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11. 发明申请

US20080050075A1 Multi-wavelength, multimode optical fibers 有权
标题翻译：多波长多模光纤
公开(公告)号：US20080050075A1
公开(公告)日：2008-02-28
申请号：US11511174
申请日：2006-08-28
申请人： James William Fleming , George Edward Oulundsen
发明人： James William Fleming , George Edward Oulundsen
IPC分类号： G02B6/02
CPC分类号： G02B6/03627 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2201/32 , C03B2203/26 , C03C13/046 , G02B6/0288
摘要： A silicate optical fiber comprises a graded index silicate core co-doped with aluminum oxide, phosphorus oxide, germanium oxide and fluorine in unique compositions that we have discovered allow multimode, multi-wavelength operation without significant intermodal dispersion. Illustratively, the core comprises a multiplicity of compositions whose refractive indices are graded from a maximum at or near the center of the core to a minimum at the interface with the cladding. Each core composition resides within a sub-volume of a 5 dimensional phase space in which an optimum core profile shape is essentially constant over the wavelength range of operation of the fiber. For operation in the wavelength range of about 0.78 μm to 1.55 μm, each composition preferably comprises no more than approximately 6 mole % Al2O3, 9 mole % P2O5, 6 mole % GeO2, 6 mole % F, and 90-100 mole % SiO2.
摘要翻译：硅酸盐光纤包括与氧化铝，氧化磷，氧化锗和氟共掺杂的分级指数硅酸盐芯，其独特的组成，我们发现允许多模多波长操作，而没有显着的联合分散。说明性地，芯包括多个组合物，其折射率从芯的中心处或附近的最大值到与包层的界面处最小。每个核心组合物位于5维相位空间的子体积中，其中最佳核心轮廓形状在光纤的操作的波长范围上基本上是恒定的。为了在约0.78μm至1.55μm的波长范围内操作，每个组合物优选包含不超过约6摩尔％的Al 2 O 3 N 3，9摩尔％P

12. 发明授权

US06553790B1 Process for fabricating optical fiber involving tuning of core diameter profile 有权
标题翻译：制造光纤涉及芯直径轮廓调谐的工艺
公开(公告)号：US06553790B1
公开(公告)日：2003-04-29
申请号：US09567536
申请日：2000-05-09
申请人： James William Fleming, Jr. , George John Zydzik
发明人： James William Fleming, Jr. , George John Zydzik
IPC分类号： C03B3707
CPC分类号： C03B37/01254 , C03B37/01211 , C03B37/0124 , C03B2203/18
摘要： A silica-based core rod is traversed by a heat source along its longitudinal axis, to provide heated, softened regions. During the traverse, compressive or tensile movements are provided along the rod's longitudinal axis, these movements inducing, respectively, increases or decreases in the core diameter at the softened regions. By providing selective core diameter increases and/or decreases across the entire length of the core rod, a desired core diameter profile is attained. It is possible to attain a substantially uniform core diameter, or a varying core diameter profile that provides particular properties, such as systematically varying dispersion. In addition, due to the ability to increase core diameter and core rod diameter in a controlled manner, it is possible to make larger core rods, and in turn larger fiber preforms, than presently possible.
摘要翻译：二氧化硅基芯棒沿其纵向轴线被热源横穿，以提供加热的软化区域。在横移过程中，沿着杆的纵向轴线提供压缩或拉伸运动，这些运动分别在软化区域处引起芯直径的增加或减小。通过在芯棒的整个长度上提供选择的芯直径增加和/或减小，获得期望的芯直径分布。可以获得基本均匀的芯直径或提供特定性能的变化的芯直径轮廓，例如系统变化的分散体。另外，由于能够以受控的方式增加芯直径和芯棒直径，所以可以制造比目前可能的更大的芯棒，以及大的纤维预制件。

