Dispersion compensating optical fiber

US6445864B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Lei Jiang · Longbeilingcun, CN
• Gang Qi · Corning, US
• V. Srikant · Ithaca, US
• Jeffery Scott Stone · Addison, US
• Sergey Ten · Corning, US

Key dates

• Filing date: Mar 9, 2001
• Grant date: Sep 3, 2002
• Expiry date: Mar 9, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/03611
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Disclosed is a dispersion compensating optical fiber that includes a core surrounded by a cladding layer of refractive index &Dgr;c. The core includes at least three radially adjacent regions, a central core region having &Dgr;1, a moat region having a refractive index &Dgr;2 and an annular ring region having a refractive index &Dgr;3, such that &Dgr;1>&Dgr;3>&Dgr;c>&Dgr;2. The fiber exhibits a dispersion slope which is less than −1.0 ps/nm2/km over the wavelength range 1525 to 1565, a dispersion at 1550 which is less than −30 ps/mn/km, and a &kgr; value obtained by dividing the dispersion value by the dispersion slope which is greater than 35 and preferably between 40 and 100.