Abstract
提出一种具有温度自校准功能的光纤折射率（RI）传感器，传感头结构由2段很短的多模光纤（MMF）之间夹熔一段对折射率不敏感的光纤布拉格光栅（FBG）构成，传感头总长度为14 mm，FBG可以为折射率测量提供良好的温度校准功能。实验结果证明，该传感器的折射率灵敏度为126 nm。其干涉光谱共振波长的温度灵敏度为35.09 pm/℃，用于温度校准的FBG的温度灵敏度为11.14 pm/℃。相比于普通的折射率传感器，这种具有温度自校准功能的折射率传感器具有良好的实用前景。
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