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US 9,599,769 B2Granted
Hydrogen-resistant optical fiber
AssigneeVerrillon, Inc.
InventorsWilliam Jacobsen, Abdelouahed Soufiane
Life of this patent
Estimating the term…
Abstract
Embodiments of the invention relate to a hydrogen-resistant optical fiber with a core having a central axis. The core may include only silica, or only silica and fluorine, while a cladding region surrounding the core may be made of silica and fluorine, along with at least one of germanium, phosphorus, and titanium.
Claims22
A hydrogen-resistant, graded-index optical fiber comprising:
- a core having a central axis, the core consisting essentially of silica and fluorine, wherein a concentration of fluorine within the core increases as a radial distance from the central axis increases;
- and
- a cladding region surrounding the core, the cladding region comprising an inner cladding region (i) comprising silica, fluorine, and at least one of germanium, phosphorus, and titanium, and (ii) having a refractive index lower than a refractive index of the core,
- wherein a concentration of fluorine and at least one of germanium, phosphorus, and titanium in the inner cladding region varies substantially across the inner cladding region.
1 more element
A hydrogen-resistant, graded-index optical fiber comprising:
- a core having a central axis, the core consisting essentially of silica and fluorine, wherein a concentration of fluorine within the core increases as a radial distance from the central axis increases;
- and
- a cladding region surrounding the core, the cladding region comprising an inner cladding region (i) comprising silica, fluorine, and at least one of germanium, phosphorus, and titanium, and (ii) having a refractive index lower than a refractive index of the core,
- wherein a concentration of fluorine and at least one of germanium, phosphorus, and titanium in the inner cladding region is substantially constant across the inner cladding region.
1 more element
A hydrogen-resistant, graded-index optical fiber comprising:
- a core having a central axis, the core consisting essentially of silica and fluorine, wherein a concentration of fluorine within the core increases as a radial distance from the central axis increases;
- and
- a cladding region surrounding the core, the cladding region comprising an outer cladding region comprising silica, fluorine, and at least one of germanium, phosphorus, and titanium.
Dependencies are inferred from the claim text.