Optical signal interleaving comb filter with reduced chromatic dispersion and applications therefor
US6829410B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 1, 2003 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Jul 21, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S372/703
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical signal interleaver/deinterleavers with reduced chromatic dispersion are described. In one embodiment, the interleaver/deinterleavers include two optical filters and an optical isolator coupled to receive the output of each of the optical filters. The optical isolators feed the filtered signals back to the filters. Passing the filtered signals back through the filters in the opposite direction as the first pass allows the filters to cancel, or nearly cancel, the chromatic dispersion caused by the filters on the first pass. Thus, the interleaver/deinterleavers provide reduced chromatic dispersion as compared to use of a single filter or of cascaded filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.