Lei Jiang

US Patent:

6445864, Sep 3, 2002

Filed:

Mar 9, 2001

Appl. No.:

09/802696

Inventors:

Lei Jiang - Plano TX
Gang Qi - Painted Post NY
V. Srikant - Ithaca NY
Jeffery S. Stone - Addison NY
Sergey Y. Ten - Horseheads NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 602

US Classification:

385127

Abstract:

Disclosed is a dispersion compensating optical fiber that includes a core surrounded by a cladding layer of refractive index. The core includes at least three radially adjacent regions, a central core region having 1, a moat region having a refractive index 2 and an annular ring region having a refractive index 3, such that 1 3 c 2. The fiber exhibits a dispersion slope which is less than -1. 0 ps/nm /km over the wavelength range 1525 to 1565, a dispersion at 1550 which is less than -30 ps/mn/km, and a value obtained by dividing the dispersion value by the dispersion slope which is greater than 35 and preferably between 40 and 100.

US Patent:

6546178, Apr 8, 2003

Filed:

Apr 11, 2002

Appl. No.:

10/122250

Inventors:

Lei Jiang - Plano TX
Gang Qi - Painted Post NY
V. Srikant - Ithaca NY
Jeffery S. Stone - Addison NY
Sergey Y. Ten - Horseheads NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 622

US Classification:

385127

Abstract:

Disclosed is a dispersion compensating optical fiber that includes a core surrounded by a cladding layer of refractive index. The core includes at least three radially adjacent regions, a central core region having a moat region having a refractive index and an annular ring region having a refractive index such that c The fiber exhibits a dispersion at 1550 which is less than -30 ps/nm/km, and a value obtained by dividing the dispersion value by the dispersion slope which is between 40 and 100.

US Patent:

6731848, May 4, 2004

Filed:

Feb 14, 2003

Appl. No.:

10/366915

Inventors:

Lei Jiang - Plano TX
Gang Qi - Painted Post NY
V. Srikant - Ithaca NY
Jeffery S. Stone - Addison NY
Sergey Y. Ten - Horseheads NY

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 622

US Classification:

385127

Abstract:

Disclosed is a dispersion compensating optical fiber that includes a refractive index profile selected to provide dispersion at 1550 nm of between -90 and -150 ps/nm/km; dispersion slope at 1550 nm of less than -1. 5 ps/nm /km; and kappa of between 40 and 95. The profile preferably has a core surrounded by a cladding layer of refractive index , and at least three radially adjacent regions including a central core region having 1, a moat region having a refractive index 2, and an annular ring region having a refractive index 3, wherein 1 3 c 2.