公开(公告)号：US20040031289A1

公开(公告)日：2004-02-19

申请号：US10219861

申请日：2002-08-15

Applicant: CeramOptec Industries, Inc.

Inventor： Wolfgang Neuberger ,  Leonid M. Blinov

IPC: C03B037/018

CPC classification number: C03B37/01426 ,  C03B2201/24 ,  C03C25/1061 ,  H05H2001/4615 ,  Y02P40/57

Abstract: A method is disclosed for the manufacture of optical fiber preforms using plasma enhanced chemical vapor deposition (PECVD). The invention consists of a cylindrical reactor in which material such as flourine-doped silica glass is deposited on a cylindrical silica rod. A furnace for regulating reactor temperature encases the reactor. A microwave generator coupled with a resonator and an H10 waveguide delivers microwave energy to the reactor, producing simultaneously symmetrical excitations in the E010 mode and a plasma surface wave in E01 mode located at the surface of the rod. A microwave plasma is scanned along the length of the rod through a slit in the reactor to deposit a homogeneous film of a desired thickness. The benefits of the present invention over the prior art include increased absorption of delivered power, and the ability to uniformly deposit films such as flourine-doped silica on rods with diameters of up to 30-35 mm and thus produce optical fiber preforms with diameters greater than 40 mm.

Abstract translation: 公开了一种使用等离子体增强化学气相沉积（PECVD）制造光纤预制件的方法。 本发明由圆柱形反应器组成，其中诸如掺杂有掺杂的二氧化硅玻璃的材料沉积在圆柱形二氧化硅棒上。 用于调节反应器温度的炉包装反应堆。 与谐振器和H10波导耦合的微波发生器将微波能量传递到反应器，在E010模式中产生同时对称的激发，并且在位于棒表面的E01模式中产生等离子体表面波。 沿着杆的长度扫描微波等离子体通过反应器中的狭缝，以沉积所需厚度的均质膜。 本发明相对于现有技术的优点包括增加的输送功率的吸收，以及将直径为30-35mm的棒均匀沉积诸如掺杂氟的二氧化硅的膜的能力，从而产生直径更大的光纤预制棒 超过40毫米。

公开(公告)号：US20030231846A1

公开(公告)日：2003-12-18

申请号：US10171337

申请日：2002-06-12

Inventor： James C. Fajardo ,  Michael T. Gallagher ,  James A. West ,  Natesan Venkataraman

IPC: G02B006/20

CPC classification number: G02B6/02328 ,  C03B37/0122 ,  C03B37/02781 ,  C03B2201/24 ,  C03B2201/40 ,  C03B2203/14 ,  C03B2203/222 ,  C03B2203/42 ,  C03C13/04 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02371

Abstract: A microstructured optical fiber is described. The microstructured optical fiber comprises an inner region and an outer region. The inner region includes an inner material and a plurality of holes formed in the inner material. The outer region surrounds the inner region, and includes an outer material. The softening point temperature of the inner material is greater than the softening point temperature of the outer material by at least about 50null C. Microstructured optical fiber preforms and methods for making the microstructured optical fibers are also described. The microstructured optical fiber may be made to have substantially undistorted holes in the inner region.

Abstract translation: 描述了微结构光纤。 微结构光纤包括内部区域和外部区域。 内部区域包括形成在内部材料中的内部材料和多个孔。 外部区域包围内部区域，并且包括外部材料。 内部材料的软化点温度比外部材料的软化点温度高至少约50℃。还描述了微结构化光纤预制件和制造微结构光纤的方法。 微结构化光纤可以在内部区域中具有基本上未失真的孔。

公开(公告)号：US6012304A

公开(公告)日：2000-01-11

申请号：US804234

申请日：1997-02-22

Applicant: Ted A. Loxley ,  John F. Blackmer ,  Klaus-Markus Peters

Inventor： Ted A. Loxley ,  John F. Blackmer ,  Klaus-Markus Peters

IPC: C03B19/06 ,  C03B19/12 ,  C03B20/00

CPC classification number: C03B19/12 ,  C03B19/06 ,  C03B19/066 ,  C03B20/00 ,  C03B2201/24 ,  Y02P40/57 ,  Y10S65/08

Abstract: A number of unique processes are disclosed for manufacture of sintered high-purity quartz glass products in which a shaped silica body or preform is made from an aqueous slurry of micronized silica particles by gel casting, slip casting or electrophoretic deposition. The silica particles may comprise a major portion by weight of crystalline silica. In one embodiment of the invention the sintered quartz glass is transparent, substantially bubble-free and suitable for scientific or optical uses. In another embodiment the porous silica preform is fired in steam to increase the hydroxyl content and then nitrided in a nitrogen-hydrogen reducing atmosphere. A minute amount of chemically-combined nitrogen in the high-purity quartz glass is sufficient to provide a tremendous improvement in physical properties and an incredible increase in the resistance to devitrification.

