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1. 发明专利

JP2005247621A Method of manufacturing optical fiber with vacancy 有权
标题翻译：使用VACANCY制造光纤的方法
公开(公告)号：JP2005247621A
公开(公告)日：2005-09-15
申请号：JP2004059123
申请日：2004-03-03
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , HATTORI TAKASHI , OSONO KAZUMASA
IPC分类号： G02B6/00 , C03B37/025 , C03B37/027 , G02B6/032 , G02B6/20
CPC分类号： C03B37/02781 , C03B37/0253 , C03B2203/14 , C03B2205/10 , Y02P40/57
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an optical fiber with vacancy which has vacancy having a desired diameter by measuring the diameter of the vacancy on real time during the drawing of a preform. SOLUTION: The method of manufacturing the optical fiber 1 with vacancy which has the vacancy 4 extended to the longitudinal direction of the optical fiber includes a process of imparting a prescribed physical change to the optical fiber 1 during a drawing process of the preform 14, measuring the amount of the physical change and measuring the diameter of the pores in the optical fiber 1 based on the resultant amount of the physical change. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种通过在预成型件拉制期间实时测量空位的直径来制造具有空位的具有所需直径的空位的光纤的方法。解决方案：制造具有延伸到光纤的纵向的空位4的具有空位的光纤1的方法包括在预成型件的拉伸处理期间向光纤1施加规定的物理变化的过程 14，基于物理变化的量，测量物理变化量并测量光纤1中的孔的直径。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2004226539A Optical fiber and its manufacturing method 审中-公开
公开(公告)号：JP2004226539A
公开(公告)日：2004-08-12
申请号：JP2003012328
申请日：2003-01-21
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , OSONO KAZUMASA , YO HEI , OSUGA KAZUSHI
IPC分类号： G02B6/032 , C03B37/012 , G02B6/02 , G02B6/10 , G02B6/20
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber having an improved bending characteristic and its manufacturing method. SOLUTION: In forming the optical fiber 10-1 having a wholly fiber structure, a preform 100 is formed in such a manner that the inner diameter of a vacancy 10h attains the inner diameter within a range from ≥3 to ≤10 μm. The effect of confining the light of a core 10cr is thereby improved and the bending characteristic of the optical fiber 10-1 is improved. COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2004085970A Photonic crystal optical fiber and manufacturing method therefor 有权
公开(公告)号：JP2004085970A
公开(公告)日：2004-03-18
申请号：JP2002248166
申请日：2002-08-28
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 中沢正隆 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , OMURA KENJI , KUROSAWA YOSHINORI
IPC分类号： G02B6/00 , C03B37/027 , G02B6/032 , G02B6/20
CPC分类号： C03B37/02745 , C03B2203/14 , C03B2203/20 , C03B2203/36 , C03B2203/42 , C03B2205/06
摘要： PROBLEM TO BE SOLVED: To provide a photonic crystal optical fiber whose polarization mode is reduced and to provide a manufacturing method therefor. SOLUTION: Since a plurality of voids 13 are arranged spirally in a clad 12 around a core 11 as a center axis, polarization mode dispersion is reducible nearly as much as a case wherein the sectional shape of the photonic crystal optical fiber 3 is circular and concentric even if the refractive index of the photonic crystal optical fiber 3 is radially uneven or if the sectional shape of the photonic crystal optical fiber 3 is distorted. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2003307653A Connector for photonic crystal optical fiber and manufacturing method thereof 审中-公开
标题翻译：光电晶体光纤连接器及其制造方法
公开(公告)号：JP2003307653A
公开(公告)日：2003-10-31
申请号：JP2002114986
申请日：2002-04-17
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , MURAKAMI KAZUYA
IPC分类号： G02B6/38 , G02B6/00 , G02B6/02 , G02B6/032 , G02B6/10 , G02B6/20
摘要： PROBLEM TO BE SOLVED: To provide a connector for a photonic crystal optical fiber, which dust or the like near its end face is prevented from entering its circular opening during and after the polishing and which is easily cleaned, and also to provide its manufacturing method. SOLUTION: The photonic crystal optical fiber 302 which is inserted into and fixed to a connector ferrule 306 is solid near its end face; therefore, no abrasive material nor polishing dust enters the circular opening 303 through the end face 302a, thereby causing no damage nor shear drop. In addition, dust stuck after the polishing is prevented from entering the circular opening 303 through the end face 302, with the cleaning made easy. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供一种用于光子晶体光纤的连接器，其在端面附近的灰尘等被防止在抛光期间和之后进入其圆形开口并且易于清洁，并且还提供其制造方法。解决方案：插入并固定到连接器套圈306的光子晶体光纤302在其端面附近是固体的; 因此，没有研磨材料和抛光灰尘通过端面302a进入圆形开口303，从而不产生损伤或剪切下降。此外，通过端面302防止在抛光后粘附的灰尘进入圆形开口303，从而容易进行清洁。版权所有（C）2004，JPO

