Strain sensor based on hollow microsphere Fabry-Perot cavity

• Type: Article in International Conference Proceedings Book
• Date: 2017

Authors

Monteiro, CS (Author) Other; Susana Silva (Author) FCUP; Frazao, O (Author) FCUP

Conference proceedings International

Title: THIRD INTERNATIONAL CONFERENCE ON APPLICATIONS OF OPTICS AND PHOTONICS

3rd International Conference on Applications of Optics and Photonics

Faro, PORTUGAL, MAY 08-12, 2017

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Other information

Authenticus ID: P-00N-0Z5

DOI: 10.1117/12.2275862

Abstract (EN): 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/mu epsilon. The two sensing structures were subjected to temperature, presenting low thermal cross-sensitivity.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4