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1. 发明授权

US06621624B2 Optical gain fibers 失效
公开(公告)号：US06621624B2
公开(公告)日：2003-09-16
申请号：US10044027
申请日：2002-01-10
申请人： Polly W. Chu , Adam J. G. Ellison , Douglas E. Goforth , Daniel W. Hawtof , Joseph M. Whalen
发明人： Polly W. Chu , Adam J. G. Ellison , Douglas E. Goforth , Daniel W. Hawtof , Joseph M. Whalen
IPC分类号： H01S300
CPC分类号： C03C3/06 , C03C3/083 , H01S3/06716 , H01S3/06754 , H01S3/1601 , H01S2301/04
摘要： Disclosed are optical gain fibers which include an erbium-containing core and a cladding surrounding the core and which have ripple of less than about 25% over about a 40 nm wide window or ripple of less than about 15% over about a 32 nm wide window, or both. In one embodiment, the optical gain fibers are pumpable at 980 nm and at 1480 nm. In another embodiment, the optical gain fibers are fusion sliceable. In yet another embodiment, the core includes oxides erbium; the cladding includes silicon dioxide; and the optical gain fiber has a passive loss of less than about 0.5% of the peak absorption of the erbium absorption band in the vicinity of 1530 nm. The optical gain fibers of the present invention have a wider gain window, improved flatness across the gain window, and/or increased gain as compared to conventional optical gain fibers. Accordingly, they are useful in amplifying optical signals, particularly signals which need to be repeatedly amplified over the course of a long-haul transmission, without losses in the signal quality that are commonly encountered in conventional optical signal amplifying methods.

2. 发明授权

US06598425B1 Method for collecting soot 失效
标题翻译：收集烟灰的方法
公开(公告)号：US06598425B1
公开(公告)日：2003-07-29
申请号：US09718060
申请日：2000-11-20
申请人： Daniel W. Hawtof , Joseph M. Whalen
发明人： Daniel W. Hawtof , Joseph M. Whalen
IPC分类号： C03B1906
CPC分类号： C03B19/14 , C03B19/01 , C03B19/06 , C03B19/106 , C03B19/1407 , C03B19/1415 , C03B19/1423 , C03B19/1453 , C03B19/1484 , C03B2201/12 , C03B2201/28 , C03B2201/30 , C03B2201/31 , C03B2201/32 , C03B2201/34 , C03B2201/36 , C03B2201/40 , C03B2201/42 , C03B2201/50 , C03B2207/06 , C03B2207/12 , C03B2207/14 , C03B2207/32 , C03B2207/34 , C03B2207/46 , C03B2207/62
摘要： A method and apparatus for manufacturing optical components. A burner generates soot, and a surface area collector collects the soot. The burner is disposed such that the soot collected within the surface area collector is substantially not reheated by subsequently deposited soot. Magnetic forces direct the soot to desired location(s) within the surface area collector. The surface area collector operates at relatively low temperatures sufficient to retain rather volatile substances, such as fluorine, in the soot.
摘要翻译：一种用于制造光学部件的方法和装置。燃烧器产生烟灰，表面积收集器收集烟灰。燃烧器被设置成使得在表面积收集器内收集的烟灰基本上不被随后沉积的烟灰再加热。磁力将烟灰引导到表面积收集器内的所需位置。表面积收集器在相对低的温度下操作，足以在烟灰中保留相当易挥发的物质，例如氟。