5. 发明专利

JP2005250022A Plastic holey fiber and its manufacturing method 有权
标题翻译：塑料孔纤维及其制造方法
公开(公告)号：JP2005250022A
公开(公告)日：2005-09-15
申请号：JP2004059120
申请日：2004-03-03
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , NISHIO TOMOYUKI , OSONO KAZUMASA
IPC分类号： G02B6/00 , G02B6/032 , G02B6/20
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive holey fiber having excellent PMD (polarization mode dispersion) characteristics. SOLUTION: In a plastic holey fiber 1 having a core 2, a clad 3 surrounding the periphery of the core 2, and a plurality of holes 4 penetrating the clad 3 near the core 2 in the axial direction of the core 2, the plurality of holes 4 are formed in a helical state around the axis of the core 2. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异的PMD（偏振模色散）特性的便宜的多孔光纤。解决方案：在具有芯2的塑料多孔纤维1，围绕芯2的周边的包层3以及在芯2的轴向方向上穿过芯2附近的包层3的多个孔4，多个孔4围绕芯2的轴线以螺旋状形成。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005247620A Method of manufacturing photonic crystal fiber 审中-公开
标题翻译：制造光子晶体纤维的方法
公开(公告)号：JP2005247620A
公开(公告)日：2005-09-15
申请号：JP2004059119
申请日：2004-03-03
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , YO HEI , OSONO KAZUMASA , KUROSAWA YOSHINORI
IPC分类号： G02B6/00 , C03B37/012 , C03B37/014 , C03B37/027
CPC分类号： C03B37/0122 , C03B37/02781 , C03B2203/14 , C03B2203/42 , C03B2205/10
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a photonic crystal fiber having small transmission loss by preventing the invasion of OH group to the inside wall of a fine diameter quartz tube. SOLUTION: In the method of manufacturing the photonic crystal fiber 10 by bundling a plurality of the fine diameter quartz tubes each having the same diameter and sealed at one side around a fine diameter quartz rod 12 as the center so that sealed ends 14 of the fine diameter quartz tubes and opened ends thereof exist respectively in the same side to form a preform for the photonic crystal fiber and drawing from the opened end 15 side, air in the fine diameter quartz tubes and a quartz jacket tube 16 is replaced by an inert gas such as Ar or N 2 before drawing. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决问题：提供通过防止OH基侵入细径石英管的内壁而制造具有小的透射损失的光子晶体光纤的方法。解决方案：在制造光子晶体光纤10的方法中，通过将具有相同直径的多个细小直径石英管捆扎在一侧，以细径石英棒12为中心密封，使得密封端14 的细直径石英管和开口端分别存在于同一侧以形成用于光子晶体纤维的预成型件并从开口端15侧拉出，细直径石英管中的空气和石英套管16被替换为惰性气体如Ar或N 2 。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2003342031A Preform for photonic crystal optical fiber and its manufacturing method 有权
标题翻译：光学晶体光纤的制造及其制造方法
公开(公告)号：JP2003342031A
公开(公告)日：2003-12-03
申请号：JP2002149373
申请日：2002-05-23
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , SHIROSAWA TATSUYA , YO HEI , OSONO KAZUMASA
IPC分类号： G02B6/00 , C03B37/012
CPC分类号： C03B37/01234 , C03B37/0122 , C03B2203/14 , C03B2203/42
摘要： PROBLEM TO BE SOLVED: To provide a preform for a new photonic crystal optical fiber with little limitation to its length, and its manufacturing method. SOLUTION: The preform for a photonic crystal optical fiber comprises: processing a plurality of grooves 5a and 5b along each longitudinal direction in the external surrounding of a crystal glass rod 3 provided with a core 2 at the shaft center and in the internal surrounding of a crystal glass tube joining together with it; combining the crystal glass rod 3 with the crystal glass tube 4 so that the grooves 5a and 5b agree to each other. Thereby, the preform 1 for the long photonic crystal optical fiber can be readily obtained making no limitation to the length of a void hole 5. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为对其长度几乎没有限制的新型光子晶体光纤提供预制件及其制造方法。解决方案：用于光子晶体光纤的预成型体包括：在轴心和内部设置有芯2的水晶玻璃棒3的外周围沿着每个纵向方向处理多个槽5a和5b 围绕与其结合在一起的水晶玻璃管; 将水晶玻璃棒3与水晶玻璃管4结合，使得槽5a和5b彼此一致。因此，可以容易地获得用于长光子晶体光纤的预制件1，而不限制空隙孔5的长度。版权所有（C）2004，JPO

