The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2020
Filed:
May. 10, 2018
Yangtze Optical Fibre and Cable Joint Stock Limited Company, Wuhan, Hubei, CN;
YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY, Wuhan, Hubei, CN;
Abstract
A fused-biconical-taper bend-insensitive single mode optical fiber includes a core and a cladding. The core is a fluorine-germanium co-doped silicon-dioxide quartz glass layer, a diameter Dthereof is 7-10 μm, and a relative refractive index difference Δthereof is 0.20% to 0.40%. A range of ΔGe is 0.30% to 0.60%, and a range of ΔF is −0.05% to −0.15%. The cladding includes three layers. A first layer is a fluorine-germanium co-doped silicon-dioxide quartz glass layer, a relative refractive index difference Δthereof is −0.02% to −0.10%, and a diameter Dthereof is 15-30 μm. A second layer is a fluorine-doped silicon-dioxide quartz glass layer, a relative refractive index difference Δthereof is −0.01% to −0.05%, and a diameter Dthereof is 30-50 μm. A third layer is a pure silicon-dioxide quartz glass layer, and a diameter Dthereof is 124-126 μm.