Optical Fiber Strain Sensor at 2 μm Band with Improved Sensitivity

Qi Qin,Fengping Yan,Yan Liu,Zhenchen Cui,Ying Guo,Ting Li,Guangde Li,Dan Cheng,Dandan Yang

2021 IEEE 6th Optoelectronics Global Conference (OGC)（2021）

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摘要

Based on the multimode single-mode multimode fiber structure, an optical fiber strain sensor operated at $2 \mu \mathrm{m}$ band with sensitivity of $1.32 \mathrm{pm} / \mu \varepsilon$ was realized. Compared with that operated at $1.5 \mu \mathrm{m}$ band, the sensitivity was improved about 50 %.

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关键词

Optical fibers,Optical fiber sensors,Micrometers,Sensitivity,Conferences,Interference,Capacitive sensors

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