8. 发明专利

JP2003313044A Method for manufacturing photonic crystal fiber 审中-公开
标题翻译：制造光子晶体光纤的方法
公开(公告)号：JP2003313044A
公开(公告)日：2003-11-06
申请号：JP2002114984
申请日：2002-04-17
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , YO HEI , OSONO KAZUMASA , OSUGA KAZUSHI
IPC分类号： G02B6/00 , C03B37/012 , C03B37/027
CPC分类号： C03B37/0122 , C03B2203/14 , C03B2203/42
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a high-quality photonic crystal fiber by surely avoiding collapse or expansion during fiber drawing. SOLUTION: A large number of small-diameter quartz tubes 3 are bundled around a small-diameter quartz rod 2, the bundle 4 is inserted into a quartz jacket tube 5, and both ends of the quartz jacket tube 5 are sealed to form a fiber preform 6. After the inside of the preform 6 is evacuated to specified pressure, the preform 6 is drawn into a specified diameter. Thereby, the high- quality photonic crystal fiber can be obtained because collapse of the small- diameter quartz tubes is prevented and a preferable PC (photonic crystal fiber) structure can be maintained and a change in the outer diameter due to expansion of pores can be prevented. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种制造高质量光子晶体光纤的方法，其可靠地避免在拉丝过程中的塌陷或膨胀。解决方案：将大量小直径石英管3捆扎在小直径石英棒2周围，将束4插入石英套管5中，将石英套管5的两端密封形成纤维预制件6.在将预成型体6的内部抽真空至规定的压力之后，预成型体6被拉伸到规定的直径。因此，可以获得高品质的光子晶体光纤，因为可以防止小直径石英管的塌陷，并且可以保持优选的PC（光子晶体光纤）结构，并且可以由于孔的膨胀而导致的外径变化防止了版权所有（C）2004，JPO

