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1. 发明授权

US4737179A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US4737179A
公开(公告)日：1988-04-12
申请号：US893084
申请日：1986-08-04
申请人： Gotaro Tanaka , Hiroshi Yokota , Shigeru Tanaka , Hiroo Kanamori , Hiroshi Suganuma
发明人： Gotaro Tanaka , Hiroshi Yokota , Shigeru Tanaka , Hiroo Kanamori , Hiroshi Suganuma
IPC分类号： G02B6/00 , C03B20/00 , C03B37/012 , C03B37/014 , C03B37/018
CPC分类号： G02B6/03644 , C03B37/01211 , C03B37/01228 , C03B37/01231 , C03B37/01248 , C03B37/014 , C03B37/01466 , G02B6/03666 , C03B2203/22 , C03B2203/36 , G02B6/02276
摘要： A method for producing a glass preform for use in fabrication of an optical fiber, which comprises steps of forming a cylindrical rod of glass having a refractive index distribution with axial symmetry around the rod axis by an VAD method, stretching the rod glass to decrease its diameter, inserting the stretched rod in a glass tube having a refractive index distribution with axial symmetry around the tube axis and heating and melting a complex of the stretched rod and the tube to integrate them from the glass preform produced by the method, an optical fiber having precisely controlled refractive index distribution can be fabricated.
摘要翻译：一种制造用于制造光纤的玻璃预制棒的方法，包括以下步骤：通过VAD法形成具有围绕杆轴的轴向对称折射率分布的圆柱形棒，拉伸棒玻璃以减少其将拉伸棒插入具有围绕管轴线的轴向对称折射率分布的玻璃管中，并加热并熔化拉伸棒和管的复合物，以将它们与由该方法制备的玻璃预制件相结合，将光纤可以制造精确控制的折射率分布。

2. 发明授权

US4793842A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US4793842A
公开(公告)日：1988-12-27
申请号：US139141
申请日：1987-12-21
申请人： Hiroshi Yokota , Hiroo Kanamori , Gotaro Tanaka , Hiroshi Suganuma , Toshio Danzuka
发明人： Hiroshi Yokota , Hiroo Kanamori , Gotaro Tanaka , Hiroshi Suganuma , Toshio Danzuka
IPC分类号： G02B6/00 , C03B20/00 , C03B37/012 , C03B37/025 , G02B6/02 , C03B37/014 , C03B37/027
CPC分类号： C03B37/01211 , Y02P40/57 , Y10S65/16 , Y10S65/90
摘要： A rod-in-tube method for producing a glass preform for use in the fabrication of an optical fiber, which comprises steps of inserting a glass rod constituting a core material in a glass tube constituting a cladding material, heating the rod-tube composite by an outer heating source with introducing, in the gap between the rod and the tube, a gaseous mixture containing a silicon halogenide, a fluorine-containing compound and oxygen gas in which a ratio of silicon and fluorine (Si/F) is larger than 1/300 and smaller than 1/5, and heating and fusing the composite at a temperature not lower than 1,900.degree. C. with filling the gap by a gaseous mixture comprising a halogen-containing compound and oxygen gas; from which glass preform, an optical fiber with low attenuation of light transmission, particularly in a long wavelength range, is fabricated.
摘要翻译：一种用于制造用于制造光纤的玻璃预制棒的棒管式方法，包括以下步骤：将构成芯材的玻璃棒插入构成包层材料的玻璃管中，通过以下步骤加热棒管复合物：外部加热源，其在棒和管之间的间隙中引入含有硅和氟（Si / F）比大于1的硅卤化物，含氟化合物和氧气的气体混合物 / 300且小于1/5，并且在不低于1900℃的温度下加热和熔合复合材料，通过包含含卤化合物和氧气的气体混合物填充间隙; 制造玻璃预制件，具有低透光衰减的光纤，特别是在长波长范围内。

