材料科学
包层模式
光学
包层(金属加工)
长周期光纤光栅
折射率
光纤布拉格光栅
全硅纤维
渐变折射率纤维
光子晶体光纤
光纤传感器
波长
光纤
栅栏
涂层
光电子学
保偏光纤
复合材料
物理
作者
Ignacio Del Villar,J.L. Cruz,Abian B. Socorro,Jesús M. Corres,Ignacio R. Matı́as
出处
期刊:Optics Express
[The Optical Society]
日期:2016-07-26
卷期号:24 (16): 17680-17680
被引量:63
摘要
This work presents a refractive index sensor based on a long period fiber grating (LPFG) made in a reduced cladding fiber whose low order cladding modes have the turning point at large wavelengths. The combination of these parameters results in an improved sensitivity of 8734 nm/refractive index unit (RIU) for the LP0,3 mode in the 1400-1650 wavelength range. This value is similar to that obtained with thin-film coated LPFGs, which permits to avoid the coating deposition step. The numerical simulations are in agreement with the experimental results.
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