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Translated title of the contribution: Fiber Ring Laser Sensor Based on Micro-Nano Fiber Interferometer and Highly Sensitive Detection of Gadolinium Nitrate

Wan Bo, Mengyu Wang*, Sifan Zeng, Xingdao He, Qiang Wu, Bin Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

In order to detect gadolinium nitrate with high sensitivity, a fiber ring cavity laser sensor based on micro-nano fiber interferometer is studied in this paper. A kind of micro-nano fiber interferometer with double cone structure is prepared. The strong evanescent field of micro-nano fiber can interact effectively with the external environment or surrounding medium, and the evanescent field increases with the decreasing of the diameter of fiber biconical structure. The sensitivity of refractive index sensing is also significantly improved. The experimental results show that when the diameter of micro-nano fiber is 20 μm, the refractive index sensitivity of the sensor is 1925 nm/RIU; for the mass concentration of gadolinium nitrate solution, the sensitivity of the sensor is as high as 0. 172 nm/(mg·mL−1). In addition, the fiber ring laser sensor has the advantages of high sensitivity and compact structure, and has a broad application prospect in biological modification and chemical sensing.

Translated title of the contributionFiber Ring Laser Sensor Based on Micro-Nano Fiber Interferometer and Highly Sensitive Detection of Gadolinium Nitrate
Original languageChinese (Traditional)
Article number0528002
Number of pages7
JournalLaser and Optoelectronics Progress
Volume60
Issue number5
Early online date3 Mar 2023
DOIs
Publication statusPublished - 2023
Externally publishedYes

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