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1.发明授权
公开(公告)号：US5198270A
公开(公告)日：1993-03-30
申请号：US789734
申请日：1991-11-08
IPC分类号： C03B37/016 , C03B37/018
CPC分类号： C03B37/01838 , C03B37/016 , C03B2201/34 , C03B2201/36 , C03B2203/22
摘要： A method of forming an optical fiber. A solution (12) is prepared in which are dissolved both a ladder siloxane and one or more dopants which are to be incorporated into the final silica or silicate glass. The solution is drawn into the interior of a silica tube (10) and is left as a coating (26) on the inside wall. The solvent is evaporated, and the rigid coating is cured at 150.degree. C. The filling and curing process may be repeated for multiple layers. The cured coating is then oxidized and fused into doped silica. The resultant tube preform is collapsed and drawn into a fiber. The method allows the introduction of nearly arbitrary constituents into the silica, including glass-forming elements and low-level dopants. The core-cladding interface is improved if a layer of glass-forming soot particles (28) is first deposited and the liquid is soaked into and over the soot.
摘要翻译： 一种形成光纤的方法。 制备溶液（12），其中溶解有梯形硅氧烷和一种或多种掺入到最后的二氧化硅或硅酸盐玻璃中的掺杂剂。 溶液被吸入石英管（10）的内部，并作为涂层（26）留在内壁上。 蒸发溶剂，刚性涂层在150℃下固化。填充和固化过程可以重复多层。 然后将固化的涂层氧化并熔融成掺杂的二氧化硅。 所得的管预成型件被折叠并且被拉伸成纤维。 该方法允许将几乎任意的成分引入到二氧化硅中，包括玻璃形成元件和低级掺杂剂。 如果首先沉积一层玻璃形成的烟灰颗粒（28）并且将液体浸泡在烟灰中和上方，则核 - 包层界面得到改善。
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公开(公告)号：US4474593A
公开(公告)日：1984-10-02
申请号：US529775
申请日：1983-09-06
申请人： Matthew J. Andrejco , Eugene Potkay
发明人： Matthew J. Andrejco , Eugene Potkay
IPC分类号： C03B37/014 , C03B20/00
CPC分类号： C03B37/01413 , C03B2207/06 , C03B2207/08 , C03B2207/20 , C03B2207/42
摘要： A technique for fabricating a lightguide soot-boule. Gaseous reactants are directed through an inner tube of a torch having a plurality of coaxially aligned tubes. A glassy soot is formed at the output of the torch by a flame hydrolysis reaction and at least a portion of the soot is deposited on a forming soot-boule. The inner tube may be axially moved during the soot deposition process to alter or maintain the refractive index of the boule.
摘要翻译： 一种制造导光烟灰缸的技术。 气态反应物被引导通过具有多个同轴排列的管的手电筒的内管。 在火炬的输出处通过火焰水解反应形成玻璃烟炱，并且至少一部分烟炱沉积在形成的烟灰le上。 在烟灰沉积过程期间内管可以轴向移动以改变或维持该坯料的折射率。
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公开(公告)号：US4428762A
公开(公告)日：1984-01-31
申请号：US371629
申请日：1982-04-26
申请人： Matthew J. Andrejco , Eugene Potkay
发明人： Matthew J. Andrejco , Eugene Potkay
IPC分类号： C03B37/014 , C03B19/06 , C03B37/025 , C03B37/07
CPC分类号： C03B37/0142 , C03B37/01406 , C03B37/0144 , C03B2207/06 , C03B2207/08 , C03B2207/20 , C03B2207/42
摘要： A vapor-phase axial deposition system (5) for fabricating a lightguide soot boule (16). The system (5) is comprised of a short cylindrical housing (10) having end plates (26--26) affixed thereto. A starting member (58) is radially directed into the central portion of the housing (10) and a torch (12) is activated to direct a stream of glassy soot thereat. The member (58) is simultaneously rotated and withdrawn from the housing (10) as a cylindrical, porous, soot boule is formed on the end thereof. The housing (10) having a substantially two-dimensional character eliminates secondary gas flow within the housing (10) resulting in enhanced deposition rates and repeatability.
