Bulk optical interferometer
US6785000B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Aug 29, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29347
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to an optical interferometer based on a Mach-Zehnder interferometer that can be used as an optical channel interleaver in wavelength division multiplexed (WDM) and dense wavelength division multiplexed (DWDM) optical networks. Optical channel interleavers/de-interleavers combine sets of WDM and DWDM channels for transmission over a network and/or separate WDM and DWDM signals into sets of channels with more convenient channel spacing for further de-multiplexing. The interferometer according to the present invention utilizes a ring resonator in each arm thereof as a phase shifter to provide a flat-top wavelength response with wide pass-bands and stop-bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.