13. 发明授权

US5692087A Optical fiber with low OH impurity and communication system using the optical fiber 失效
标题翻译：具有低OH杂质的光纤和使用光纤的通信系统
公开(公告)号：US5692087A
公开(公告)日：1997-11-25
申请号：US403044
申请日：1995-03-13
申请人： Fred Paul Partus , Gordon Albert Thomas , Robert Michael Atkins , James William Fleming, Jr.
发明人： Fred Paul Partus , Gordon Albert Thomas , Robert Michael Atkins , James William Fleming, Jr.
IPC分类号： G02B6/00 , C03B37/018 , G02B6/16
CPC分类号： C03B37/01861 , C03B37/01815 , C03B37/01823 , C03B37/01869
摘要： An optical fiber formed from a glass preform substantially free of OH impurities is disclosed. The optical fiber is made to be free of OH impurities by a method having the steps of introducing a moving stream of vapor mixture including at least one compound glass-forming precursor together with an oxidizing medium into a tube, while generating a hydrogen-fee isothermal plasma on an outer surface of the tube to react the mixture and produce a glassy deposit on an inner surface of the tube. The glass preform is drawn to produce the optical fiber.
摘要翻译：公开了一种由基本上不含OH杂质的玻璃预制件形成的光纤。通过以下步骤使光纤不含OH杂质，该方法具有以下步骤：将包含至少一种复合玻璃形成前体的蒸气混合物与氧化介质一起引入管中，同时产生氢费等温等离子体在管的外表面上以使混合物反应并在管的内表面上产生玻璃沉积物。拉制玻璃预成型件以制造光纤。

14. 发明授权

US5672192A Method of making optical fiber using a plasma torch fiber-drawing furnace 失效
标题翻译：使用等离子体焰炬拉丝炉制造光纤的方法
公开(公告)号：US5672192A
公开(公告)日：1997-09-30
申请号：US655580
申请日：1996-05-30
申请人： James William Fleming, Jr.
发明人： James William Fleming, Jr.
IPC分类号： G02B6/00 , C03B23/043 , C03B23/045 , C03B37/027 , C03B37/029
CPC分类号： C03B23/045 , C03B23/043 , C03B37/029 , C03B2205/68
摘要： In accordance with the invention, an optical fiber is made by the steps of providing an optical fiber preform having a longitudinal axis, rotating the preform about the axis, directing onto the preform a plasma torch which is reciprocated over a limited region parallel to the axis to define a heated region, and drawing a fiber from the heated region. Apparatus for making optical fiber comprises a rotatable mount for securing one end of a preform and rotating it about a vertical axis, a plasma torch for heating a drawing region on the preform, a positioning stage for moving the torch parallel to the vertical axis in a reciprocating manner, and a fiber drawing apparatus for drawing a fiber from the heated region of the preform.
摘要翻译：根据本发明，通过以下步骤制造光纤：提供具有纵向轴线的光纤预制棒，使预成型件围绕轴线旋转，将预成型件引导到预成型件上等离子体焰炬，其在平行于轴线的有限区域上往复运动以限定加热区域，并从加热区域拉伸纤维。用于制造光纤的装置包括用于固定预成型件的一端并绕其垂直轴线旋转的可旋转安装架，用于加热预成型件上的拉伸区域的等离子体焰炬，用于将手电筒平行于垂直轴线移动的定位台以及用于从预成型体的加热区域拉伸纤维的纤维拉伸装置。

15. 发明授权

US5979190A Method for manufacturing an article comprising a refractory a dielectric body 失效
$Method for manufacturing an article comprising a refractory a dielectric body$
标题翻译：一种用于制造包括电介质体耐火材料的制品的方法
公开(公告)号：US5979190A
公开(公告)日：1999-11-09
申请号：US118743
申请日：1998-07-17
申请人： James William Fleming, Jr. , Robert M. Pafchek
发明人： James William Fleming, Jr. , Robert M. Pafchek
IPC分类号： G02B6/00 , B01J19/08 , C03B20/00 , C03B29/02 , C03B37/012 , C03B37/014 , C03C23/00 , C03C25/62 , C03B37/01
CPC分类号： C03C25/6293 , C03B29/02 , C03B37/01237 , C03B37/0148 , C03B37/01493 , C03C23/006 , C03B2201/03 , C03B2201/04
摘要： A refractory dielectric body is heated with a plasma fireball at conditions which do not result in substantial removal of a surface portion of the body, yet which are sufficient to reduce both surface and bulk impurities. Typically, the body is treated with the plasma in the absence of simultaneous deposition of material onto the body. Advantageously, an isothermal, oxygen or oxygen-containing plasma is utilized. The invention is useful for reducing chlorine impurities by at least about 30% to a depth of at least about 10 .mu.m, with accompanying reduction of hydroxyl impurities. The invention thus provides a useful method for reducing the concentration of impurities that contribute to imperfections during the process of drawing fiber from an optical fiber preform, without requiring substantial removal of the surface of the preform.
摘要翻译：在不会导致主体的表面部分的基本去除的条件下，用等离子体火球加热难熔电介质体，但这足以减少表面和体积杂质。通常，在不将材料同时沉积到身体上的情况下，用等离子体处理身体。有利地，使用等温，含氧或含氧等离子体。本发明可用于将氯杂质减少至少约30％至至少约10μm的深度，伴随着羟基杂质的减少。因此，本发明提供了一种有用的方法，用于在从纤维预制棒中拉伸纤维的过程中减少有助于缺陷的杂质的浓度，而不需要基本上去除预型体的表面。