摘要翻译： 一种用于制造光导烟炱柱（16）的气相轴向沉积系统（5）。 系统（5）包括具有固定到其上的端板（26-26）的短圆柱形壳体（10）。 起始构件（58）径向地引导到壳体（10）的中心部分，并且启动炬（12）以在其上引导玻璃烟炱。 当在其端部上形成圆柱形多孔的烟炱杆时，构件（58）同时被旋转并从壳体（10）中退出。 具有基本上二维特征的壳体（10）消除了壳体（10）内的二次气体流动，从而提高了沉积速率和重复性。
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公开(公告)号：US4417692A
公开(公告)日：1983-11-29
申请号：US371628
申请日：1982-04-26
申请人： Matthew J. Andrejco , Eugene Potkay
发明人： Matthew J. Andrejco , Eugene Potkay
IPC分类号： C03B37/014 , F23D13/36
CPC分类号： C03B37/0142 , C03B2207/06 , C03B2207/08 , C03B2207/20 , C03B2207/42
摘要： A reactant deposition torch (10) has a plurality of concentric glass tubes (16, 18, 20, 24 and 26). Various gases pass through the tubes (18, 20, 24 and 26) while particle producing reactants pass through the inner tube (16). The concentricity of the tubes is accurately maintained by a plurality of precision machined splines located on the outer periphery of the inner and intermediate tubes (16, 18, 20 and 24). Additionally, the inner tube (16) is movable in the axial direction during the deposition process to controllably alter the amount of reactant to be deposited.
摘要翻译： 反应物沉积炬（10）具有多个同心玻璃管（16,18,20,24和26）。 各种气体通过管（18,20,24和26），同时产生粒子的反应物通过内管（16）。 通过位于内管和中间管（16,18,20和24）的外周上的多个精密加工花键来精确地维持管的同心度。 此外，内部管16可以在沉积过程中沿轴向移动，以可控制地改变待沉积的反应物的量。
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公开(公告)号：US4257797A
公开(公告)日：1981-03-24
申请号：US80482
申请日：1979-10-01
IPC分类号： C03B37/018 , C03C25/02 , C03B37/02
CPC分类号： C03B37/018
摘要： A method of practicing the MCVD process is disclosed. In the inventive process, the core deposition is completed prior to completion of the cladding. An intermediate preform structure with a core-to-clad ratio greater than that desired in the ultimate fiber is consequently obtained. Subsequent to internal core deposition, additional material is added externally to complete the cladding thereby yielding an optical fiber preform with the desired core-to-clad ratio.
摘要翻译： 公开了一种实施MCVD工艺的方法。 在本发明的方法中，在包层完成之前完成芯沉积。 因此获得了芯包覆比大于最终纤维所需的中间预制件结构。 在内部芯沉积之后，在外部添加附加材料以完成包层，从而产生具有所需芯 - 包层比的光纤预制件。
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公开(公告)号：US20090262779A1
公开(公告)日：2009-10-22
申请号：US12372495
申请日：2009-02-17
CPC分类号： G01K11/3206 , G01L1/246 , G02B6/02042 , G02B6/021 , G02B6/29319
摘要： A twin core fiber for sensor applications is developed. It is particularly useful in de-coupling the strain and temperature and thus obtaining both measurement parameters at the same time and location. It is also particularly useful for measuring the temperature in a high humidity environment. The twin core fiber has two cores and each of the cores having a different dopant regime. Also, each of the cores includes a grating having substantially the same grating period.
