公开(公告)号：AU3090601A

公开(公告)日：2001-09-17

申请号：AU3090601

申请日：2001-01-11

Applicant: CORNING INC

Inventor： HAWTOF DANIEL W ,  WHALEN JOSEPH M

IPC: C03B19/01 ,  C03B19/06 ,  C03B19/10 ,  C03B19/14 ,  C03B37/018 ,  C03B37/075 ,  C03C13/00 ,  G02B6/00

公开(公告)号：AU7824100A

公开(公告)日：2001-01-30

申请号：AU7824100

申请日：2000-06-16

Applicant: CORNING INC

Inventor： BENNETT RANDY L ,  FANNING ROBERT A ,  HAWTOF DANIEL W ,  WANG JI

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03B37/027 ,  C03B37/00

公开(公告)号：AU6888100A

公开(公告)日：2000-11-10

申请号：AU6888100

申请日：2000-04-17

Applicant: CORNING INC

Inventor： ALLEN MARTIN W ,  BOOKBINDER DANA C ,  CHOWDHURY DIPAKBIN Q ,  HAWTOF DANIEL W ,  POWERS DALE R

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03B37/027 ,  C03B37/00

Abstract: A method of fabricating an optical waveguide fiber that includes the steps of providing a cylindrical glass optical fiber preform having a longitudinally extending centerline hole, and closing the hole under conditions suitable to result in uniform and symmetric hole closure. The method may include first plugging a first end and a second end of the centerline hole to prevent gas flow therethrough. The method preferably involves closing the centerline hole of the preform by drawing the preform down into an optical waveguide fiber.

公开(公告)号：CA2371250A1

公开(公告)日：2000-11-02

申请号：CA2371250

申请日：2000-04-17

Applicant: CORNING INC

Inventor： CHOWDHURY DIPAKBIN Q ,  BOOKBINDER DANA C ,  HAWTOF DANIEL W ,  POWERS DALE R ,  ALLEN MARTIN W

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03B37/027 ,  G02B6/16

Abstract: A method of fabricating an optical waveguide fiber that includes the steps o f providing a cylindrical glass optical fiber preform having a longitudinally extending centerline hole, and closing the hole under conditions suitable to result in uniform and symmetric hole closure. The method may include first plugging a first end and a second end of the centerline hole to prevent gas flow therethrough. The method preferably involves closing the centerline hol e of the preform by drawing the preform down into an optical waveguide fiber. An optical fiber produced by the method has a polarization mode dispersion (PMD ) of

公开(公告)号：CA2371249A1

公开(公告)日：2000-11-02

申请号：CA2371249

申请日：2000-04-07

Applicant: CORNING INC

Inventor： SIRKANT V ,  HAWTOF DANIEL W ,  BERKEY GEORGE E ,  POWERS DALE R ,  BOOKBINDER DANA C ,  GIROUX CYNTHIA B ,  FIACCO RICHARD M

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03C13/04 ,  G02B6/02 ,  C03B37/018 ,  G02B6/16

Abstract: A cylindrical glass body having a low water content centerline region and method of manufacturing such a cylindrical glass body for use in the manufacture of optical waveguide fiber is disclosed. The centerline region o f the cylindrical glass body has a water content sufficiently low such that an optical waveguide fiber made from the cylindrical glass body of the present invention exhibits an optical attenuation of less than about 0.35 dB/km, and preferably less than about 0.31 dB/km at a measured wavelength of 1380nm. A low water content plug (46, 54) used in the manufacture of such a cylindrica l glass body, an optical waveguide fiber having a low water peak, and an optic al fiber communication system incorporating such an optical waveguide fiber is also disclosed.

