title: In-fiber integrated accelerometer.
abstract: A compact in-fiber integrated fiber-optic Michelson interferometer based accelerometer is proposed and investigated. In the system, the sensing element consists of a twin-core fiber acting as a bending simple supported beam. By demodulating the optical phase shift, we obtain that the acceleration is proportional to the force applied on the central position of the twin-core fiber. A simple model has been established to calculate the sensitivity and resonant frequency. The experimental results show that such an accelerometer has a sensitivity of 0.09 rad/g at the resonant frequency of 680 Hz.
authors.affiliation: Photonics Research Center, School of Science, Harbin Engineering University, Harbin 150001, China. yangjun141@263.net
authors.forename: Feng
authors.initials: F
authors.lastname: Peng
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
authors.forename: Xingliang
authors.initials: X
authors.lastname: Li
authors.forename: Yonggui
authors.initials: Y
authors.lastname: Yuan
authors.forename: Bing
authors.initials: B
authors.lastname: Wu
authors.forename: Ai
authors.initials: A
authors.lastname: Zhou
authors.forename: Libo
authors.initials: L
authors.lastname: Yuan