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:
Mar. 29, 2016
Filed:
Nov. 21, 2014
Everpro Technologies Company Ltd., Wuhan, Hubei, CN;
Song Wang, Hubei, CN;
Zhipan Zhou, Hubei, CN;
Yongtao Liu, Hubei, CN;
Jin Xu, Hubei, CN;
Mingfeng Fan, Hubei, CN;
Shuqiang Zhang, Hubei, CN;
Wei Wang, Hubei, CN;
EVERPRO TECHNOLOGIES COMPANY LTD., Wuhan, Hubei, CN;
Abstract
A graded refractive index bending-resistant multimode optical fiber includes a core layer and claddings. The core layer has a radius in a range of 20-50 μm; refractive indexes being a graded refractive index distribution with a distribution exponent α in a range of 1.89-1.97; and a maximum relative refractive index difference (RRID) Δ1% max in a range of 0.9%-2.72%. The claddings has an inner cladding surrounding the core layer, an intermediate cladding surrounding the inner cladding and an outer cladding surrounding the inner cladding. The inner cladding has a radius in a range of 22-57 μm, and an RRID Δ2% in a range of −0.02%-0.02%. The intermediate cladding is a pure quartz glass layer, and has a radius in a range of 32-60 μm, and an RRID Δ3% in a range of −0.01%-0.01%.