Multiplexer-demultiplexer using an elliptical concave grating and produced in integrated optics
US4786133A · kind A · utility
81Cited by
3References
1Claims
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Key dates
| Filing date | Dec 18, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Dec 18, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2938
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The device comprises microguides (G1, G2, . . . GN) traversed by light beams with N different wavelengths, a diffraction grating (R) formed by reflecting elliptical facets and a single microguide (G). Point (S) of the end of the single microguide (G) and points (P1, . . . PN) of the ends of microguides (G1, . . . GN) are optically joined by the grating for different wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.