A Fabry–Pérot interferometer strain sensor composed of a rounded rectangular air cavity with a thin wall for high sensitivity and interference contrast

Qiao Li; Jianxin Wang; Haiwei Mu; Jingwei Lv; Lin Yang; Ying Shi; Zao Yi; Paul K. Chu; Qiang Liu; Chao Liu

doi:10.1016/j.optcom.2022.128920

Author(s)

Qiao Li
Jianxin Wang
Haiwei Mu
Jingwei Lv
Lin Yang
Ying Shi
Zao Yi
Qiang Liu
Chao Liu

Related Research Unit(s)

Detail(s)

Original language	English
Article number	128920
Journal / Publication	Optics Communications
Volume	527
Online published	29 Aug 2022
Publication status	Published - 15 Jan 2023

Link(s)

DOI	DOI https://doi.org/10.1016/j.optcom.2022.128920 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85138075937&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(3a37c3da-0659-4ac6-8ac9-2c49f23a1daa).html

Abstract

A Fabry–Pérot interferometer (FPI) strain sensor with high sensitivity and interference contrast is designed and fabricated by a simple, cost effective, and safe process which can be scaled up for commercial production. The excellent strain sensitivity of 8 pm/μɛ and interference contrast of 25 dB stem from the special structure with the unique air cavity, small wall thickness, and excellent reflection surface of the air cavity. The strain-temperature cross-sensitivity of the sensor is only 0.59 μɛ/°C in the temperature range of 20–80°C. The sensor has large potential in applications such as strain sensing.

Research Area(s)

Air cavity, Fabry–Pérot interferometer, Interference contrast, Optical fiber sensor, Strain sensitivity

Citation Format(s)

[ RIS ] [ BibTeX ]

A Fabry–Pérot interferometer strain sensor composed of a rounded rectangular air cavity with a thin wall for high sensitivity and interference contrast. / Li, Qiao; Wang, Jianxin; Mu, Haiwei et al.

In: Optics Communications, Vol. 527, 128920, 15.01.2023.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Li, Q, Wang, J, Mu, H, Lv, J, Yang, L, Shi, Y, Yi, Z, Chu, PK, Liu, Q & Liu, C 2023, 'A Fabry–Pérot interferometer strain sensor composed of a rounded rectangular air cavity with a thin wall for high sensitivity and interference contrast', Optics Communications, vol. 527, 128920. https://doi.org/10.1016/j.optcom.2022.128920

Li, Q., Wang, J., Mu, H., Lv, J., Yang, L., Shi, Y., Yi, Z., Chu, P. K., Liu, Q., & Liu, C. (2023). A Fabry–Pérot interferometer strain sensor composed of a rounded rectangular air cavity with a thin wall for high sensitivity and interference contrast. Optics Communications, 527, [128920]. https://doi.org/10.1016/j.optcom.2022.128920

Li Q, Wang J, Mu H, Lv J, Yang L, Shi Y et al. A Fabry–Pérot interferometer strain sensor composed of a rounded rectangular air cavity with a thin wall for high sensitivity and interference contrast. Optics Communications. 2023 Jan 15;527:128920. Epub 2022 Aug 29. doi: 10.1016/j.optcom.2022.128920

Li, Qiao ; Wang, Jianxin ; Mu, Haiwei et al. / A Fabry–Pérot interferometer strain sensor composed of a rounded rectangular air cavity with a thin wall for high sensitivity and interference contrast. In: Optics Communications. 2023 ; Vol. 527.