公开(公告)号：AU693329B2

公开(公告)日：1998-06-25

申请号：AU5046196

申请日：1996-04-03

Applicant: CORNING INC

Inventor： BERKEY GEORGE E ,  BHAGAVATULA VENKATA A ,  JONES PETER C ,  KECK DONALD B ,  LIU YANMING ,  MODAVIS ROBERT A ,  MORROW ALAN J ,  NEWHOUSE MARK A ,  NOLAN DANIEL A

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03B37/02 ,  C03B37/027 ,  G02B6/02 ,  G02B6/028 ,  G02B6/036 ,  G02B6/18

Abstract: A single-mode optical waveguide fiber designed to limit power penalty due to four wave mixing and a method of making the waveguide is disclosed. Variations in properties, e.g., radius or refractive index, of the waveguide fiber core provide a total dispersion which varies along the length of the waveguide. The algebraic sum of products of length times total dispersion is controlled to a pre-selected value for each waveguide fiber which makes up a system link. Proper choice of total dispersion variation magnitude and sub-length results in a system link wherein a signal travels only short distances in waveguide portions having total dispersion near zero. However, the variation of the total dispersion provides a system link which has a pre-selected dispersive effect on the signal over a selected wavelength range. The dispersive effect on the signal can be chosen to be essentially zero. A number of techniques for fabricating DM fiber are also disclosed.

公开(公告)号：CA2084216A1

公开(公告)日：1993-08-22

申请号：CA2084216

申请日：1992-12-01

Applicant: CORNING INC

Inventor： BERKEY GEORGE E

IPC: C03B37/014 ,  C03C13/04 ,  B01J15/00 ,  C03B37/027 ,  C03C17/06

Abstract: Disclosed is a method of forming a doped glass article. Heated glass particles are deposited on a mandrel where they adhere together to form a porous glass preform having interconnective pores. The mandrel is removed to form a tubular preform having an axial aperture. The preform is suspended in a consolidation furnace by a gas conducting handle having a dopant containing chamber. As the handle and preform are heated, there is flowed through the chamber a gas that reacts with the heated dopant to form a reactant gas that flows into the aperture and into pores, whereby a dopant is incorporated into the porous glass preform. The doped preform is heat treated to consolidate it into an elongated non-porous glass body containing the dopant. The glass body can be provided with cladding glass and drawn into an optical fiber.

公开(公告)号：CA2026715A1

公开(公告)日：1991-06-09

申请号：CA2026715

申请日：1990-10-02

Applicant: CORNING INC

Inventor： BERKEY GEORGE E

IPC: G02B6/28

Abstract: A fiber optic coupler of the type wherein first and second single-mode optical fibers, each having a core and a cladding, are fused together along a portion of the lengths thereof to form a coupling region. The fiber diameters are smaller in the coupling region than in the the remainder of the fibers. The cladding of the second fiber contains an amount of chlorine sufficient to increase the refractive index n'_2 thereof to a value greater than the refractive index n2 of the cladding of the first fiber.

公开(公告)号：CA2431551C

公开(公告)日：2010-03-30

申请号：CA2431551

申请日：2001-11-29

Applicant: CORNING INC

Inventor： BERKEY GEORGE E ,  MA DAIPING ,  MISHRA SNIGDHARAJ K

IPC: G02B6/02 ,  C03C13/04 ,  C03C25/10 ,  G02B6/028 ,  G02B6/036

Abstract: An optical waveguide fiber having a relatively large effective area which exhibits low attenuation, low PMD and low microbending sensitivity. A step-index refractive index profile is advantageously used.

公开(公告)号：DE60137119D1

公开(公告)日：2009-02-05

申请号：DE60137119

申请日：2001-02-21

Applicant: CORNING INC

Inventor： BERKEY GEORGE E ,  BICKHAM SCOTT R ,  CAIN MICHAEL B ,  HAJCAK PAMELA A ,  MANYAM UPENDRA H ,  MISHRA SNIGDHARAJ K ,  SRIKANT V

IPC: G02B6/02 ,  G02B6/036 ,  H04B10/02 ,  H04B10/18 ,  H04B10/43

Abstract: Disclosed is a dispersion compensating and dispersion slope compensating single mode optical waveguide fiber. The refractive index profiles of waveguide fibers in accord with the invention are disclosed and described. These index profiles provide a waveguide fiber having negative total dispersion and negative total dispersion slope so that a standard waveguide fiber is compensated over an extended wavelength range. A telecommunications link using the fiber in accord with the invention is also disclosed and described. A standard fiber to compensating fiber length ratio in the range of 1:1 to 3:1 is shown to give optimum link performance with respect to limiting non-linear dispersion effects.

公开(公告)号：AU2003284095A1

公开(公告)日：2004-05-04

申请号：AU2003284095

申请日：2003-10-10

Applicant: CORNING INC

Inventor： LI MING-JUN ,  NOLAN DANIEL A ,  BERKEY GEORGE E

IPC: G02B6/02 ,  H04B10/18

公开(公告)号：AU2003257186A8

公开(公告)日：2004-03-19

申请号：AU2003257186

申请日：2003-08-05

Applicant: CORNING INC

Inventor： HAWTOF DANIEL W ,  TRUESDALE CARLTON M ,  GALLAGHER MICHAEL T ,  BERKEY GEORGE E ,  VENKATARAMAN NATESAN

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/016 ,  G02B6/02 ,  G02B6/10 ,  C03B19/12 ,  G02B6/12 ,  G02B6/16

Abstract: The present invention provides methods for fabricating optical fiber preforms and optical fibers. According to one embodiment of the invention, a method for making an optical fiber preform includes the steps of providing at least one sacrificial rod having an outside surface; forming a material on the outside surface of each sacrificial rod to yield a structured body, the structured body including a structured material in substantial contact with the at least one sacrificial rod; removing each sacrificial rod from the structured body; and including the structured body in the optical fiber preform. The preform may be drawn into an optical fiber. The methods of the present invention are especially useful in the fabrication of microstructured optical fibers.

公开(公告)号：CA2431551A1

公开(公告)日：2002-06-20

申请号：CA2431551

申请日：2001-11-29

Applicant: CORNING INC

Inventor： MISHRA SNIGDARAJ K ,  BERKEY GEORGE E ,  MA DAIPING ,  FREITAG KARL P

IPC: C03C13/04 ,  C03C25/10 ,  G02B6/02 ,  G02B6/028 ,  G02B6/036 ,  G02B6/16

Abstract: An optical waveguide fiber having a relatively large effective area which exhibits low attenuation, low PMD and low microbending sensitivity. A step- index refractive index profile is advantageously used.

公开(公告)号：AU7002201A

公开(公告)日：2002-03-04

申请号：AU7002201

申请日：2001-06-21

Applicant: CORNING INC

Inventor： BERKEY GEORGE E ,  FAJARDO JAMES C ,  FARWELL SELINA G ,  GALLAGHER MICHAEL T ,  HACKERT MICHAEL J ,  HAWTOF DANIEL W ,  NOLAN DANIEL A ,  WIGLEY PETER G

IPC: C03B37/012 ,  C03B37/027 ,  C03B37/028 ,  C03B37/075 ,  G02B6/02 ,  G02B6/34 ,  G02B6/26 ,  C03B37/15 ,  G02B6/44

公开(公告)号：AU2814501A

公开(公告)日：2001-07-19

申请号：AU2814501

申请日：2001-03-21

Applicant: CORNING INC

Inventor： BERKEY GEORGE E

IPC: C03B37/018 ,  C03B37/027 ,  G02B6/16