Dispersion shifted optical fiber having triple clad
US6516125B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2000 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Aug 17, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/03638
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is related to a dispersion-shifted optical fiber for use in a wavelength division multiplexing system, which comprises a core, an inner clad, and a silica clad, wherein the optical fiber has a relatively low dispersion at a wavelength of 1550 nm, an effective area of 60 &mgr;m2 and small bending loss. The core consists of a first and a second core, wherein the core has a refractive index distribution. The inner clad consists of a first inner clad having a refractive index smaller than that of the second core and a second inner clad having a refractive index smaller than that of the second inner clad. A silica clad surrounds the inner clad and has a refractive index smaller than that of the second inner clad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.