Dispersion-flattened single-mode optical waveguide with large effective mode surface area
US5675690A · kind A · utility
30Cited by
2References
2Claims
0Family size
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Key dates
| Filing date | Jul 3, 1996 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Jul 3, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0286
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A single-mode optical waveguide comprises an optical core and a cladding surrounding the optical core having a predetermined refractive index. The core comprises a central area that has a refractive index lower than the predetermined refractive index and annular area around the central area that has a refractive index higher than the predetermined refractive index. Between the peripheral annular area and the cladding is at least one composite annular area made up of two successive annular areas respectively having refractive indices lower than and higher than the predetermined refractive index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.