Chinese Optics Letters, 2020, 18 (1): 011202, Published Online: Dec. 6, 2019
High sensitivity conductivity-temperature-depth sensing based on an optical microfiber coupler combined fiber loop 
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microfiber coupler fiber loop salinity temperature and depth sensing cross sensitivity conductivity-temperature-depth measurement system
Abstract
In order to meet the practical needs of all-fiber conductivity-temperature-depth sensors with high sensitivity, compact structure, and easy packaging, this Letter uses a microfiber coupler combined with fiber loop (MCFL) reflective photonic device to conduct salinity, temperature, and deep sensing experiments. These MCFLs’ dynamic range and resolution of salinity, temperature, and depth can meet the requirements of actual marine environment monitoring. This structure opens up a new design idea for the practical research of microfiber coupler-based marine environmental parameter sensors.
Liang Cao, Yang Yu, Min Xiao, Junbo Yang, Xueliang Zhang, Zhou Meng. High sensitivity conductivity-temperature-depth sensing based on an optical microfiber coupler combined fiber loop[J]. Chinese Optics Letters, 2020, 18(1): 011202.
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