基于倾斜布拉格光纤光栅的高灵敏度折射率传感器
收稿日期: 2015-12-21
网络出版日期: 2017-12-30
基金资助
国家自然科学基金资助项目(61377083, 61077065)
High sensitivity refractive index sensor based on tilted fiber Bragg gratings
Received date: 2015-12-21
Online published: 2017-12-30
石磊, 刘云启, 宋红亮, 邹芳, 王廷云 . 基于倾斜布拉格光纤光栅的高灵敏度折射率传感器[J]. 上海大学学报(自然科学版), 2017 , 23(6) : 859 . DOI: 10.12066/j.issn.1007-2861.1763
We demonstrate fabrication of tilted fiber Bragg gratings (TFBGs) with different tilt angles for the measurement of surrounding refractive index (SRI). High order
cladding modes has been found to disappear gradually, with their resonance wavelength linearly increasing as SRI increases. The measured index sensitivity is higher than 500 nm/RIU. By optimizing the tilt angle of the grating, the proposed optical fiber sensor can be used for SRI measurements in different index range.
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