. COPYRIGHT: (C)2005,JPO&NCIPI

8. 发明专利

JP2004252057A Clad mode removing method for double-clad fiber, double-clad fiber, and fiber amplifying device 审中-公开
公开(公告)号：JP2004252057A
公开(公告)日：2004-09-09
申请号：JP2003041082
申请日：2003-02-19
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： HACHIWAKA MASAYOSHI , YOSHIDA MINORU , MURAYAMA MANABU , MAEDA JUNYA , KANEYA DAISUKE
IPC分类号： G02B6/036 , G02B6/02 , G02B6/032 , G02B6/10 , H01S3/10 , G02B6/22 , G02B6/20
CPC分类号： H01S3/06754 , G02B6/03688 , H01S3/06729 , H01S3/06741
摘要： PROBLEM TO BE SOLVED: To provide a clad removing method for a double-clad fiber that easily and surely remove a clad mode. SOLUTION: Exciting light (clad mode) 12 incident on a 1st clad 2 of the double-clad fiber 100 is propagated in the 1st clad 2 while reflected by the interface 6 between the 1st clad 2 and a 2nd clad 3 and signal light 11 is amplified when the light passes through a core 1. Holes 4, 4, ..., in the 2nd clad 3 nearby a projection end are filled with a filler 5 which has a higher refractive index than quartz. At the filled part, the exciting light 12 is not reflected by the interface 6, but passes through the 2nd clad 3 to be emitted from the fiber 100 outside. The effective refractive index of at least a portion of the 2nd clad is made larger than the refractive index of the 1st clad, so remaining exciting light (clad mode) can surely and easily be removed. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2004205566A Photosensitive optical fiber 审中-公开
公开(公告)号：JP2004205566A
公开(公告)日：2004-07-22
申请号：JP2002371176
申请日：2002-12-24
申请人： Mitsubishi Cable Ind Ltd , 三菱電線工業株式会社
发明人： HASEGAWA YASUHIRO , MURAYAMA MANABU , YOSHIDA MINORU , MAEDA JUNYA
IPC分类号： G02B5/18 , G02B6/00 , G02B6/02 , G02B6/10 , G02B6/16
摘要： PROBLEM TO BE SOLVED: To provide a photosensitive optical fiber which can have an excellent fiber grating formed even when a core is thermally diffused. SOLUTION: The photosensitive optical fiber which has the core and a clad covering the outer periphery of the core and has the fiber grating formed by irradiation with ultraviolet rays is characterized in that the core contains a photosensitive dopant increasing a refractive index and an assistant dopant increasing the refractive index increase sensitivity of the photosensitive dopant and a domain of the clad which is close to the core contains the assistant dopant. COPYRIGHT: (C)2004,JPO&NCIPI

10. 发明专利

JP2007279289A Laser guide 审中-公开
标题翻译：激光指南
公开(公告)号：JP2007279289A
公开(公告)日：2007-10-25
申请号：JP2006104119
申请日：2006-04-05
申请人： Mitsubishi Cable Ind Ltd , Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社 , 三菱電線工業株式会社
发明人： MURAYAMA MANABU , YAMAZAKI MOTOHIKO , SATAKE TAKESHI , ISHIDA TOMOHIKO , AKAHA TAKASHI , TSUBOTA SHUHO , ISHIDE TAKASHI
IPC分类号： G02B6/42
摘要： PROBLEM TO BE SOLVED: To provide a laser guide in which an optical fiber is easily fusion-welded with a block-shaped chip to enhance productivity.
SOLUTION: The laser guide 10 is provided with the optical fiber 22a for laser guide and the block-shaped chip 36 connected to at least one end of the optical fiber. The block-shaped chip 36 is formed in a shape that the diameter decreases towards the end connected to the fiber.
COPYRIGHT: (C)2008,JPO&INPIT

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