Strain sensor based on hollow microsphere Fabry-Perot cavity

Catarina S. Monteiro; Susana O. Silva; Orlando Frazão

doi:10.1117/12.2275862

22 August 2017 Strain sensor based on hollow microsphere Fabry-Perot cavity

Catarina S. Monteiro, Susana O. Silva, Orlando Frazão

Proceedings Volume 10453, Third International Conference on Applications of Optics and Photonics; 1045326 (2017) https://doi.org/10.1117/12.2275862
Event: Third International Conference on Applications of Optics and Photonics, 2017, Faro, Portugal

Abstract

Fusion splicing technique was explored for the fabrication of two sensing structures based on hollow microsphere Fabry- Perot cavity. The first sensor proposed was fabricated with a hollow microsphere tip, working as a probe sensor. This structure was studied for lateral load pressure, yielding a 1.56 ± 0.01 nm/N sensitivity. The second sensing structure relied on an in-line hollow microsphere, which allowed the detection of lateral load, with a sensitivity of 2.62 ± 0.02 nm/N. Furthermore, the proposed structure enabled strain sensing, with a sensitivity of 4.66 ± 0.03 pm/με. The two sensing structures were subjected to temperature, presenting low thermal cross-sensitivity.

Citation Download Citation

Catarina S. Monteiro, Susana O. Silva, and Orlando Frazão "Strain sensor based on hollow microsphere Fabry-Perot cavity", Proc. SPIE 10453, Third International Conference on Applications of Optics and Photonics, 1045326 (22 August 2017); https://doi.org/10.1117/12.2275862

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