-
公开(公告)号：US20060110112A1
公开(公告)日：2006-05-25
申请号：US11330091
申请日：2006-01-12
IPC分类号： G02B6/02
CPC分类号： G02B6/02009 , C03B37/12 , C03C25/607 , G02B6/02214 , G02B6/03644 , G02B6/03694 , Y02P40/57
摘要： An optical fiber having a length of 1 km or more with average transmission loss in a wavelength band of 1383 nm being less than average transmission loss in a wavelength band of 1310 nm, wherein a maximum value of any 1 km section loss in the wavelength band of 1383 nm does not exceed the average transmission loss by 0.03 dB/km or more.
摘要翻译： 在1383nm的波长带中具有1km以上的平均传输损耗的长度的光纤比1310nm的波长带的平均传输损耗小，其中波长带中的任何1km的断面损耗的最大值 1383nm的平均传输损耗不超过0.03dB / km以上。
-
公开(公告)号：US5711903A
公开(公告)日：1998-01-27
申请号：US698287
申请日：1996-08-14
申请人： Takeshi Yagi , Masato Oku , Takayuki Morikawa , Tsuguo Sato , Kazuaki Yoshida
发明人： Takeshi Yagi , Masato Oku , Takayuki Morikawa , Tsuguo Sato , Kazuaki Yoshida
IPC分类号： C01B33/12 , C03B37/012 , B29D11/00 , B27N3/00 , B29C59/00
CPC分类号： C01B33/126 , C01B33/12 , C03B37/0128 , C03B2201/02 , C03B2201/10 , C03B2201/31 , C03B2201/34 , C03B2201/42
摘要： The present invention provides a method of manufacturing a porous preform for an optical fiber, including the steps of removing impure particles from silica powder while being stirred in an alkaline liquid phase, and obtaining the porous preform for an optical fiber by applying the powder forming method to the silica powder used as a main raw material. The present invention further has a method of manufacturing a porous preform for an optical fiber, including the step of preparing a forming material by adding fine particles having a particle diameter satisfying the following formula (I) to the silica powder, and obtaining the porous preform by applying the powder forming method to the forming material: ##EQU1## wherein d: diameter of fine particles, and D: diameter of silica powder.
摘要翻译： 本发明提供一种制造光纤用多孔预成型体的方法，包括以下步骤：在碱性液相中搅拌的同时从二氧化硅粉末中除去不纯的颗粒，并通过施加粉末形成方法获得光纤用多孔预成型体 以二氧化硅粉末为主要原料。 本发明还涉及一种制造光纤用多孔预成型体的方法，包括通过将具有下述通式（I）的粒径的微粒添加到二氧化硅粉末中而制备成形材料的步骤，得到多孔预成型体 通过对成形材料施加粉末形成方法：其中d：细颗粒直径，D：二氧化硅粉末的直径。
-
3.发明授权公开(公告)号：US07677060B2
公开(公告)日：2010-03-16
申请号：US11155475
申请日：2005-06-20
申请人： Masato Oku , Takashi Suzuki
发明人： Masato Oku , Takashi Suzuki
IPC分类号： C03B25/04
CPC分类号： C03B37/02727 , C03B2205/42 , C03B2205/55 , C03B2205/56
摘要： A method for manufacturing an optical fiber by drawing an optical fiber preform softened by heating, includes cooling the optical fiber at a cooling rate of not more than 4000° C. per second at a temperature of 1200 to 1400° C. of the optical fiber; and cooling the optical fiber at a cooling rate of not more than 8000° C. per second at a temperature of 850 to 1200° C. of the optical fiber. A drawing rate of the optical fiber is not less than 1000 meters per minute.
摘要翻译： 通过拉伸通过加热软化的光纤预制件来制造光纤的方法包括：在光纤的1200〜1400℃的温度下以不超过4000℃的速度冷却光纤 ; 并在光纤的850〜1200℃的温度下以不超过8000℃/秒的冷却速度冷却光纤。 光纤的拉伸速度不小于1000米/分钟。
-
公开(公告)号：US20100043497A1
公开(公告)日：2010-02-25
申请号：US12578260
申请日：2009-10-13
CPC分类号： G02B6/02009 , C03B37/12 , C03C25/607 , G02B6/02214 , G02B6/03644 , G02B6/03694 , Y02P40/57
摘要： An optical fiber having a length of 1 km or more with average transmission loss in a wavelength band of 1383 nm being less than average transmission loss in a wavelength band of 1310 nm, wherein a maximum value of any 1 km section loss in the wavelength band of 1383 nm does not exceed the average transmission loss by 0.03 dB/km or more.
