Optical fiber and method of manufacturing the same
US10067287B2 · kind B2 · utility
2Cited by
12References
9Claims
0Family size
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Key dates
| Filing date | Sep 24, 2015 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Sep 24, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2203/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber includes a core and a cladding surrounding an outer periphery of the core and has a refractive index profile in which a relative refractive index difference with respect to a distance r from a center of the core is represented by Δ(r), where a value of A represented by A=−∫00.22MFD(Δ(r)−Δref(r))dr+∫0.22MFD0.44MFD(Δ(r)−Δref(r))dr (Formula 1) is 0.3%·μm or less, where a unit of r is μm, a unit of a relative refractive index difference Δ(r) is %, Δref(r)=−0.064r+0.494, and MFD1.31 is a mode field diameter at a wavelength of 1.31 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.