title: Hybrid LPFG/MEFPI sensor for simultaneous measurement of high-temperature and strain.
abstract: A hybrid fiber-optic sensor consisting of a long-period fiber grating (LPFG) and a micro extrinsic Fabry-Perot (F-P) interferometric (MEFPI) sensor is proposed and demonstrated for simultaneous measurement of high-temperature and strain. The LPFG written by using high-frequency CO(3+) laser pulses is used for high-temperature measurement while the MEFPI sensor fabricated by using 157nm F(2) laser pulses is used for strain measurement under high temperature. The distinguishing feature of such a hybrid fiber-optic sensor is that it can stand for high temperature of up to 650 masculineC and achieve precise measurement of strain under high temperature conditions simultaneously.
authors: Yun-Jiang
authors: YJ
authors: Rao
authors: Zeng-Ling
authors: ZL
authors: Ran
authors: Xian
authors: X
authors: Liao
authors: Hong-You
authors: HY
authors: Deng