16. 发明授权

US4011006A GeO.sub.2 -B.sub.2 O.sub.3 -SiO.sub.2 Optical glass and lightguides 失效
标题翻译： GEO'2'-B'2'O'3'-SIO'2'+ 0 OPTICAL GLASS AND LIGHTGUIDES
公开(公告)号：US4011006A
公开(公告)日：1977-03-08
申请号：US641651
申请日：1975-12-17
申请人： James William Fleming, Jr. , Raymond Edward Jaeger , Thomas John Miller
发明人： James William Fleming, Jr. , Raymond Edward Jaeger , Thomas John Miller
IPC分类号： C03B19/10 , C03B37/012 , C03C1/02 , C03C3/06 , C03C13/04 , C03C3/08 , G02B5/14
CPC分类号： C03C3/06 , C03B19/1065 , C03B37/01291 , C03C1/02 , C03C13/04 , C03B2201/10 , C03B2201/31 , C03C2201/10 , C03C2201/31 , C03C2203/10 , Y10S501/90 , Y10T428/2929
摘要： High silica content optical glasses, containing more volatile oxides such as GeO.sub.2 and B.sub.2 O.sub.3, are produced by plasma fusion of powders without inordinately high loss of the more volatile constituents. The powders are produced by a process including the heat treatment of intimately mixed materials, which include the glass forming constituents. Small quantities of GeO.sub.2 are included in borosilicate glass to suppress bubble formation. Pairs of glass compositions have been found, with sufficient index of refraction difference to produce guidance in optical transmission lines, while possessing sufficient thermal expansion match to reduce stresses in the line.

17. 发明授权

US3954431A Optical glass and its production 失效
标题翻译：光学玻璃及其制作
公开(公告)号：US3954431A
公开(公告)日：1976-05-04
申请号：US509652
申请日：1974-09-26
申请人： James William Fleming, Jr. , Raymond Edward Jaeger , Thomas John Miller
发明人： James William Fleming, Jr. , Raymond Edward Jaeger , Thomas John Miller
IPC分类号： C03B19/01 , C03B37/012 , C03C1/02 , C03C3/00 , C03C3/06 , C03C3/089 , C03C13/04 , C03B1/00 , C03B23/20
CPC分类号： C03C3/089 , C03B19/01 , C03B37/01291 , C03C1/02 , C03C13/04 , C03C3/00 , C03C3/06 , C03B2201/10 , C03B2201/31 , C03C2201/10 , C03C2201/31 , C03C2203/10
摘要： High silica content optical glasses, containing more volatile oxides such as GeO.sub.2 and B.sub.2 O.sub.3, are produced by plasma fusion of powders without inordinately high loss of the more volatile constituents. The powders are produced by a process including the heat treatment of intimately mixed materials, which include the glass forming constituents. Small quantities of GeO.sub.2 are included in borosilicate glass to suppress bubble formation. Pairs of glass compositions have been found, with sufficient index of refraction difference to produce guidance in optical transmission lines, while possessing sufficient thermal expansion match to reduce stresses in the line.
摘要翻译：含有更多挥发性氧化物如GeO 2和B 2 O 3的高二氧化硅含量的光学玻璃通过粉末的等离子体熔融而没有较高挥发性组分的高损失而产生。该粉末是通过包括玻璃形成成分在内的紧密混合材料的热处理的方法生产的。少量的GeO 2被包括在硼硅酸盐玻璃中以抑制气泡形成。已经发现了一对玻璃组合物，具有足够的折射率差异以在光学传输线中产生引导，同时具有足够的热膨胀匹配以减少线中的应力。

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