摘要翻译： 在1383nm的波长带中具有1km以上的平均传输损耗的长度的光纤比1310nm的波长带的平均传输损耗小，其中波长带中的任何1km的断面损耗的最大值 1383nm的平均传输损耗不超过0.03dB / km以上。
-
公开(公告)号：US20060273218A1
公开(公告)日：2006-12-07
申请号：US11443120
申请日：2006-05-31
IPC分类号： B65H75/00
CPC分类号： B65H75/141 , B65H2701/32 , G02B6/4457
摘要： A protective cover is detachably fixed onto a spool to protect an optical fiber wound on the spool. The protective cover includes a pair of half-cylindrical cover members coupled together by a hinge and locked together by a locking mechanism. When an external force allows a pair of hinge members of the hinge to abut together, edges of the cover members are apart from each other at an angle of 2 to 7 degrees as viewed with respect to the center of the hinge. The edges of the cover members are then abut together by an additional external force to lock the locking mechanism.
摘要翻译： 保护盖可拆卸地固定在卷轴上，以保护缠绕在卷轴上的光纤。 保护盖包括一对由铰链联接在一起并通过锁定机构锁定在一起的半圆柱形盖构件。 当外力允许铰链的一对铰链构件邻接在一起时，盖构件的边缘相对于铰链的中心观察为2至7度的角度彼此分开。 然后，盖构件的边缘通过附加的外力抵靠在一起以锁定锁定机构。
-
公开(公告)号：US20050123255A1
公开(公告)日：2005-06-09
申请号：US10960013
申请日：2004-10-08
申请人： Kazuhisa Kashihara , Masato Oku , Akira Iino
发明人： Kazuhisa Kashihara , Masato Oku , Akira Iino
CPC分类号： C03C3/097 , C03B2201/21 , C03B2201/22 , G02B6/02 , Y02P40/57
摘要： Two or more optical waveguides are placed in a treatment vessel. The optical waveguides in the treatment vessel are treated with a chemical substance containing at least one of deuterium, hydrogen, and a compound thereof. The treating includes causing molecules of the chemical substance to diffuse into the optical waveguides, causing the molecules of the chemical substance that have diffused into the optical waveguides to react with structural defects that exist in a portion, through which light propagates, of the optical waveguides, and removing from the optical waveguides molecules of the chemical substance that do not react with the structural defect.
摘要翻译： 将两个或更多个光波导放置在处理容器中。 处理容器中的光波导用包含氘，氢及其化合物中的至少一种的化学物质进行处理。 处理包括使化学物质的分子扩散到光波导中，导致扩散到光波导中的化学物质的分子与存在于光传播的部分的结构缺陷发生反应 并且从光波导去除不与结构缺陷反应的化学物质的分子。
-
公开(公告)号：US5244485A
公开(公告)日：1993-09-14
申请号：US874179
申请日：1992-04-24
申请人： Hiroshi Hihara , Masato Oku , Takeshi Yagi , Noritsugu Enomoto , Tsuguo Sato , Kazuaki Yoshida , Takayuki Morikawa
发明人： Hiroshi Hihara , Masato Oku , Takeshi Yagi , Noritsugu Enomoto , Tsuguo Sato , Kazuaki Yoshida , Takayuki Morikawa
IPC分类号： C03B37/012
CPC分类号： C03B37/01282 , Y02P40/57
摘要： The method of manufacturing a silica glass preform comprises the steps of inserting a rod-like member mainly containing a ductile material, into a forming space of a mold, charging the remaining space of the forming space with a forming material containing silica glass powder or doped silica glass powder, compressing the mold charged with the forming material from outside such as to form a porous glass body of the forming material around the rod-like member, removing the rod-like member from the porous glass body, inserting a glass rod into the hole formed after removal of the rod-like member, purifying said porous glass body in which the glass rod is inserted, and consolidating said porous glass body purified in the above purifying step.
