MEMS-based polarization mode dispersion compensator
US6483957B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2001 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | May 27, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2569
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A polarization mode separator separates the optical signal into a first polarized signal and a second differently polarized signal traveling along respective first and second paths. A first variable delay generator located along the first path is adapted to selectively provide a first propagation delay to the first polarized signal. The first variable delay generator includes at least two rotating micro-mirrors and one or more fixed mirrors constructed on a surface of a substrate. A controller is coupled to the first variable delay generator. The controller is adapted to monitor the polarization mode dispersion in the optical signal and to position the rotating micro-mirrors to direct the first polarized signal along one of the plurality of optical paths. A beam combiner combines the first and second signals to form an optical output signal substantially compensated for polarization mode dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.