公开(公告)号：CA2355941A1

公开(公告)日：2000-06-22

申请号：CA2355941

申请日：1999-12-01

Applicant: CORNING INC

Inventor： STONE JOHN III ,  KIEFER WILLIAM J ,  WIGHT JOHN F JR ,  HAWTOF DANIEL W ,  DAWSON-ELLI DAVID F ,  FU XIAODONG

IPC: F23D14/14 ,  C03B19/06 ,  C03B19/14 ,  C03B23/047 ,  C03B37/014 ,  C23C16/453 ,  C23C16/455 ,  F23D14/22 ,  F23D14/52 ,  F23D14/56 ,  F23D14/58

Abstract: A burner manifold apparatus (10) for delivering reactants to a combustion si te of a chemical vapor deposition process includes fluid inlets (32a, 32b), flu id outlets (49), and a plurality of fluid passages (50) extending therebetween. The fluid passages (50) converge toward each other from the fluid inlets to the fluid outlets. One embodiment includes a manifold base (12), a pressure plate (14), and a manifold burner mount (16) for mounting thereto a micromachined burner (58). The fluid passages (50) internal to the manifold base are configured to distribute symmetrically the fluid to the manifold burner mount. The fluid is then channeled through fluid passages in the manifold burner mount. The fluid passages converge, yet remain fluidly isolated from each other, and the fluid passages create a linear array for producing linear streams of fluid. Alternatively, the burner manifold apparatus may include a plurality of manifold elements in a stacked arrangement. In this alternative embodiment, the manifold elements are configured to produce a linear array of fluid passages at the top of the stack, increasing the number of fluid passages at each level of the stack closer to the top. As yet a further alternative, the burner manifold may be produced by extruding a particulate composite through adie to produce a manifold having fluid passages therein. This extruded manifold generally has a tapered section to which a burner may be mounted.

公开(公告)号：CA2309136A1

公开(公告)日：1999-07-01

申请号：CA2309136

申请日：1998-12-03

Applicant: CORNING INC

Inventor： HAWTOF DANIEL W

IPC: F23D14/14 ,  C01B13/20 ,  C01B33/18 ,  C03B8/04 ,  C03B19/14 ,  C03B37/014 ,  F23D14/56 ,  F23D14/58 ,  F23D99/00 ,  H04R29/00 ,  C03B37/018

Abstract: 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.

公开(公告)号：AU8293098A

公开(公告)日：1999-02-22

申请号：AU8293098

申请日：1998-07-07

Applicant: CORNING INC

Inventor： BLACKWELL JEFFERY L ,  FU XIAODONG ,  HAWTOF DANIEL W ,  POWERS DALE R

IPC: B01J19/26 ,  C01B33/18 ,  C03B8/04 ,  C03B19/10 ,  C03B19/14 ,  C03B20/00 ,  C03B37/014 ,  C03B37/018 ,  C03C1/00 ,  C03C3/06

Abstract: The present invention is directed to a method for making silica. A liquid, preferably halide-free, silicon-containing compound capable of being converted by thermal oxidative decomposition to SiO2 is provided and introduced directly into the flame of a combustion burner, which converts the compound to silica, thereby forming finely divided amorphous soot. The soot is vaporized at the site where the liquid is converted into silica by pneumatically atomizing the liquid with a stream of oxygen gas, or a mixture of oxygen gas and nitrogen gas. The amorphous soot is deposited on a receptor surface where, either substantially simultaneously with or subsequently to its deposition, the soot is consolidated into a body of fused silica glass.

公开(公告)号：EP1989151A4

公开(公告)日：2011-07-06

申请号：EP07751302

申请日：2007-02-20

Applicant: CORNING INC

Inventor： GALLAGHER MICHAEL T ,  HAWTOF DANIEL W ,  MCCARTHY JOSEPH E ,  VENKATARAMAN NATESAN

IPC: C03B37/07

CPC classification number: C03B37/02781 ,  C03B2203/42 ,  C03B2205/10

公开(公告)号：EP1444171A4

公开(公告)日：2008-10-29

申请号：EP02766360

申请日：2002-09-24

Applicant: CORNING INC

Inventor： DAWES STEVEN B ,  HAWTOF DANIEL W ,  MURTAGH MICHAEL T ,  ROSETTIE JOHN S ,  SCHERMERHORN ANDREW P ,  SPROUL MERRILL F ,  STONE JOHN III ,  TANDON PUSHKAR

IPC: C03B37/014 ,  C03B37/018 ,  C03B37/012

CPC classification number: C03B37/01446 ,  C03B37/0146 ,  C03B2201/12 ,  C03B2201/20

Abstract: 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.