Simplifying the design of microstructured optical fibre pressure sensors

被引：31

作者：

Osorio, Jonas H. ^{[1
]}

Chesini, Giancarlo ^{[1
]}

Serrao, Valdir A. ^{[2
]}

Franco, Marcos A. R. ^{[2
]}

Cordeiro, Cristiano M. B. ^{[1
]}

机构：

[1] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, Campinas, SP, Brazil

[2] Inst Estudos Avancados, IEAv, Dept Ciencia & Tecnol Aeroespacial, Sao Jose Dos Campos, Brazil

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

关键词：

PHOTONIC-CRYSTAL FIBER; HYDROSTATIC-PRESSURE; SENSING CHARACTERISTICS; BIREFRINGENCE; TEMPERATURE; SENSITIVITY;

D O I：

10.1038/s41598-017-03206-w

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In this paper, we propose a way to simplify the design of microstructured optical fibres with high sensitivity to applied pressure. The use of a capillary fibre with an embedded core allows the exploration of the pressure-induced material birefringence due to the capillary wall displacements and the photoelastic effect. An analytical description of pressure-induced material birefringence is provided, and fibre modal characteristics are explored through numerical simulations. Moreover, a capillary fibre with an embedded core is fabricated and used to probe pressure variations. Even though the embedded-core fibre has a non-optimized structure, measurements showed a pressure sensitivity of (1.04 +/- 0.01(nm/bar, which compares well with more complex, specially designed fibre geometries reported in the literature. These results demonstrate that this geometry enables a novel route towards the simplification of microstructured fibre-based pressure sensors.

引用

页数：9

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