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21. 发明授权

US5106401A Process for thermal treatment of glass fiber preform 失效
标题翻译：玻璃纤维预热器的热处理工艺
公开(公告)号：US5106401A
公开(公告)日：1992-04-21
申请号：US544942
申请日：1990-06-28
申请人： Shinji Ishikawa , Yuichi Ohga , Ichiro Tsuchiya , Hiroo Kanamori , Hiroshi Yokota , Michihisa Kyoto
发明人： Shinji Ishikawa , Yuichi Ohga , Ichiro Tsuchiya , Hiroo Kanamori , Hiroshi Yokota , Michihisa Kyoto
IPC分类号： G02B6/00 , C03B37/014
CPC分类号： C03B37/01446 , C03B37/0146 , C03B2201/07 , C03B2201/075 , C03B2201/12 , Y10S65/16 , Y10S65/90
摘要： The present invention providesa process for the dehydrating and purifying treatment by heating a porous glass preform for an optical fiber by passing the porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere containing an inert gas and a silicon halogenide gas;a process for the fluorine-doping treatment by heating a porous glass preform for an optical fiber by passing a porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere containing a fluorine compound gas and an inert gas; anda process for the vitrifying treatment by heating a porous glass preform for an opticla fiber by passing the preform, which has been previously dehydrated and purified, through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere gas.

22. 发明授权

US5838867A Dispersion compensating fiber and optical transmission system including the same 失效
标题翻译：色散补偿光纤和光传输系统包括它们
公开(公告)号：US5838867A
公开(公告)日：1998-11-17
申请号：US834305
申请日：1997-04-15
申请人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
发明人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
IPC分类号： C03B37/014 , G02B6/34 , H01S3/067 , H01S3/30 , G02B6/16
CPC分类号： G02B6/02261 , C03B37/014 , G02B6/02004 , G02B6/0228 , G02B6/02285 , G02B6/03611 , G02B6/03627 , G02B6/03644 , G02B6/29377 , C03B2203/22 , C03B2203/36 , G02B6/0281 , G02B6/0283 , G02B6/0286 , H01S3/06729 , H01S3/302
摘要： The present invention relates to a dispersion compensating fiber for improving a transmission system with it in total chromatic dispersion and dispersion slope in the 1.55 .mu.m wavelength band. The dispersion compensating fiber according to the present invention is characterized by having the following characteristics for light in the 1.55 .mu.m wavelength band: chromatic dispersion not less than -40 ps/km/nm and not more than 0 ps/km/nm; dispersion slope not less than -0.5 ps/km/nm.sup.2 and not more than -0.1 ps/km/nm.sup.2 ; transmission loss not more than 0.5 dB/km; polarization mode dispersion not more than 0.7 ps.multidot.km.sup.-1/2 ; mode field diameter not less than 4.5 .mu.m and not more than 6.5 .mu.m; cut-off wavelength not less than 0.7 .mu.m and not more than 1.7 .mu.m in the length of 2 m; and bending loss at the diameter of 20 mm, not more than 100 dB/m. The dispersion compensating fiber is optically connected with a dispersion shifted fiber as a compensated object at a ratio of appropriate lengths, which can improve the system including the dispersion compensating fiber in the total chromatic dispersion and dispersion slope of the system in the 1.55 .mu.m band.
摘要翻译：本发明涉及一种用于改善传输系统的色散补偿光纤，其在1.55μm波长带中的总色散和色散斜率。根据本发明的色散补偿光纤的特征在于对于1.55μm波长带中的光具有以下特性：色散不低于-40ps / km / nm且不大于0ps / km / nm; 色散斜率不小于-0.5 ps / km / nm2，不大于-0.1 ps / km / nm2; 传输损耗不超过0.5 dB / km; 偏振模色散不大于0.7 psxkm- + E，fra 1/2 + EE; 模场直径不小于4.5亩，不超过6.5亩; 截止波长不小于0.7μm，长度不超过1.7μm; 弯曲损耗为20mm，不大于100dB / m。色散补偿光纤以适当长度的比例与作为补偿对象的色散位移光纤光学连接，这可以改善包括色散补偿光纤在1.55μm带中的系统的总色散和色散斜率的系统。

