材料科学
光纤布拉格光栅
超细纤维
光学
折射率
弯曲
红外线的
光纤
波长
栅栏
光电子学
制作
复合材料
医学
物理
替代医学
病理
作者
Enlai Song,Xueting Long,qiaochu yang,Fangzhou Jin,Xu Yue,Zesen Li,Lili Liang,Yang Ran,Bai‐Ou Guan
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2023-04-11
卷期号:31 (10): 15674-15674
被引量:8
摘要
Fiber-optic devices working in the visible and near-infrared windows are attracting attention due to the rapid development of biomedicine that involves optics. In this work, we have successfully realized the fabrication of near-infrared microfiber Bragg grating (NIR-µFBG), which was operated at the wavelength of 785 nm, by harnessing the fourth harmonic order of Bragg resonance. The NIR-µFBG provided the maximum sensitivity of axial tension and bending to 211 nm/N and 0.18 nm/deg, respectively. By conferring the considerably lower cross-sensitivity, such as response to temperature or ambient refractive index, the NIR-µFBG can be potentially implemented as the highly sensitive tensile force and curve sensor.
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