Novel refractive index sensor based on fiber bragg grating in nano-bore optical fiber

Li, Xiaohe; Liang, Sheng; Zhang, Yongxin; Yu, Qianqing; Sheng, Xinzhi; Lou, Shuqin; Wang, Xin; Zhang, Wan; Dong, Mingli; Zhu, Lianqing

doi:10.1007/s11082-019-1836-6

Cited by 6 publications

(1 citation statement)

References 57 publications

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“…With the innovation of different optical fiber structures, these structures are also increasingly used in FBG salinity sensors. In 2019, Xiaohe Li [ 45 ] presented a theoretical study of a new RI sensor based on FBG in NBF. The spectral response of the FBG in the NBF to filled RI in different aperture sizes and RI ranges was investigated by means of the finite element method and the TMM method.…”

Section: Salinity Ofssmentioning

confidence: 99%

Review of Seawater Fiber Optic Salinity Sensors Based on the Refractive Index Detection Principle

Wang

Shi

et al. 2023

Sensors

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This paper presents a systematic review of the research available on salinity optic fiber sensors (OFSs) for seawater based on the refractive index (RI) measurement principle for the actual measurement demand of seawater salinity in marine environmental monitoring, the definition of seawater salinity and the correspondence between the seawater RI and salinity. To further investigate the progress of in situ measurements of absolute salinity by OFSs, the sensing mechanisms, research progress and measurement performance indices of various existing fiber optic salinity sensors are summarized. According to the Thermodynamic Equation of Seawater-2010 (TEOS-10), absolute salinity is recommended for sensor calibration and measurement. Comprehensive domestic and international research progress shows that fiber-optic RI sensors are ideal for real-time, in situ measurement of the absolute salinity of seawater and have excellent potential for application in long-term in situ measurements in the deep ocean. Finally, based on marine environmental monitoring applications, a development plan and the technical requirements of salinity OFSs are proposed to provide references for researchers engaged in related industries.

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Section: Salinity Ofssmentioning

confidence: 99%