23. 发明授权

US5764826A PD/LD module and PD module 失效
标题翻译： PD / LD模块和PD模块
公开(公告)号：US5764826A
公开(公告)日：1998-06-09
申请号：US687924
申请日：1996-07-29
申请人： Yoshiki Kuhara , Naoyuki Yamabayashi , Yasuhiro Iguchi , Yasushi Fujimura , Hiroo Kanamori
发明人： Yoshiki Kuhara , Naoyuki Yamabayashi , Yasuhiro Iguchi , Yasushi Fujimura , Hiroo Kanamori
IPC分类号： G02B6/42 , H01S5/026 , H04B10/40 , G02B6/28
CPC分类号： H04B10/40 , G02B6/421 , G02B6/4246 , H01S5/0262 , G02B6/4207
摘要： Bidirectional optical communication system transmits optical signals with two different wavelengths .lambda..sub.1 and .lambda..sub.2 (.lambda..sub.1
摘要翻译：双向光通信系统在广播台和多个ONU终端之间传输具有两个不同波长λ1和λ2（λ1 <λ2）的光信号。 λ1和λ2的分离分离需要昂贵的WDM。提出了吸收所有λ1光并允许所有λ2通过的λ1选择性光电二极管。光接收层的能隙Eg1被确定为小于hc /λ2并且大于hc /λ1.λ1选择性光电二极管和另一光电二极管被串联放置在束线上，其被分配WDM 。

24. 发明授权

US5660611A Method for producing glass thin film 失效
标题翻译：制造玻璃薄膜的方法
公开(公告)号：US5660611A
公开(公告)日：1997-08-26
申请号：US463866
申请日：1995-06-05
申请人： Shinji Ishikawa , Akira Urano , Haruhiko Aikawa , Chizai Hirose , Hiroo Kanamori , Masahide Saitoh
发明人： Shinji Ishikawa , Akira Urano , Haruhiko Aikawa , Chizai Hirose , Hiroo Kanamori , Masahide Saitoh
IPC分类号： C03B19/14 , C03C17/00 , C03C17/02 , C23C14/10 , C23C16/44 , C23C16/453 , C03B37/07 , C03C25/02
CPC分类号： C03B19/1453 , C03B19/14 , C03B19/1415 , C03C17/001 , C03C17/02 , C23C14/10 , C23C16/44 , C23C16/453 , C03B2207/90
摘要： A method for producing an oxide glass thin film is provided, in which volatilization of additives in a porous film from which the thin film is formed is effectively suppressed, and which the oxide glass film has a desired arrangement of refractive index with a low optical loss. According to this method, glass fine particles mainly containing SiO.sub.2 with a first additive are deposited on a substrate to form a porous thin film. A gas containing a second additive is supplied to a first chamber and heated to a first predetermined temperature profile to provide a heated gas containing an oxide. After disposing the substrate in a second chamber communicated with the first chamber, the substrate is heated to make the deposited porous glass into transparent glass while controlling a temperature in the second chamber according to a second temperature profile. A carrier gas is flowed from the first chamber to the second chamber to transfer the heated gas and oxide from the first chamber to the second chamber during heating. The temperature of the first predetermined temperature profile is maintained higher than the temperature of the second predetermined temperature profile at the same time. In addition, the heated gas contains a component that is also present in the first additive.
摘要翻译：提供了一种制造氧化物玻璃薄膜的方法，其中有效地抑制了形成薄膜的多孔膜中的添加剂的挥发，并且氧化物玻璃薄膜具有期望的折射率排列，光损耗低。根据该方法，将主要含有SiO 2的第一添加剂的玻璃微粒子沉积在基板上，形成多孔薄膜。将含有第二添加剂的气体供应到第一室并加热至第一预定温度分布，以提供含有氧化物的加热气体。在将基板设置在与第一室连通的第二室中之后，基板被加热以使沉积的多孔玻璃成为透明玻璃，同时根据第二温度曲线控制第二室中的温度。载气从第一室流到第二室，以在加热期间将加热的气体和氧化物从第一室转移到第二室。第一预定温度曲线的温度同时保持高于第二预定温度曲线的温度。此外，加热气体含有也存在于第一添加剂中的成分。