3. 发明授权

US4822399A Glass preform for dispersion shifted single mode optical fiber and method for the production of the same 失效
标题翻译：用于色散偏移单模光纤的玻璃预制件及其制造方法
公开(公告)号：US4822399A
公开(公告)日：1989-04-18
申请号：US60176
申请日：1987-06-10
申请人： Hiroo Kanamori , Hiroshi Yokota , Gotaro Tanaka , Yoichi Ishiguro , Masahiro Takagi , Hiroshi Suganuma , Masayuki Shigematsu
发明人： Hiroo Kanamori , Hiroshi Yokota , Gotaro Tanaka , Yoichi Ishiguro , Masahiro Takagi , Hiroshi Suganuma , Masayuki Shigematsu
IPC分类号： G02B6/00 , C03B37/012 , C03B37/014 , C03B37/12 , C03C13/04 , C03B37/018
CPC分类号： G02B6/02276 , C03B37/01211 , C03B37/014 , C03B37/01446 , C03B37/01466 , C03C13/045 , G02B6/03633 , C03B2201/12 , C03B2203/22 , C03B2203/36 , Y10S65/16 , Y10S65/90
摘要： A glass preform for use in the fabrication of a dispersion shifted single mode optical fiber is produced by a method for comprising steps of inserting a core member consisting of an inner core part made of a germanium-added quartz glass which optionally contains fluorine and an outer core part made of a quartz glass having a refractive index smaller than that of the inner core part in a glass tube made of a fluorine-added quartz glass having a refractive index smaller than that of the outer core part, heating the core member and the glass tube to collapse the glass tube and fuse them together to produce a glass perform. The glass preform comprises a core member consisting of an inner core part made of GeO.sub.2 -SiO.sub.2 glass or GeO.sub.2 -F-SiO.sub.2 glass and an outer core part made of F-SiO.sub.2 glass and a cladding made of F-SiO.sub.2 glass and provides a dispersion shifted single mode optical fiber having reduced attenuation of light transmission in the 1.5 .mu.m wavelength band.

4. 发明授权

US5160522A Method for producing preform for polarization retaining optical fiber 失效
标题翻译：用于生产用于偏振保持光纤的预制件的方法
公开(公告)号：US5160522A
公开(公告)日：1992-11-03
申请号：US241043
申请日：1991-08-06
申请人： Masahiro Takagi , Hiroshi Suganuma , Hiroo Kanamori
发明人： Masahiro Takagi , Hiroshi Suganuma , Hiroo Kanamori
IPC分类号： C03B37/012
CPC分类号： C03B37/01217 , C03B2203/31
摘要： A preform for a polarization retaining optical fiber is produced by making at least two bores symmetrically around a center axis of a preform comprising a core part and a cladding part which surrounds the core part, decreasing a diameter of one end of each bore, or connecting a glass tube to one end of the preform, the glass tube having a part with a smaller inner diameter near its end which is connected to the preform, inserting a first glass rod, a stressing member and a second glass rod in this order from the other end of each bore or from an end of each bore which is remote from the connected glass tube, contacting the first glass rod to the diameter-decreased end of each bore or to the part with a smaller inner diameter of the glass tube, and heating and fusing the second glass rod to the preform.

5. 发明授权

US4900894A Method of heating a quartz glass tube 失效
标题翻译：石英玻璃管加热方法
公开(公告)号：US4900894A
公开(公告)日：1990-02-13
申请号：US296778
申请日：1989-01-13
申请人： Gotaro Tanaka , Hiroshi Suganuma , Akira Urano , Masahiro Takagi , Shunichi Mizuno
发明人： Gotaro Tanaka , Hiroshi Suganuma , Akira Urano , Masahiro Takagi , Shunichi Mizuno
IPC分类号： C03B20/00 , C03B23/043 , C03B37/018 , H05H1/46
CPC分类号： H01J37/32192 , C03B23/043 , C03B37/01876 , H05H1/46 , H01J2237/336
摘要： A method of heating a quartz glass tube with microwaves, which method comprises supplying a gas for plasma generation in the quartz glass tube, applying microwaves to the quartz glass tube so as to generate a hot plasma in the quartz glass tube and to preheat the quartz glass tube, and then discontinuing the supply of the gas for plasma generation while applying the microwaves, whereby the quartz glass tube absorbs the microwaves to heat the quartz glass tube to a sufficient temperature in a very quick and clear manner.