3. 发明授权

US06739156B1 Maintaining a plug-free system during a silica soot creation process 失效
标题翻译：在二氧化硅烟灰创建过程中维护无铅系统
公开(公告)号：US06739156B1
公开(公告)日：2004-05-25
申请号：US09762274
申请日：2001-02-01
申请人： Daniel W. Hawtof , John Stone, III , Joseph M. Whalen
发明人： Daniel W. Hawtof , John Stone, III , Joseph M. Whalen
IPC分类号： C03B31014
CPC分类号： C03B19/1415 , C03B37/01413 , C03B2207/32 , C03B2207/34
摘要： The present invention is directed to a system and method for delivering liquid reactants through a burner assembly to form soot used in the manufacture of glass, and in particular, optical waveguides. Due to the tendency of liquid reactants to react to form solids when exposed to water in the air, an evaporative liquid is first delivered through the burner assembly to the combustion zone. Once steady state liquid flow has been achieved in the system, the evaporative liquid is transitioned to the liquid reactant. The liquid reactant is delivered along the same path to the burner assembly, which discharges the liquid reactant into the combustion zone as an atomized liquid to form soot used in the manufacture of glass. Once the desired quantity of soot has been formed, the liquid reactant is transitioned back to the evaporative liquid while maintaining steady state flow. After the liquid reactant has cleared the system, flow of the evaporative liquid is terminated and the burner assembly flame turned off. Because the evaporative liquid is the last liquid to leave the burner assembly, no reactants are present to form solids and the burner assembly remains plug free. Preferably, the liquid reactants are housed within a dry environment to provide a reaction free area for staging the liquid reactants prior to delivery, thus facilitating and expediting multiple system runs with different liquid reactants.
摘要翻译：本发明涉及一种用于通过燃烧器组件输送液体反应物以形成用于制造玻璃，特别是光波导的烟灰的系统和方法。由于当暴露于空气中的水时液体反应物反应形成固体的倾向，首先通过燃烧器组件将蒸发的液体输送到燃烧区。一旦在系统中达到稳态液体流动，则蒸发液体转变为液体反应物。液体反应物沿着相同的路径输送到燃烧器组件，其将液体反应物作为雾化液体排放到燃烧区中，以形成用于制造玻璃的烟炱。一旦已经形成所需量的烟灰，液体反应物在保持稳态流动的同时转移回蒸发液体。在液体反应物已经清除系统之后，蒸发液体的流动被终止并且燃烧器组件的火焰被关闭。因为蒸发液体是离开燃烧器组件的最后一个液体，所以不存在反应物以形成固体并且燃烧器组件保持无堵塞。优选地，液体反应物容纳在干燥环境中以提供反应自由区域，用于在输送之前分级液体反应物，从而促进并加速与不同液体反应物的多次系统运行。

4. 发明授权

US08037717B2 Methods and apparatus for pulsed doping or drying a soot preform 有权
标题翻译：用于脉冲掺杂或干燥烟炱预制件的方法和装置
公开(公告)号：US08037717B2
公开(公告)日：2011-10-18
申请号：US10053365
申请日：2001-10-26
申请人： Steven B. Dawes , Daniel W. Hawtof , Michael T. Murtagh , John S. Rosettie , Andrew P. Schermerhorn , Merrill F. Sproul , John Stone, III , Pushkar Tandon
发明人： Steven B. Dawes , Daniel W. Hawtof , Michael T. Murtagh , John S. Rosettie , Andrew P. Schermerhorn , Merrill F. Sproul , John Stone, III , Pushkar Tandon
IPC分类号： C03B37/023
CPC分类号： C03B37/01446 , C03B37/0146 , C03B2201/12 , C03B2201/20
摘要： A method of manufacturing an optical waveguide preform includes providing a first process gas atmosphere to a soot preform contained in a vessel. The first atmosphere is held in the vessel for a first reacting time sufficient to at least partially dope or dry the soot preform. The vessel is then at least partially refilled with a second doping or drying atmosphere. The second doping or drying atmosphere is held in the vessel for a second reacting time sufficient to further dope or dry the soot preform.
摘要翻译：一种制造光波导预制件的方法包括向容纳在容器中的烟灰预制件提供第一工艺气体气氛。将第一气氛保持在容器中，以达到足以至少部分地掺杂或干燥烟灰预型体的第一反应时间。然后用第二掺杂或干燥气氛至少部分地再填充容器。将第二掺杂或干燥气氛保持在容器中第二反应时间足以进一步掺杂或干燥烟灰预型体。

5. 发明授权

US06743011B2 Multi-layer burner module, adapter, and assembly therefor 有权
标题翻译：多层燃烧器模块，适配器及其组装
公开(公告)号：US06743011B2
公开(公告)日：2004-06-01
申请号：US10027846
申请日：2001-12-19
申请人： Shivalik Bakshi , Daniel W. Hawtof , John S. Rosettie , Amy L. Rovelstad , John Stone, III
发明人： Shivalik Bakshi , Daniel W. Hawtof , John S. Rosettie , Amy L. Rovelstad , John Stone, III
IPC分类号： F23D1448
CPC分类号： F23D23/00 , C03B37/0142 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2201/32 , C03B2201/34 , C03B2207/85 , F23D91/02 , F23D2900/21005
摘要： A burner module for delivering a flow of chemical reactants to a combustion site of a chemical vapor deposition process includes a plurality of substantially planar layers. The substantially planar layers are arranged in a generally parallel and fixed relationship and define an inlet, an outlet and a passage fluidly connecting the inlet and outlet. At least one of the layers is a distribution layer having a plurality of apertures therethrough and fluidly communicating with the passage. The plurality of apertures collectively define a non-uniform pattern arranged and configured to improve the uniformity of a flow out through the outlet. Burner adapter and assembly embodiments are also included.
摘要翻译：用于将化学反应物流输送到化学气相沉积工艺的燃烧部位的燃烧器模块包括多个基本平坦的层。基本上平面的层被布置成大致平行和固定的关系，并且限定入口，出口和流体连接入口和出口的通道。层中的至少一个是具有穿过其并与通道流体连通的多个孔的分布层。多个孔共同限定了布置和配置为改善通过出口流出的均匀性的不均匀图案。还包括燃烧器适配器和组装实施例。

