1. A Dual-parameter Fabry–Perot Interferometer Sensor Based on Single Mode-Photonic Crystal-Multimode Fiber Structure
- Author
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Zhou Kangpeng, Zhang Wen, Dong Mingli, He Wei, and Zhu Lianqing
- Subjects
010302 applied physics ,Multi-mode optical fiber ,Materials science ,010308 nuclear & particles physics ,business.industry ,Single-mode optical fiber ,Linearity ,01 natural sciences ,Temperature measurement ,0103 physical sciences ,Optoelectronics ,Fiber ,business ,Instrumentation ,Fabry–Pérot interferometer ,Photonic-crystal fiber ,Photonic crystal - Abstract
The paper presents a FPI sensor by splicing a photonic crystal fiber (PCF) to a well-cleaved single-mode fiber (SMF) and a multimode fiber (MMF), preparing a SMF–PCF–MMF structure, and the section of PCF was the cavity. Temperature and NaCl solution concentration responses were investigated experimentally. The temperature sensitivity is ∼12.3 pm/°C and concentration sensitivity is ∼0.01 dB/%. The proposed sensor could offer such features as low cross-sensitivity, good temperature stability, temperature and concentration linearity are both over 0.996, making it attractive for liquid concentration and temperature measurement.
- Published
- 2019