title: High sensitivity optical waveguide accelerometer based on Fano resonance.
abstract: An optical waveguide accelerometer based on tunable asymmetrical Fano resonance in a ring-resonator-coupled Mach-Zehnder interferometer (MZI) is proposed and analyzed. A Fano resonance accelerometer has a relatively large workspace of coupling coefficients with high sensitivity, which has potential application in inertial navigation, missile guidance, and attitude control of satellites. Due to the interference between a high-Q resonance pathway and a coherent background pathway, a steep asymmetric line shape is generated, which greatly improves the sensitivity of this accelerometer. The sensitivity of the accelerometer is about 111.75 mW/g. A 393-fold increase in sensitivity is achieved compared with a conventional MZI accelerometer and is approximately equal to the single ring structure.
authors.forename: Fenghua
authors.initials: F
authors.lastname: Wan
authors.forename: Guang
authors.initials: G
authors.lastname: Qian
authors.forename: Ruozhou
authors.initials: R
authors.lastname: Li
authors.forename: Jie
authors.initials: J
authors.lastname: Tang
authors.forename: Tong
authors.initials: T
authors.lastname: Zhang