25. 发明授权

US5586209A Optical branching device 失效
标题翻译：光分路器
公开(公告)号：US5586209A
公开(公告)日：1996-12-17
申请号：US333318
申请日：1994-11-01
申请人： Yuji Matsuura , Eisuke Sasaoka , Hiroo Kanamori
发明人： Yuji Matsuura , Eisuke Sasaoka , Hiroo Kanamori
IPC分类号： G02B6/12 , G02B6/125 , G02B6/28 , G02B6/26
CPC分类号： G02B6/2808 , G02B6/12007 , G02B6/125 , G02B6/2804
摘要： An optical branching device comprising: a substrate; a first core member formed on the substrate, having a first edge face; a second core member formed on the substrate, tapering toward the first edge face of the first core member, having a second edge face facing the first edge face at a given space; and a third core member formed on the substrate, tapering toward the first edge face of the first core member, having a third edge face facing the first edge face at a given space.
摘要翻译：一种光分支装置，包括：基板; 形成在所述基板上的第一芯体，具有第一边缘面; 形成在所述基板上的第二芯构件，朝向所述第一芯构件的第一边缘面逐渐变细，在给定空间处具有面向所述第一边缘面的第二边缘面; 以及形成在所述基板上的第三芯体，朝向所述第一芯体的第一边缘面逐渐变细，在给定空间具有面向所述第一边缘面的第三边缘面。

26. 发明授权

US5381503A Mode field diameter conversion fiber 失效
标题翻译：模场直径转换光纤
公开(公告)号：US5381503A
公开(公告)日：1995-01-10
申请号：US61385
申请日：1993-05-14
申请人： Hiroo Kanamori , Koji Nakazato , Masayuki Nishimura , Shigeru Tomita
发明人： Hiroo Kanamori , Koji Nakazato , Masayuki Nishimura , Shigeru Tomita
IPC分类号： G02B6/255 , G02B6/26 , G02B6/10
CPC分类号： G02B6/262 , G02B6/2552
摘要： There is disclosed an optical waveguide comprising a core portion made of a light propagating material and a cladding portion, a first dopant and a second dopant being induced into said core portion, the first dopant having a function of increasing a refractive index of the light propagating material and having a first thermal diffusion coefficient to said light propagating material, the second dopant having a function of decreasing the refractive index of said light propagating material and having a second thermal diffusion coefficient to the light propagating material larger than the first thermal diffusion coefficient under a predetermined temperature.
摘要翻译：公开了一种光波导，包括由光传播材料和包层部分构成的芯部分，第一掺杂剂和第二掺杂剂被诱导到所述芯部分中，第一掺杂剂具有增加传播光的折射率的功能材料，并且对所述光传播材料具有第一热扩散系数，第二掺杂剂具有降低所述光传播材料的折射率并且具有比第一热扩散系数大的第二热扩散系数的第二热扩散系数的函数，预定温度。

27. 发明授权

US5306322A Process for thermal treatment of glass fiber preform 失效
标题翻译：玻璃纤维预制件热处理工艺
公开(公告)号：US5306322A
公开(公告)日：1994-04-26
申请号：US924767
申请日：1992-07-24
申请人： Shinji Ishikawa , Yuichi Ohga , Ichiro Tsuchiya , Hiroo Kanamori , Hiroshi Yokota , Michihisa Kyoto
发明人： Shinji Ishikawa , Yuichi Ohga , Ichiro Tsuchiya , Hiroo Kanamori , Hiroshi Yokota , Michihisa Kyoto
IPC分类号： G02B6/00 , C03B37/014 , C03B37/023
CPC分类号： C03B37/01446 , C03B37/0146 , C03B2201/07 , C03B2201/075 , C03B2201/12 , Y10S65/16 , Y10S65/90
摘要： The present invention providesa process for the dehydrating and purifying treatment by heating a porous glass preform for an optical fiber comprising passing the porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere comprising an inert gas and a silicon halogenide gas;a process for the fluorine-doping treatment by heating a porous glass preform for an optical fiber comprising passing a porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere comprising a fluorine compound gas and an inert gas; anda process for the vitrifying treatment by heating a porous glass preform for an optical fiber comprising passing the preform, which has been previously dehydrated and purified, through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere gas.
摘要翻译：本发明提供了一种通过加热用于光纤的多孔玻璃预制件进行脱水和净化处理的方法，包括使多孔玻璃预制件通过具有SiC层的马弗管至少在其内表面上在高温下在包括惰性气体和卤化硅气体; 通过加热用于光纤的多孔玻璃预制件进行氟掺杂处理的方法，包括使多孔玻璃预制件通过具有SiC层的马弗管至少在其内表面上在高温下在包含氟化合物气体和惰性气体; 以及通过加热用于光纤的多孔玻璃预制件进行玻璃化处理的方法，包括使预先脱水和净化的预成型体至少在其内表面上通过具有SiC层的马弗管在高温下气氛气体。

