Vernier Effect-Based Optical Fiber Sensor for Humidity and Temperature Monitoring

被引：25

作者：

Ferreira, Ricardo ^{[1
,2
]}

Paixao, Tiago ^{[1
,2
]}

Lopes, Guilherme ^{[1
,2
]}

Domingues, M. Fatima ^{[3
]}

Oliveira, Ricardo ^{[3
]}

Antunes, Paulo ^{[1
,2
]}

机构：

[1] Univ Aveiro, Dept Phys, Campus Santiago, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, i3N, Campus Santiago, P-3810193 Aveiro, Portugal

[3] Inst Telecomunicacoes, P-3810193 Aveiro, Portugal

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2021年 / 33卷 / 19期

关键词：

Optical fiber sensors; Optical fibers; Temperature sensors; Optical interferometry; Optical device fabrication; Humidity; Microcavities; Optical Vernier effect; optical fiber sensor; humidity monitoring; temperature monitoring; STRAIN; CAVITY;

D O I：

10.1109/LPT.2021.3102672

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report on a simple and cost-effective sensing scheme for humidity and temperature sensing, based on the generation of optical Vernier effect using two different fiber optic Fabry-Perot interferometers (FFPIs). By using an insensitive reference FFPI (rFFPI) and a sensitive FFPI (sFFPI) fabricated by hot and cold splicing methods, respectively, the complexity associated with the inherent traditional isolation schemes was mitigated, allowing to attain the maximum sensitivities of -2.69 nm/degrees C and -2.4 nm/% for temperature and relative humidity, respectively. The sensor's performance combined with its simple and customizable configuration makes it a suitable option for applications with high-resolution requirements.

引用

页码：1061 / 1064

页数：4

共 27 条

[11] Ultrasensitive refractive index sensor based on enhanced Vernier effect through cascaded fiber core-offset pairs [J].