公开(公告)号：US4207834A

公开(公告)日：1980-06-17

申请号：US951012

申请日：1978-10-13

Applicant: Jean Canteloup ,  Alain M. Mocellin ,  Michel A. Braguier ,  Roger J. Tueta

Inventor： Jean Canteloup ,  Alain M. Mocellin ,  Michel A. Braguier ,  Roger J. Tueta

IPC: B05B7/22 ,  C03B19/10 ,  C03B37/014 ,  C03B37/018 ,  C23C16/507 ,  H05H1/34 ,  B05C5/00

CPC classification number: H05H1/34 ,  B05B7/226 ,  C03B19/106 ,  C03B37/01426 ,  C03B37/01807 ,  C03B37/01823 ,  C03B37/0183 ,  C23C16/507 ,  C03B2201/06 ,  C03B2201/24 ,  C03B2201/42 ,  C03B2207/80 ,  C03B2207/90

Abstract: An apparatus for producing preforms for the production of optical fibers by plasma coating and drawing. A plasma stream produced with the aid of a radio frequency generator is caused to successively pass through three zones in the first of which a mixture of fluidized powders of two materials of appropriate composition is injected and completely vaporized. In the second zone an oxidizing gas having a mixing action is introduced into the deeply cooled stream. The materials and gas react with each other to form microseeds. The powders contain high purity silicon and at least one doping element of the group comprising Al, Ge, B. Ti and Zr. In the third zone an inert gas is introduced and deposition of substance is effected on substrates suitably arranged with respect to the path followed by the plasma stream.

Abstract translation: 一种用于通过等离子体涂覆和拉制生产光纤的预成型件的制造装置。 借助于射频发生器产生的等离子体流被连续地通过三个区域，其中第一个区域注入了两种适当组成的材料的流化粉末混合物并将其完全蒸发。 在第二区域中，将具有混合作用的氧化气体引入深冷流中。 材料和气体相互反应形成微量种子。 粉末含有高纯度硅和至少一种包含Al，Ge，B.Ti和Zr的掺杂元素。 在第三区域中，引入惰性气体，并且在相对于等离子体流的路径适当布置的衬底上实现物质的沉积。

公开(公告)号：US3149946A

公开(公告)日：1964-09-22

申请号：US3906060

申请日：1960-06-27

Applicant: CORNING GLASS WORKS

Inventor： ELMER THOMAS H

IPC: C03B32/00 ,  C03C3/06 ,  C03C23/00

CPC classification number: C03B32/00 ,  C03B2201/24 ,  C03C3/061 ,  C03C23/00

公开(公告)号：US3113008A

公开(公告)日：1963-12-03

申请号：US3874660

申请日：1960-06-27

Applicant: CORNING GLASS WORKS

Inventor： ELMER THOMAS H

IPC: C03B32/00

CPC classification number: C03B32/00 ,  C03B2201/24

公开(公告)号：US20190154911A1

公开(公告)日：2019-05-23

申请号：US16193819

申请日：2018-11-16

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Ming-Jun Li ,  Pushkar Tandon

IPC: G02B6/028 ,  G02B6/036

CPC classification number: G02B6/0281 ,  C03B37/01446 ,  C03B37/01453 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/24 ,  C03B2203/24 ,  C03B2203/26 ,  C03C3/06 ,  C03C13/045 ,  C03C2201/08 ,  C03C2201/11 ,  C03C2201/12 ,  G02B6/03627

Abstract: A co-doped optical fiber is provided having an attenuation of less than about 0.17 dB/km at a wavelength of 1550 nm. The fiber includes a core in the fiber having a graded refractive index profile with an alpha of greater than 5. The fiber also includes a cladding in the fiber that surrounds the core addition, the core includes silica that is co-doped with two or more halogens.

