Optical fiber and manufacturing method thereof
US9739935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2016 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Mar 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02009
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber includes a core, and a clad surrounding an outer circumference of the core, in which a first relative refractive index difference Δ1a is greater than 0, a second relative refractive index difference Δ1b is greater than 0, the first relative refractive index difference Δ1a is greater than the second relative refractive index difference Δ1b, the first relative refractive index difference Δ1a and the second relative refractive index difference Δ1b satisfy a relationship denoted by the following expression: 0.20≦(Δ1a−Δ1b)/Δ1a≦0.88, and a refractive index profile Δ of the core in an entire region of a section of 0≦r≦r1 as a function Δ(r) of a distance r from a center of the core in the radial direction is denoted by the following expression: Δ(r)=Δ1a−(Δ1a−Δ1b)r/r1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.