-
公开(公告)号：US07252262B2
公开(公告)日：2007-08-07
申请号：US11443120
申请日：2006-05-31
IPC分类号： B65H75/18
CPC分类号： B65H75/141 , B65H2701/32 , G02B6/4457
摘要： A protective cover is detachably fixed onto a spool to protect an optical fiber wound on the spool. The protective cover includes a pair of half-cylindrical cover members coupled together by a hinge and locked together by a locking mechanism. When an external force allows a pair of hinge members of the hinge to abut together, edges of the cover members are apart from each other at an angle of 2 to 7 degrees as viewed with respect to the center of the hinge. The edges of the cover members are then abut together by an additional external force to lock the locking mechanism.
摘要翻译： 保护盖可拆卸地固定在卷轴上，以保护缠绕在卷轴上的光纤。 保护盖包括一对由铰链联接在一起并通过锁定机构锁定在一起的半圆柱形盖构件。 当外力允许铰链的一对铰链构件邻接在一起时，盖构件的边缘相对于铰链的中心观察为2至7度的角度彼此分开。 然后，盖构件的边缘通过附加的外力抵靠在一起以锁定锁定机构。
-
公开(公告)号：US20050281521A1
公开(公告)日：2005-12-22
申请号：US11084144
申请日：2005-03-21
申请人： Masato Oku , Takashi Suzuki
发明人： Masato Oku , Takashi Suzuki
IPC分类号： G02B6/00 , C03B37/012 , C03B37/027 , G02B6/02
CPC分类号： C03B37/02727 , C03B2205/42 , C03B2205/55 , C03B2205/56
摘要： A method for manufacturing an optical fiber by drawing an optical fiber preform softened by heating, includes cooling the optical fiber at a cooling rate of not more than 4000° C. per second at a temperature of 1200 to 1400° C. of the optical fiber; and cooling the optical fiber at a cooling rate of not more than 8000° C. per second at a temperature of 850 to 1200° C. of the optical fiber. A drawing rate of the optical fiber is not less than 1000 meters per minute.
摘要翻译： 通过拉伸通过加热软化的光纤预制件来制造光纤的方法包括：在光纤的1200〜1400℃的温度下以不超过4000℃的速度冷却光纤 ; 并在光纤的850〜1200℃的温度下以不超过8000℃/秒的冷却速度冷却光纤。 光纤的拉伸速度不小于1000米/分钟。
-
公开(公告)号：US5352259A
公开(公告)日：1994-10-04
申请号：US10670
申请日：1993-01-28
申请人： Masato Oku , Noritsugu Enomoto , Hiroshi Hihara , Tsuguo Sato , Kazuaki Yoshida , Takayuki Morikawa , Takeshi Yagi
发明人： Masato Oku , Noritsugu Enomoto , Hiroshi Hihara , Tsuguo Sato , Kazuaki Yoshida , Takayuki Morikawa , Takeshi Yagi
IPC分类号： C03B37/012 , C03B19/09
CPC分类号： C03B37/01282
摘要： The present invention provides a method of manufacturing an optical fiber preform having the steps of disposing a rod member made of a silica-based material within a cavity of a mold, followed by loading a molding material within the mold cavity, and applying pressure to the mold from the outside to form a porous layer on the surface of the rod member and, thus, to obtain a porous preform, wherein at least one end portion of the rod member extends outside the mold cavity in the step of applying pressure to the mold. The particular method permits manufacturing a high quality porous preform free from splits or cracks, making it possible to obtain a high quality optical fiber preform free from residual bubbles.
摘要翻译： 本发明提供一种制造光纤预制棒的方法，该方法具有以下步骤：将由二氧化硅基材料制成的杆件设置在模具的空腔内，然后将模制材料装入模腔内，并向 从外部模制以在杆构件的表面上形成多孔层，从而获得多孔预成型件，其中杆构件的至少一个端部在向模具施加压力的步骤中延伸到模腔外部 。 特定的方法允许制造高质量的多孔预制件，不存在裂缝或裂缝，从而可以获得没有残留气泡的高品质光纤预制件。
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.037 秒)
