Refractive Index Sensor Using a SMS Fiber in an Erbium-Doped Fiber Ring Laser

被引：0
|
作者：
Diaz, Silvia [1 ,2 ]
Matias, Ignacio R. [1 ,2 ]
机构：
[1] Univ Publ Navarra, Dept Elect Elect & Commun Engn, Pamplona 31006, Spain
[2] Univ Publ Navarra, Inst Smart Cities, Pamplona 31006, Spain
来源：
IEEE SENSORS LETTERS | 2025年 / 9卷 / 01期
关键词：
Optical fiber sensors; Sensors; Optical fiber communication; Refractive index; Erbium-doped fiber lasers; Ring lasers; Measurement by laser beam; Optical fiber couplers; Optical fiber dispersion; Laser stability; Sensor phenomena; fiber ring lasers; multimode fiber; optical sensors; refractive index (RI) sensitivity; single-mode fiber (SMF); LEVEL SENSOR; HUMIDITY; TEMPERATURE;
D O I：
10.1109/LSENS.2024.3516942
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：
In this letter, a refractive index (RI) sensor was developed and experimentally validated using an interferometric design that integrates single-mode fiber (SMF), no-core multimode fiber, and another segment of SMF. The single-mode-multimode-single-mode structure was employed as a filter and inserted into an erbium-doped fiber ring laser to enhance the sensor's detection accuracy. Experimental findings show that the sensor provides an outstanding linear response, with an RI sensitivity of 96.639 nm/RIU over a measurement range of 1.3468-1.4061, along with strong stability.
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页数：4
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