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:
Nov. 23, 2021
Filed:
Oct. 27, 2016
Tianjin University, Tianjin, CN;
Junfeng Jiang, Tianjin, CN;
Tiegen Liu, Tianjin, CN;
Jinling Yan, Tianjin, CN;
Kun Liu, Tianjin, CN;
Shuang Wang, Tianjin, CN;
Xuezhi Zhang, Tianjin, CN;
Chuanjun Zang, Tianjin, CN;
Renwei Xie, Tianjin, CN;
Qiliang Chu, Tianjin, CN;
Tianjin University, Tianjin, CN;
Abstract
The present invention discloses a Fiber Bragg Grating demodulation device with a suppressed fluctuation at a variable ambient temperature and a demodulation method. The device comprises a broadband light source (), an optical attenuator (), a tunable F-P filter (), a first optical fiber isolator (), an erbium-doped optical fiber amplifier (), an optical fiber first-stage beam splitter (), a first optical fiber second-stage beam splitter (), optical fiber circulators (), FBG sensor arrays (), a first photoelectric detector array (), an optical fiber gas cell (), a second optical fiber second-stage beam splitter (), an optical fiber F-P etalon (), a notch filter (), an optical fiber assisted interferometer (), a data acquisition card () and a processor ().