Tunable dispersion compensator
US7184665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2002 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Feb 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2519
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A chromatic dispersion compensator in a single-pass and a double-pass version is disclosed. In a single-pass version, the compensator has a diffractive grating for spatially separating an input optical signal into spatially spaced frequency components and a MEMS array of separate phase shifters, each for imparting an independent phase shift to a channel containing a range of the spatially spaced frequency components. In a double-pass version, a retroreflector is disposed to effect a double pass of the light beam through the grating and the phase shifters. The arrangement is effecting in reducing chromatic dispersion of the optical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.