6. 发明授权

US5438640A Optical waveguide device for receiving functional component 失效
标题翻译：用于接收功能元件的光波导器件
公开(公告)号：US5438640A
公开(公告)日：1995-08-01
申请号：US225716
申请日：1994-04-08
申请人： Eisuke Sasaoka , Hiroo Kanamori , Hiroshi Suganuma , Shinji Ishikawa , Tatsuhiko Saito
发明人： Eisuke Sasaoka , Hiroo Kanamori , Hiroshi Suganuma , Shinji Ishikawa , Tatsuhiko Saito
IPC分类号： G02B6/125 , G02B6/26 , G02B6/28
CPC分类号： G02B6/264 , G02B6/125 , G02B6/262 , G02B6/2817
摘要： The present invention comprises a waveguide substrate and an optical waveguide disposed on the substrate, the optical waveguide having an optical waveguide region as a light transmission path, an insertion region for inserting an optical functional component having a mode field width of light propagating therein larger than that of light propagating in the optical waveguide region, and an optical connection region provided between the optical waveguide region and the insertion region to change a mode field width of light propagating therein.
摘要翻译：本发明包括设置在基板上的波导基板和光波导，光波导具有光波导区域作为光传输路径，插入区域用于插入具有在其中传播的光的模场宽度的光功能元件，在光波导区域中传播的光和在光波导区域和插入区域之间设置的光连接区域，以改变在其中传播的光的模场宽度。

7. 发明授权

US5221307A Method for producing preform for polarization retaining optical fiber 失效
标题翻译：用于生产用于偏振保持光纤的预制件的方法
公开(公告)号：US5221307A
公开(公告)日：1993-06-22
申请号：US892783
申请日：1992-06-03
申请人： Masahiro Takagi , Hiroshi Suganuma , Hiroo Kanamori
发明人： Masahiro Takagi , Hiroshi Suganuma , Hiroo Kanamori
IPC分类号： C03B37/012
CPC分类号： C03B37/01217 , C03B2203/31
摘要： A preform for a polarization retaining optical fiber is produced by making at least two bores symmetrically around a center axis of a preform comprising a core part and a cladding part which surrounds the core part, decreasing a diameter of one end of each bore, or connecting a glass tube to one end of the preform, the glass tube having a part with a smaller inner diameter near its end which is connected to the preform, inserting a first glass rod, a stressing member and a second glass rod in this order from the other end of each bore or from an end of each bore which is remote from the connected glass tube, contacting the first glass rod to the diameter-decreased end of each bore or to the part with a smaller inner diameter of the glass tube, and heating and fusing the second glass rod to the preform.
摘要翻译：用于偏振保持光纤的预成型体通过使包括芯部的芯部和包层部的包围芯部的预成型件的中心轴对称地形成至少两个孔而制造，减少每个孔的一端的直径或连接玻璃管到预成型件的一端，玻璃管具有靠近其端部具有较小内径的部分，其连接到预成型件，从第一玻璃棒，第二玻璃棒按顺序插入第一玻璃棒，应力构件和第二玻璃棒每个孔的另一端或远离连接的玻璃管的每个孔的端部，将第一玻璃棒接触每个孔的直径减小的端部或具有较小的玻璃管的内径的部分，以及将第二玻璃棒加热并熔合到预制件上。

