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:
Jan. 23, 2018
Filed:
Mar. 02, 2017
Yangtze Optical Fibre and Cable Joint Stock Limited Company, Wuhan, Hubei, CN;
Shengya Long, Hubei, CN;
Lei Zhang, Hubei, CN;
Jihong Zhu, Hubei, CN;
Jun Wu, Hubei, CN;
Ruichun Wang, Hubei, CN;
YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY, Wuhan, Hubei, CN;
Abstract
A single-mode fiber with an ultra-low attenuation and a large effective area includes a core layer having a radius of 4.8 to 6.5 and a relative refractive index difference Δnof −0.06% to 0.10%, and cladding layers. The cladding layers includes an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary cladding layer. The inner cladding layer has a radius of 9 to 15 μm and a relative refractive index difference of −0.40% to −0.15%. The trench cladding layer has a radius of 12 to 17 μm and a relative refractive index difference of −0.8% to −0.3%. The auxiliary outer cladding layer has a radius of 37 to 50 μm and a relative refractive index difference of −0.6% to −0.25%. The outer cladding layer is a pure-silicon-dioxide glass layer.