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:
Dec. 20, 2022
Filed:
Apr. 30, 2020
Ningbo University, Ningbo, CN;
Xunsi Wang, Ningbo, CN;
Youren Dong, Ningbo, CN;
Shixun Dai, Ningbo, CN;
Qiuhua Nie, Ningbo, CN;
Xiange Wang, Ningbo, CN;
Minghui Zhong, Ningbo, CN;
Rongping Wang, Ningbo, CN;
Xiang Shen, Ningbo, CN;
Zijun Liu, Ningbo, CN;
Yongxing Liu, Ningbo, CN;
Ningbo University, Ningbo, CN;
Abstract
A method for preparing all-solid-state photonic crystal fiber preform by extrusion by aligning the center of the first jacking end of the first jacking rod with the center of the core outlet mold. The adverse effect on this part of extruded core glass by oxygen or other impurities in air during the extrusion out of the core outlets can be avoided. The defects on the core glass surface and the cladding glass surface can be effectively removed, and the purity and quality of the core component in the obtained fiber preform can be improved.