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:
Jul. 22, 2014
Filed:
Aug. 20, 2010
Zaixuan Zhang, Zhejiang, CN;
Chenxia LI, Zhejiang, CN;
Shangzhong Jin, Zhejiang, CN;
Jianfeng Wang, Zhejiang, CN;
Huaping Gong, Zhejiang, CN;
Yi LI, Zhejiang, CN;
Zaixuan Zhang, Zhejiang, CN;
Chenxia Li, Zhejiang, CN;
Shangzhong Jin, Zhejiang, CN;
Jianfeng Wang, Zhejiang, CN;
Huaping Gong, Zhejiang, CN;
Yi Li, Zhejiang, CN;
China Jiliang University, Zhejiang, CN;
Abstract
A distributed optical fiber sensor based on Raman and Brillouin scattering is provided. The distributed optical fiber sensor includes a semiconductor FP cavity pulsed wideband optical fiber laser (), a semiconductor external-cavity continuous narrowband optical fiber laser (), a wave separator (), an electro-optic modulator (), an isolator (), an Er-doped optical fiber amplifier (), a bidirectional coupler (), an integrated wavelength division multiplexer (), a first photoelectric receiving and amplifying module (), a second photoelectric receiving and amplifying module (), a direct detection system (), a narrowband optical fiber transmission grating (), a circulator () and a coherence detection module (). The temperature and the strain can be measured simultaneously, and the signal-to-noise ratio of the system is enhanced.