8. 发明授权

US5205851A Method and apparatus for producing optical fiber coupler 失效
标题翻译：用于生产光纤耦合器的方法和装置
公开(公告)号：US5205851A
公开(公告)日：1993-04-27
申请号：US766202
申请日：1991-09-27
申请人： Hiroshi Suganuma , Hiroaki Takimoto , Hiroshi Yokota , Masumi Fukuma , Kazuhiko Arimoto
发明人： Hiroshi Suganuma , Hiroaki Takimoto , Hiroshi Yokota , Masumi Fukuma , Kazuhiko Arimoto
IPC分类号： G02B6/28
CPC分类号： G02B6/2856 , G02B6/2835
摘要： In a method of producing an optical fiber coupler, in which glass portions of a plurality of optical fibers are heated so as to be fusion bonded to each other and then, are heated so as to be stretched, the improvement comprising: a gas burner which acts as a heat source and has a plurality of gas nozzles arranged in an axial direction of the optical fibers so as to be fixed in position during heating of the glass portions.

9. 发明授权

US5176730A Method of producing optical-fiber coupler 失效
标题翻译：生产光纤耦合器的方法
公开(公告)号：US5176730A
公开(公告)日：1993-01-05
申请号：US843941
申请日：1992-02-18
申请人： Hiroshi Suganuma , Hiroaki Takimoto , Hiroshi Yokota , Kazuhiko Arimoto
发明人： Hiroshi Suganuma , Hiroaki Takimoto , Hiroshi Yokota , Kazuhiko Arimoto
IPC分类号： G02B6/28
CPC分类号： G02B6/2835
摘要： The invention provides a method for producing an optical-fiber coupler with a preset branching ratio. The present invention relates to a method in which part of a plurality of optical fibers are made to closely contact with each other so as to form a coupler. The coupler is heated to thereby obtain a predetermined branching ratio; the flow rate of a gas to be supplied to a heat source is increased/decreased by a quantity proportional to a difference between the drawing speed and a preset drawing speed while predetermined tension is applied to the optical fibers.

10. 发明授权

US5329600A Reflection monitor optical fiber coupler manufacturing system and method 失效
标题翻译：反射监测光纤耦合器制造系统及方法
公开(公告)号：US5329600A
公开(公告)日：1994-07-12
申请号：US892208
申请日：1992-06-02
申请人： Eisuke Sasaoka , Masumi Fukuma , Hiroaki Takimoto , Hiroshi Suganuma , Hiroshi Yokota , Junichi Yoshikawa , Kazuhiko Arimoto
发明人： Eisuke Sasaoka , Masumi Fukuma , Hiroaki Takimoto , Hiroshi Suganuma , Hiroshi Yokota , Junichi Yoshikawa , Kazuhiko Arimoto
IPC分类号： G02B6/28 , G02B6/26
CPC分类号： G02B6/2835
摘要： In an optical fiber coupler fabricating process where couplers are successively formed by heating, elongating and cutting a plurality of long optical fibers, light is led into the first end of the fiber, reflected at the second end of the coupler, and the reflected light is monitored by photodetectors. In this manner, an exact splitting ratio can be obtained. Techniques for minimizing measuring errors caused by the inter-reflected-light interference, the inter-Rayleigh-scattering-light interference, and the interference between the reflected light and the Rayleigh scattering light, while exploiting the advantageous feature of the reflection monitor method that the fiber connection work for each fiber coupler fabrication is not required are disclosed.
摘要翻译：在通过加热，拉长和切割多根长的光纤连续地形成耦合器的光纤耦合器制造过程中，光被引入光纤的第一端，在耦合器的第二端被反射，并且反射的光是由光电检测器监测。以这种方式，可以获得精确的分离比。用于最小化由反射光干涉引起的测量误差，瑞利散射光干涉以及反射光和瑞利散射光之间的干扰的技术，同时利用反射监测方法的有利特征，公开了不需要每个光纤耦合器制造的光纤连接工作。

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