Single mode optical waveguide fiber with reduced dispersion
US6434310B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Oct 9, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0281
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A single mode optical waveguide fiber having a relatively large effective area and low dispersion includes a segmented core having at least two segments each defining a radius, a refractive index profile and a relative refractive index percent. The waveguide fiber also includes a clad layer surrounding and in contact with the core and having a relative refractive index. The refractive index profiles are selected to provide total dispersion at a wavelength of about 1550 nm of within the range of about 11 ps/nm-km to about 14 ps/nm-km, and total dispersion slope at a wavelength of about 1550 nm of within the range of about 0.045 ps/nm2-km to about 0.055 ps/nm2-km. The refractive index profiles are further selected to provide an effective area greater than or equal to 60 &mgr;m2, and attenuation at a wavelength of about 1550 nm of less than or equal to 0.22 dB/km.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.