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:
Aug. 05, 2014
Filed:
Oct. 09, 2013
Beijing Information Science & Technology University, Beijing, CN;
Lianqing Zhu, Beijing, CN;
Fei Luo, Winchester, MA (US);
Mingli Dong, Beijing, CN;
Yinmin Zhang, Beijing, CN;
Wei He, Beijing, CN;
Xiaoping Lou, Beijing, CN;
Beijing Information Science & Technology University, Beijing, CN;
Abstract
A method for measuring temperature of an object using the longitudinal mode output by a short cavity fiber laser, includes steps of: a) arranging the short cavity fiber laser, which laser comprises sequentially coupled laser diode pumping source, a wavelength division multiplexer, a fiber bragg grating, an active optical fiber and a loop mirror which are; b) contacting the short cavity fiber laser with the object whose temperature will be measured; c) measuring the drift amount of longitudinal mode output by the short cavity fiber laser; and d) calculating the temperature of the object to be measured. According to the present invention, the temperature can be measured accurately utilizing the features of the short cavity fiber laser. The arranged fiber laser has a small and simple structure, high measuring accuracy, good portability, and can be used in a variety of occasions.