Tunable optical filters with multiple ports
US8577192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Apr 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/356
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Described are tunable multiport optical filters that filter systems with many optical channels in a convenient and cost-effective manner. The tunable multiport optical filters of the invention are simple in design and have few optical components. The basic elements are a dispersion element and a rotating mirror. With properly arranged arrays of input and output optical fibers, individual wavelength components from a selected input beam are spatially separated and steered by the rotating mirror to selected output locations. The optical properties from the selected components may be measured by one or more photodetectors. The filters are also useful for selecting and routing optical signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.