6. 发明授权

US5284499A Method and apparatus for drawing optical fibers 失效
标题翻译：拉丝光纤的方法和装置
公开(公告)号：US5284499A
公开(公告)日：1994-02-08
申请号：US877626
申请日：1992-05-01
申请人： Jill A. Harvey , Daniel W. Hawtof , Henry A. Spicer
发明人： Jill A. Harvey , Daniel W. Hawtof , Henry A. Spicer
IPC分类号： G02B6/00 , C03B37/027 , C03B37/029
CPC分类号： C03B37/029 , C03B37/02718
摘要： A method and apparatus for drawing an optical waveguide fiber which minimizes fiber bow caused by differential stresses in the cladding layer of the fiber are disclosed. The fiber is drawn from a preform which is heated in a draw furnace. Gases introduced at the top of the furnace form a boundary layer adjacent to the fiber which passes through the furnace, along with the fiber, into a tube. The tube isolates the fiber from the ambient atmosphere so that the boundary layer of gases established in the furnace remains substantially uniform until the viscosity of the cladding layer of the fiber is high enough to minimize differential stresses around the circumference of the fiber.
摘要翻译：公开了一种用于绘制光导纤维的方法和装置，其使由光纤的包层中的微分应力引起的纤维弓最小化。纤维从在拉丝炉中加热的预制件中拉出。在炉顶部引入的气体形成与纤维相邻的边界层，该纤维与纤维一起通过炉管。管将环境气氛中的纤维隔离，使得在炉中建立的气体边界层保持基本均匀，直到纤维包层的粘度高到足以使围绕纤维圆周的不均匀应力最小化。

7. 发明授权

US08485352B1 Yad including mezuzah casement 有权
标题翻译：包括mezuzah平纹
公开(公告)号：US08485352B1
公开(公告)日：2013-07-16
申请号：US13356747
申请日：2012-01-24
申请人： Daniel W. Hawtof
发明人： Daniel W. Hawtof
IPC分类号： A45C11/00
CPC分类号： A47G33/00
摘要： A yad-mezuzah casement includes a yad, at least a portion of which serves as a mezuzah casement. A mezuzah may be contained within the mezuzah casement. The mezuzah casement may be contained within the yad, attached to an outer surface of the yad or interposed between the yad and a bracket that includes an attachment fixture used for mounting the yad-mezuzah casement to a doorpost of a building or a room. The yad-mezuzah casement, which itself includes no attachment fixture, provides an opportunity for continuous display of a yad that may be received by a Jewish youth participant at a B'nai Mitzvah ceremony. Together, the yad-mezuzah casement and the mounting bracket provide a yad-mezuzah casement kit.
摘要翻译： yad-mezuzah平底包括一个yad，其中至少一部分作为mezuzah平纹。 mezuzah可以包含mezuzah平底锅。 mezuzah平底盒可以包含在yad中，附着在yad的外表面上，或者插入在yad和支架之间，其包括用于将yad-mezuzah平底板安装到建筑物或房间的门柱上的附接夹具。这个自己没有附件的yad-mezuzah剥皮提供了一个连续显示犹太青年参与者在B'nai Mitzvah仪式可能会收到的屁股的机会。一起，yad-mezuzah平开窗和安装支架提供一个yad-mezuzah平纸包。

8. 发明授权

US06837076B2 Method of producing oxide soot using a burner with a planar burner face 有权
标题翻译：使用具有平面燃烧器面的燃烧器生产氧化烟炱的方法
公开(公告)号：US06837076B2
公开(公告)日：2005-01-04
申请号：US10361947
申请日：2003-02-10
申请人： Daniel W. Hawtof
发明人： Daniel W. Hawtof
IPC分类号： F23D14/14 , C01B13/20 , C01B33/18 , C03B8/04 , C03B19/14 , C03B37/014 , F23D14/56 , F23D14/58 , F23D99/00 , H04R29/00 , C03B37/018
CPC分类号： F23D14/58 , C01B13/20 , C01B33/18 , C01B33/183 , C03B19/1423 , C03B37/0142 , C03B2207/02 , C03B2207/32 , C03B2207/34 , C03B2207/42 , F23D14/56 , F23D91/02 , F23D2203/102
摘要： A burner and a method for producing an inorganic soot such as silica comprising a plurality of substantially planar layers having multiple openings therethrough formed by a micromachining process. The openings are in fluid communication with a precursor inlet and a gas inlet to permit the gas and the precursor to flow through and exit the burner. The burner produces a flame from a combustible gas in which the precursor undergoes a chemical reaction to form the soot.
摘要翻译：一种燃烧器和用于生产无机烟灰的方法，例如二氧化硅，其包括多个基本平坦的层，其具有通过微加工过程形成的多个开口。开口与前体入口和气体入口流体连通，以允许气体和前体流过并离开燃烧器。燃烧器从可燃气体产生火焰，其中前体经历化学反应以形成烟灰。

