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:
Oct. 10, 2023
Filed:
May. 31, 2023
Xinjiang Technical Institute of Physics and Chemistry, Cas, Urumqi, CN;
Linjun Li, Urumqi, CN;
Yuqiang Yang, Urumqi, CN;
Shilie Pan, Urumqi, CN;
Yu Zhou, Urumqi, CN;
Xiaoming Duan, Urumqi, CN;
Yingjie Shen, Urumqi, CN;
Qianqian Hao, Urumqi, CN;
Xin He, Urumqi, CN;
Abstract
A fiber optic sensing head includes a single-mode optical fiber, a twin hole optical fiber including a cladding region and a core region surrounded by the cladding region, and the core region includes a second core located at an axis center, as well as a first and second round holes symmetrically distributed with respect to the second core; an incoming end of a gradient refractive-index fiber is connected to an outgoing end of the twin hole optical fiber with the incoming end of the gradient index fiber aligned with the outgoing end of the single-mode optical fiber at center. A thermal-sensitive structure is filled in a preset length part of the second round hole extending along an axial direction of the twin hole optical fiber. An incoming end of the twin hole optical fiber is connected to an outgoing end of the gradient index optical fiber with displacement.