Method for measuring the strain of material using short cavity fiber laser

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United States of America Patent

PATENT NO 9016105
APP PUB NO 20150020568A1
SERIAL NO

14049987

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Abstract

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A method for measuring the strain of material using 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 fiber and a loop mirror; b) fixing the short cavity fiber laser on the material whose strain will be measured, and matching the stretching direction of the fiber of the short cavity fiber laser with the direction of the strain produced by the material to be measured; c) measuring the drift amount of longitudinal mode output by the short cavity fiber laser; and d) calculating and obtaining the strain of the material to be measured.

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Patent OwnerAddress
BEIJING INFORMATION SCIENCE & TECHNOLOGY UNIVERSITY100192 BEIJING CITY HAIDIAN DISTRICT QINGHE SMALL CAMP ROAD NO 15 MUNICIPAL DISTRICT BEIJING CITY 100192

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dong, Mingli Beijing, CN 17 92
He, Wei Beijing, CN 573 3647
Jia, Yudong Beijing, CN 2 4
Luo, Fei Winchester, US 103 361
Zhang, Yinmin Beijing, CN 7 52
Zhu, Lianqing Beijing, CN 13 63

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