摘要翻译： 开发了用于传感器应用的双芯光纤。 它在应变和温度的去耦合中是特别有用的，因此在同一时间和位置获得两个测量参数。 它也特别适用于在高湿度环境下测量温度。 双芯光纤具有两个芯，并且每个芯具有不同的掺杂剂状态。 此外，每个芯包括具有基本上相同的光栅周期的光栅。
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7.发明授权
公开(公告)号：US4812153A
公开(公告)日：1989-03-14
申请号：US2731
申请日：1987-01-12
IPC分类号： C03B37/014 , C03C25/02
CPC分类号： C03B37/014 , C03B37/01446 , C03B2201/10 , C03B2201/28 , C03B2201/30 , C03B2201/31 , C03B2201/32 , C03B2201/34 , C03B2201/50 , C03B2201/54 , C03B2203/22 , Y10S65/90
摘要： A glass body having a graded (substantially Gaussian) index profile is produced by a process that comprises providing a doped porous body (e.g., having a uniform dopant distribution), heat treating the porous body in a halogen-containing atmosphere, and consolidating the porous body into the glass body. The heat treatment removes a predetermined portion of the dopant from the porous body, such that the radial dopant profile in the glass body differs from the initial profile in the porous body, and such that the Gaussian index profile results. Exemplarily, the porous body is a uniformly germania-doped, VAD-produced, high-silica rod having radially decreasing density, and the heat treatment comprises an 8-hour densification soak at 1300.degree. C. in 20% Cl, 80% He. In a preferred embodiment, silica overcladding is deposited on a graded index core rod produced according to the invention, and fiber drawn from the resulting composite glass body.
摘要翻译： 通过包括提供掺杂的多孔体（例如，具有均匀的掺杂剂分布）的方法，在含卤素的气氛中热处理多孔体，并且将多孔体 身体进入玻璃体。 热处理从多孔体中去除掺杂剂的预定部分，使得玻璃体中的径向掺杂剂分布与多孔体中的初始分布不同，并且导致高斯折射率分布。 示例性地，多孔体是均匀的掺杂氧化钆的VAD生产的，具有径向减小的密度的高硅石棒，并且热处理包括在20％Cl，80％He中在1300℃下8小时的致密化浸泡。 在优选的实施方案中，二氧化硅外包层沉积在根据本发明制备的渐变折射率芯棒上，并从所得到的复合玻璃体中拉出纤维。
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公开(公告)号：US4450333A
公开(公告)日：1984-05-22
申请号：US383386
申请日：1982-05-28
IPC分类号： C03B37/029 , H05B6/02 , H05B6/30 , C03B27/02 , F27B14/10
CPC分类号： C03B37/029 , C03B2205/63 , C03B2205/64 , C03B2205/70
摘要： A high frequency induction furnace (10) for reflowing a portion of a lightguide preform (44) in order to draw a fiber (52) therefrom. The furnace (10) has a centrally located tubular susceptor (34) therein having a thin coating of the preform material (e.g., silica) on at least a portion of the inside surface thereof. A cylinder (62) is positioned in concentric, spaced relation about the susceptor (34) and is surrounded by an insulating grain (36). A high frequency coil (38) is energized to couple its electromagnetic field to the susceptor (34) to heat and reflow a portion of the preform (44) in order to draw the fiber (52) therefrom. The thin coating prevents contaminating particulates from migrating from small cracks in the inside surface of the susceptor (34) onto the preform (44) while the cylinder (62) prevents small particulate emanating from the insulating grain (36) from being drawn through larger cracks in the susceptor and onto the preform and/or the fiber 52.
摘要翻译： 一种用于回流光导预制件（44）的一部分以便从其中拉出纤维（52）的高频感应炉（10）。 炉（10）在其中具有中心定位的管状基座（34），其中在其内表面的至少一部分上具有预制件材料（例如二氧化硅）的薄涂层。 圆筒（62）围绕基座（34）以同心的间隔的关系定位并被绝缘颗粒（36）包围。 高频线圈（38）被通电以将其电磁场耦合到基座（34），以加热和回流预成型件（44）的一部分，以从其中拉出纤维（52）。 薄的涂层防止污染的微粒从基座（34）的内表面中的小裂纹迁移到预成型件（44）上，同时气缸（62）防止从绝缘颗粒（36）发出的小的颗粒物不被较大的裂纹 在基座上和预制件和/或纤维52之间。
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