Fabry-Perot cavity-based high sensitivity fiber optic negative pressure sensor

Jingqvan Chen; Cheng Sun; Wei Wang; Guanjun Wang; Mengxing Huang

doi:10.1117/12.2625727

28 March 2022 Fabry-Perot cavity-based high sensitivity fiber optic negative pressure sensor

Jingqvan Chen, Cheng Sun, Wei Wang, Guanjun Wang, Mengxing Huang

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121699X (2022) https://doi.org/10.1117/12.2625727
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

A new fiber optic negative pressure sensor based on pressure-sensitive diaphragm sealed Fabry-Perot cavity which cascaded to the fiber tip is proposed in this paper. The experiment result shows a highly sensitivity of 101.9 pm/kPa within the measurement range of 10.0-100.4 kPa, the response and recovery time are, respectively, 4 and 10 second over the negative pressure variation of 100.4-15.1 kPa and 20.0-110.4 kPa. According to the experiment results, the proposed sensor possesses the advantages of high sensitivity, fast response and recovery time.

Citation Download Citation

Jingqvan Chen, Cheng Sun, Wei Wang, Guanjun Wang, and Mengxing Huang "Fabry-Perot cavity-based high sensitivity fiber optic negative pressure sensor", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121699X (28 March 2022); https://doi.org/10.1117/12.2625727

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