Method and device for chromatic dispersion compensation
US11044019B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2019 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | May 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/25133
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A tunable optical dispersion compensator (TODC) for providing chromatic dispersion (CD) compensation of optical signals in a plurality of optical channels comprises: a plurality of CD compensation fibers; a tunable optical switch configurable for directing an optical signal in any of the plurality of optical channels to one of the plurality of fibers, dependent on a central wavelength of the optical signal; a first switch configurable for directing all signals in the plurality of optical channels to a first CD compensation fiber, in a first mode of operation, and for bypassing the first CD compensation fiber in a second mode of operation; and, the first CD compensation fiber, wherein the first switch and the tunable optical switch are connected so as to enable combining CD compensation provided by the first CD compensation fiber and CD compensation provided by any one of the plurality of CD compensation fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.