9. 发明授权

US06672106B1 Method and apparatus for forming soot for the manufacture of glass 失效
标题翻译：用于形成用于制造玻璃的烟灰的方法和装置
公开(公告)号：US06672106B1
公开(公告)日：2004-01-06
申请号：US09762307
申请日：2001-01-31
申请人： Daniel W. Hawtof , John Stone, III
发明人： Daniel W. Hawtof , John Stone, III
IPC分类号： C03B2000
CPC分类号： C03B19/1423 , C03B37/0142 , C03B2201/06 , C03B2201/28 , C03B2201/30 , C03B2201/34 , C03B2201/40 , C03B2201/50 , C03B2201/54 , C03B2207/06 , C03B2207/08 , C03B2207/12 , C03B2207/14 , C03B2207/20 , C03B2207/22 , C03B2207/32 , C03B2207/34 , C03B2207/42 , C03B2207/46 , C03B2207/80 , C03B2207/81 , Y02P40/57
摘要： The present invention is directed to a method and apparatus for forming soot used in making glass, and in particular, optical waveguides. A liquid precursor (66) is first fed into orifice (52) of a liquid orifice insert (48) within an injector (44) positioned within an atomizing burner assembly, and is thereafter discharged from the injector into a pressurization chamber (56). An atomization gas (70) is also fed into the pressurization chamber (56) to mix with the liquid precursor liquid stream (68) which breaks into droplets (76). The liquid precursor and atomization gas arm forced under pressure out of an atomization orifice (32) on the face of the burner (30) assembly. Flame gas (74), reaction gas (84) and shield gas (82) are ejected from burner orifices (40, 38, 36 and 34) to produce the flame. The atomized liquid precursor thus discharged is fed into the flame (72) produced at the face of the burner assembly where the atomized liquid precursor reacts with the flame to form soot (78) on a rotating mandrel (80).
摘要翻译：本发明涉及一种用于形成用于制造玻璃，特别是光波导的烟灰的方法和装置。液体前体（66）首先被供给到位于雾化燃烧器组件内的喷射器（44）内的液体孔口插入件（48）的孔口（52）中，然后从喷射器排出到加压室（56）中。雾化气体（70）也被供给到加压室（56）中以与液体前体液体流（68）混合，该液体流体液流（68）分解成液滴（76）。液体前体和雾化气体臂在压力下被迫从燃烧器（30）组件的表面上的雾化孔（32）流出。火焰气体（74），反应气体（84）和保护气体（82）从燃烧器孔（40,38,36和34）喷出以产生火焰。这样排出的雾化的液体前体被送入在燃烧器组件的表面产生的火焰（72）中，其中雾化的液体前体与火焰反应，以在旋转的心轴（80）上形成烟灰（78）。

10. 发明授权

US06349163B1 Dispersion compensating single mode waveguide 失效
标题翻译：色散补偿单模波导
公开(公告)号：US06349163B1
公开(公告)日：2002-02-19
申请号：US09435735
申请日：1999-11-08
申请人： A. Joseph Antos , George E. Berkey , Daniel W. Hawtof , G. Thomas Holmes , Yanming Liu
发明人： A. Joseph Antos , George E. Berkey , Daniel W. Hawtof , G. Thomas Holmes , Yanming Liu
IPC分类号： G02B602
CPC分类号： G02B6/02009 , G02B6/02261 , G02B6/0228 , G02B6/0286 , G02B6/03644 , G02B6/03661 , G02B6/03666 , Y10S359/90
摘要： A dispersion compensating single mode optical waveguide fiber designed to change the wavelength window of operation of a link from 1310 nm to 1550 nm. The dispersion compensating waveguide fiber is characterized by a core glass region refractive index profile comprised of at least three segments. The segment on the waveguide center has a positive relative refractive index. At least one segment, spaced apart from, the waveguide centerline has a negative relative refractive.
摘要翻译：一种色散补偿单模光纤，设计用于改变从1310nm到1550nm的链路的工作波长窗口。色散补偿波导纤维的特征在于由至少三个片段组成的芯玻璃区域折射率分布。波导中心的区段具有正的相对折射率。与波导中心线间隔开的至少一个段具有负的相对折射。

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