公开(公告)号：US09834468B2

公开(公告)日：2017-12-05

申请号：US14769382

申请日：2014-02-19

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Bodo Kuehn

IPC: F21V9/00 ,  G02B5/02 ,  G02C7/10 ,  G02F1/361 ,  G03B11/00 ,  C03C3/06 ,  C03B19/14 ,  C03B32/00 ,  G02B1/00 ,  G02B1/02 ,  C03B32/02 ,  C03C4/04 ,  C03C15/00

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B32/00 ,  C03B32/02 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/21 ,  C03B2201/23 ,  C03B2201/24 ,  C03C4/04 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2201/24 ,  C03C2203/54 ,  C03C2204/00 ,  G02B1/00 ,  G02B1/02 ,  Y02P40/57

Abstract: An optical component made of synthetic quartz glass includes a glass structure substantially free of oxygen defect sites and having a hydrogen content of 0.1×1016 to 1.0×1018 molecules/cm3, an SiH group content of less than 2×1017 molecules/cm3, a hydroxyl group content of 0.1 to 100 wt. ppm, and an Active temperature of less than 1070° C. The optical component undergoes a laser-induced change in the refractive index in response to irradiation by a radiation with a wavelength of 193 nm using 5×109 pulses with a pulse width of 125 ns and a respective energy density of 500 μJ/cm2 at a pulse repetition frequency of 2000 Hz. The change totals a first measured value M193 nm when measured using the applied wavelength of 193 nm and a second measured value M633 nm when measured using a measured wavelength of 633 nm. The ratio M193 nm/M633 nm is less than 1.7.

公开(公告)号：US09772445B2

公开(公告)日：2017-09-26

申请号：US15091852

申请日：2016-04-06

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

IPC: G02B6/036 ,  G02B6/02 ,  C03B37/027 ,  C03C3/06 ,  C03C3/076 ,  C03C13/04 ,  C03B37/018 ,  C03C25/10 ,  G02B6/028

CPC classification number: G02B6/03694 ,  C03B37/018 ,  C03B37/027 ,  C03B2201/20 ,  C03B2201/24 ,  C03B2201/31 ,  C03B2203/222 ,  C03B2203/23 ,  C03B2203/24 ,  C03C3/06 ,  C03C3/076 ,  C03C13/045 ,  C03C13/046 ,  C03C25/1055 ,  C03C2201/11 ,  C03C2201/24 ,  C03C2201/31 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/03644

Abstract: A single mode optical fiber having a core made from silica and less than or equal to about 11 weight % germania and having a maximum relative refractive index Δ1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index Δ2MIN, a first outer cladding surrounding the inner cladding and a second outer cladding surrounding the first outer cladding. The viscosity at 1650° C. of the second outer cladding minus the viscosity at 1650° C. of the first outer cladding is greater than 0.1e7 Poise, and Δ1MAX>Δ2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The first outer cladding has a maximum relative refractive index Δ3MAX, and Δ3MAX>Δ2MIN.

公开(公告)号：US20170168231A1

公开(公告)日：2017-06-15

申请号：US15444687

申请日：2017-02-28

Applicant: Corning Incorporated

Inventor： George Edward Berkey ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

IPC: G02B6/02 ,  C03C13/04 ,  C03B37/014 ,  G02B6/036 ,  C03B37/018

CPC classification number: G02B6/02014 ,  C03B37/01205 ,  C03B37/01211 ,  C03B37/01262 ,  C03B37/01282 ,  C03B37/01413 ,  C03B37/01433 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/018 ,  C03B37/01815 ,  C03B37/0183 ,  C03B37/01838 ,  C03B37/01853 ,  C03B37/01869 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/24 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/24 ,  C03B2205/42 ,  C03B2207/30 ,  C03C13/045 ,  C03C13/046 ,  C03C25/1061 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2203/54 ,  C03C2213/00 ,  G02B6/02019 ,  G02B6/03627

Abstract: An optical fiber having a core comprising silica and greater than 1.5 wt % chlorine and less than 0.5 wt % F, said core having a refractive index Δ1MAX, and a inner cladding region having refractive index Δ2MIN surrounding the core, where Δ1MAX>Δ2MIN.