28. 发明授权

US5259856A Method of producing glass preform in furnace for heating glass 失效
标题翻译：在玻璃加热炉中生产玻璃预制件的方法
公开(公告)号：US5259856A
公开(公告)日：1993-11-09
申请号：US891913
申请日：1992-06-01
申请人： Yuichi Ohga , Shinji Ishikawa , Hiroo Kanamori , Ichiro Tsuchiya , Hiroshi Yokota
发明人： Yuichi Ohga , Shinji Ishikawa , Hiroo Kanamori , Ichiro Tsuchiya , Hiroshi Yokota
IPC分类号： C03B37/014
CPC分类号： C03B37/01446 , C03B37/0146 , C03B2201/12 , C03B2203/22 , Y10S65/16 , Y10S65/90
摘要： A heating furnace for heating a porous preform made of fine particles of quartz base glass for an optical fiber which comprises a heater and a muffle tube positioned inside the heater to separate a heating atmosphere from the heater, wherein the muffle tube body consists of highly pure carbon and an inner wall and an outer wall of the body is coated with a carbon material selected from the group consisting of pyrolytic graphite and solid-phase carbonized glassy carbon.
摘要翻译：一种加热炉，用于加热由用于光纤的石英基底玻璃的微细颗粒制成的多孔预成型件，该多孔预制件包括位于加热器内部的加热器和马弗管，以将加热气体与加热器分离，其中马弗管体由高纯度碳和主体的内壁和外壁涂覆有选自热解石墨和固相碳化玻璃碳的碳材料。

29. 发明授权

US5238479A Method for producing porous glass preform for optical fiber 失效
标题翻译：光纤多孔玻璃预制棒的制造方法
公开(公告)号：US5238479A
公开(公告)日：1993-08-24
申请号：US984734
申请日：1992-12-04
申请人： Yuichi Ohga , Toshio Danzuka , Hiroo Kanamori , Hiroshi Yokota
发明人： Yuichi Ohga , Toshio Danzuka , Hiroo Kanamori , Hiroshi Yokota
IPC分类号： C03B37/014
CPC分类号： C03B37/0142 , C03B2201/31 , C03B2203/22 , C03B2203/26 , C03B2207/06 , C03B2207/20 , C03B2207/24 , C03B2207/26 , C03B2207/28 , C03B2207/50
摘要： The invention is a method for producing a porous preform for use in the fabrication of an optical fiber at least two burners synthesize glass soot particles, one of which generates a double-layer flame and one of which is used for forming a core part of the preform. The method comprises the steps of supplying SiCl.sub.4 and optionally GeCl.sub.4 to the inner flame of the double-layer flame, and only SiCl.sub.4 to an outer flame of the double-layer flame to flame hydrolyze the supplied compounds and synthesize glass soot particles. Compounds SiCl.sub.4 and GeCl.sub.4 as glass-forming raw materials are supplied to the burner for forming the core part of the preform by depositing the generated glass soot particles on the lower end of a rotating starting member. The generated porous preform comprises a core part containing at least partly GeO.sub.2, and a surface having a low concentration of GeO.sub.2 which reduces cracking or peeling.
摘要翻译：本发明是用于制造用于制造光纤的多孔预制棒的方法，至少两个燃烧器合成玻璃烟灰颗粒，其中一个产生双层火焰，其中一个用于形成预制件。该方法包括以下步骤：向双层火焰的内部火焰提供SiCl 4和任选的GeCl 4，并且仅将SiCl 4与双层火焰的外部火焰直接火焰水解所提供的化合物并合成玻璃烟灰颗粒。作为玻璃形成原料的化合物SiCl4和GeCl4通过将生成的玻璃烟灰颗粒沉积在旋转起始构件的下端而供给到用于形成预成型体的芯部的燃烧器。生成的多孔预制件包括至少部分含有GeO 2的核心部分和具有低浓度GeO 2的表面，其减少开裂或剥离。

30. 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.

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