9. 发明专利

JP2003313041A Method for manufacturing photonic crystal optical fiber preform and photonic crystal optical fiber preform 有权
标题翻译：制造光子晶体光纤预制件和光子晶体光纤预制件的方法
公开(公告)号：JP2003313041A
公开(公告)日：2003-11-06
申请号：JP2002114988
申请日：2002-04-17
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , KOTANI KENGO , OSONO KAZUMASA , YO HEI
IPC分类号： G02B6/00 , C03B37/012
CPC分类号： C03B37/01205 , C03B2203/14 , C03B2203/42
摘要： PROBLEM TO BE SOLVED: To provide a photonic crystal optical fiber preform which is long and has high accuracy of the PBG (photonic bond gap) structure and to provide a method for manufacturing the preform. SOLUTION: The method for manufacturing the photonic crystal optical fiber preform comprises: forming at least one through hole 25 near the center of a disk member 21 composed of SiO 2 ; layering a plurality of disk members 21 to obtain a layered body 31 while connecting the through holes 25 of the disk members 21; and sintering the layered body 31 to integrate the disk members 21 into one body. Thus, the photonic crystal optical fiber preform 41 having a clad 44 around a core 43 composed of SiO 2 and having a photonic crystal structure in the clad 44 near the core 43 is manufactured. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种长且具有高精度的PBG（光子键间隙）结构的光子晶体光纤预制件，并提供一种制造预成型体的方法。解决方案：制造光子晶体光纤预制棒的方法包括：在由SiO 2组成的圆盘部件21的中心附近形成至少一个通孔25; 层叠多个盘构件21，以在连接盘构件21的通孔25的同时获得层叠体31; 并且对层叠体31进行烧结以将盘构件21整合为一体。因此，制造了具有包层44的光子晶体光纤预制件41，该包层44围绕由芯片43组成的包层44中的具有光子晶体结构的核心43构成。版权所有（C）2004，JPO

10. 发明专利

JP2003307632A Photonic crystal optical fiber 有权
标题翻译：光电晶体光纤
公开(公告)号：JP2003307632A
公开(公告)日：2003-10-31
申请号：JP2002114985
申请日：2002-04-17
申请人： Hitachi Cable Ltd , Masataka Nakazawa , 正隆中沢 , 日立電線株式会社
发明人： NAKAZAWA MASATAKA , MURAKAMI KAZUYA
IPC分类号： G02B6/00 , C03C25/24 , G02B6/02 , G02B6/036 , G02B6/44
CPC分类号： G02B6/02366 , G02B6/02395
摘要： PROBLEM TO BE SOLVED: To provide a photonic crystal optical fiber durable against bending from the viewpoint of transmission loss, strength and reliability and usable for connecting parts of conventional optical fibers. SOLUTION: Tensile strain due to bending can be decreased by using quartz for the core 3 and a clad 2 and by making the outer diameter of the clad 2 smaller than the outer diameter (125 μm) of a standard optical fiber. For example, by controlling the outer diameter of the clad 2 comprising quartz to 60 μm, the tensile strain is 0.002 even when the bending radius is decreased as small as 15 mm, which suppresses the strain to an almost equal level to that of conventional optical fibers. By forming resin coating layers 5 to 7 around the clad 2 to make the outer diameter of 125 μm, connecting parts such as connectors and mechanical splice for conventional optical fibers can be used. COPYRIGHT: (C)2004,JPO
摘要翻译：解决的问题：从传输损耗，强度和可靠性的观点出发，提供耐弯曲的光子晶体光纤，并且可用于连接常规光纤的部件。解决方案：通过使用石英作为芯3和包层2，并且通过使包层2的外径小于标准光纤的外径（125μm），可以减少由于弯曲引起的拉伸应变。例如，通过将包含石英的包层2的外径控制为60μm，即使当弯曲半径减小到15mm时，拉伸应变为0.002，从而将应变抑制到与常规光学器件几乎相等的应变纤维。通过在包层2的周围形成树脂被覆层5〜7使外径为125μm，可以使用连接部件，例如连接器和常规光纤的机械接合。版权所有（C）2004，JPO

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