干涉测量
海水
材料科学
分析化学(期刊)
光学
物理
地质学
化学
海洋学
色谱法
作者
Chengkun Yang,Shengqi Zhang,Donglei Shi,Yi-Chang Wu,Zihan Cao,Zhengyong Liu
出处
期刊:Applied Optics
[The Optical Society]
日期:2021-09-27
卷期号:60 (28): 8904-8904
被引量:12
摘要
A Sagnac loop interferometer based on concatenated polarization-maintaining fiber (PMF) tapers is proposed for simultaneous measurement of seawater salinity and temperature. The influences of the distance between the PMF tapers as well as fiber taper diameter on sensor performance have been investigated. Experimental results indicate that the fabricated sensor with a distance of 3 cm between adjacent fiber tapers possesses the salinity and temperature sensitivities of 0.367 nm/% and − 0.728 n m / ∘ C , respectively, and the taper waist diameter of 20 µm would help to improve salinity sensitivity in comparison with a sensor of 30 µm in diameter. The proposed Sagnac loop interferometer based on concatenated PMF tapers is expected to find potential applications in the measurement of seawater salinity.
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