公开(公告)号：ZA200100471B

公开(公告)日：2001-08-20

申请号：ZA200100471

申请日：2001-01-17

Applicant: CORNING INC

Inventor： DAIPING MA ,  SMITH DAVID K

IPC: C03B20060101 ,  C03C20060101 ,  G02B20060101 ,  C03B ,  G02B

公开(公告)号：AU7333900A

公开(公告)日：2001-04-30

申请号：AU7333900

申请日：2000-08-25

Applicant: CORNING INC

Inventor： SMITH DAVID K

IPC: G02B6/02 ,  G02B6/036

Abstract: Disclosed is a single mode optical waveguide having a core refractive index profile defined by upper and lower boundary profiles on a chart of relative index percent versus radius. The relative refractive index as a function of radial dimensions of the core are selected to provide an optical waveguide fiber having properties suitable for a high performance telecommunication system operating in the wavelength window of about 1530 nm to 1625 nm. Refractive index profile designs encompassing the wavelength window 1250 nm to 1350 nm are also disclosed. The embodiments of the core waveguide have exceptionally low total dispersion slope and attenuation over these wavelength windows.

公开(公告)号：BR9706558A

公开(公告)日：1999-07-20

申请号：BR9706558

申请日：1997-06-27

Applicant: CORNING INC

Inventor： MURPHY JAMES P ,  SMITH DAVID K

IPC: G02B6/036 ,  C03C13/04 ,  G02B6/00 ,  G02B6/22

Abstract: Improved optical waveguide fiber 1 comprise of a central core 10 region surrounded by an inner clad region 12. The second annular region 14 is doped with tantalum. The core 10 is doped with germanium. The first annular region 20 of the inner clad is undoped. The optical fiber 1 has a depressed, annular region 20 located between two adjacent regions of relatively high indexes of refraction. The index of refraction of both adjoining regions 10, 20 is greater than the central region 20.

公开(公告)号：AU1093399A

公开(公告)日：1999-06-07

申请号：AU1093399

申请日：1998-10-15

Applicant: CORNING INC

Inventor： LI MING-JUN ,  MA DAIPING ,  SMITH DAVID K ,  LIU YANMING

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/22 ,  G02B6/16

Abstract: Disclosed is a single made optical waveguide fiber having a segmented core design. In particular, the core comprises three segments, each having characteristic dimensions and refractive index profile. By proper choice of index profile in each segment, a waveguide fiber is made which has a mode field diameter of about 9.5, low, positive total dispersion over the operating window 1530 nm to 1565 nm as well as effective area greater than 60 mum 2 .

公开(公告)号：CA2239735A1

公开(公告)日：1998-12-23

申请号：CA2239735

申请日：1998-06-05

Applicant: CORNING INC

Inventor： SMITH DAVID K

IPC: G02B6/028 ,  G02B6/036 ,  G02B6/18 ,  H04J14/02 ,  H04B10/18

Abstract: Disclosed is a single mode optical waveguide fiber designed for use in high performance telecommunication systems. The novel core profile design improves bending performance to provide enhanced resistance to adverse environments. Total dispersion over an extended wavelength window is maintained low by placing the zero dispersion wavelength above the upper limit of the operating window. In addition, cut off wavelength is increased to just below the operating window. Ease of manufacture is retained as is very low waveguide attenuation.

公开(公告)号：PL325278A1

公开(公告)日：1998-07-20

申请号：PL32527897

申请日：1997-06-27

Applicant: CORNING INC

Inventor： MURPHY JAMES P ,  SMITH DAVID K

IPC: G02B6/036 ,  C03C13/04 ,  G02B6/00 ,  G02B6/22

Abstract: Improved optical waveguide fiber 1 comprise of a central core 10 region surrounded by an inner clad region 12. The second annular region 14 is doped with tantalum. The core 10 is doped with germanium. The first annular region 20 of the inner clad is undoped. The optical fiber 1 has a depressed, annular region 20 located between two adjacent regions of relatively high indexes of refraction. The index of refraction of both adjoining regions 10, 20 is greater than the central region 20.

公开(公告)号：CA2385052C

公开(公告)日：2008-08-12

申请号：CA2385052

申请日：2000-08-25

Applicant: CORNING INC

Inventor： SMITH DAVID K

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/028

Abstract: Disclosed is a single mode optical waveguide having a core refractive index profile defined by upper and lower boundary profiles on a chart of relative index percent versus radius. The relative refractive index as a function of radial dimensions of the core are selected to provide an optical waveguide fiber having properties suitable for a high performance telecommunication system operating in the wavelength window of about 1530 nm to 1625 nm. Refractive index profile designs encompassing the wavelength window 1250 nm to 1350 nm are also disclosed. The embodiments of the core waveguide have exceptionally low total dispersion slope and attenuation over these wavelength windows.

公开(公告)号：AU2003279172A1

公开(公告)日：2004-05-04

申请号：AU2003279172

申请日：2003-10-06

Applicant: CORNING INC

Inventor： BICKHAM SCOTT R ,  QI GANG ,  SMITH DAVID K ,  WOOD WILLIAM A

IPC: G02B6/22 ,  G02B6/18

Abstract: A optical fiber, for example a Dispersion Compensation (DC) fiber, for compensating dispersion of a transmission fiber (such as a NZDSF) and transmission line including same. The fiber has a refractive index profile having a first moat with a negative delta (Delta2), and a second moat with a negative delta (Delta4) wherein the fiber exhibits a negative total dispersion at 1550 nm, and kappa at 1550 nm of less than 75 nm. The DC fiber, when used in a transmission line, may provide low residual dispersion across the C band when such lines include transmission fibers with total dispersion between 2 and 6 ps/nm/km and dispersion slope less than 0.092 ps/nm /km at 1550 nm.

公开(公告)号：AU736285B2

公开(公告)日：2001-07-26

申请号：AU1093399

申请日：1998-10-15

Applicant: CORNING INC

Inventor： LI MING-JUN ,  MA DAIPING ,  SMITH DAVID K ,  LIU YANMING

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/22 ,  G02B6/16

Abstract: Disclosed is a single made optical waveguide fiber having a segmented core design. In particular, the core comprises three segments, each having characteristic dimensions and refractive index profile. By proper choice of index profile in each segment, a waveguide fiber is made which has a mode field diameter of about 9.5, low, positive total dispersion over the operating window 1530 nm to 1565 nm as well as effective area greater than 60 mum 2 .

公开(公告)号：CA2380720A1

公开(公告)日：2001-02-15

申请号：CA2380720

申请日：2000-06-20

Applicant: CORNING INC

Inventor： MITCHELL BRIAN E ,  SMITH DAVID K

IPC: G02B6/036 ,  G02B6/22

Abstract: The invention is directed to a single mode optical waveguide fiber profile (18, 20, 22, 24) that provides relatively large effective area while limitin g macrobend loss. The large effective area results from configuring the core o f the waveguide fiber to shift propagated light power away from the waveguide center. Macrobend loss, as measured by pin array or 20 mm mandrel testing, i s maintained low by means of a power-limiting index depression (24) surroundin g the central core region of the waveguide. In addition, low attenuation is achieved and cut off wavelength is controlled to provide a telecommunication s operating window in the wavelength range of about 1250 nm to 1700 nm.