Dispersion-compensating fiber, and dispersion-compensating module and hybrid optical fiber link using the same
US6587627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Mar 12, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29377
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A dispersion-compensating fiber is provided that can compensate chromatic dispersion of a DSF in the L-band (wavelength of 1.565 &mgr;m to 1.625 &mgr;m). The dispersion-compensating fiber is provided with a central core segment, an intermediate core segment, a ring core segment, and a clad, which are provided in this sequence concentrically from the inside, and has refractive index profile such that the refractive indices of these segments satisfy the relationship of intermediate core segment<clad≦ring core segment<central core segment. When a dispersion-shifted fiber having a zero dispersion wavelength of 1.55 &mgr;m±0.05 &mgr;m has been compensating, the residual chromatic dispersion in all or part of the L-band is within ±1.5 ps/nm/km.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.