超角度倾斜光纤光栅的研究进展  

Research Progress of Excessively Tilted Fiber Grating

作　　者：孙玥真 闫志君 孙琪真[1] 周凯明 张琳 Sun Yuezhen;Yan Zhijun;Sun Qizhen;Zhou Kaiming;Zhang Lin(School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China;Institute of Photonic Technologies,Aston University,Brimingham B47ET,UK)

机构地区：[1]华中科技大学光学与电子信息学院,湖北武汉430074 [2]阿斯顿大学光子研究中心,英国伯明翰B47KT

出　　处：《激光与光电子学进展》2021年第13期180-190,共11页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(62075071);国家优秀青年基金(61922033)。

摘　　要：超角度倾斜光纤光栅(Ex-TFG)是一种结构新颖的新型光纤光栅器件,具有正交偏振耦合、高折射率灵敏度、低温度灵敏度以及矢量传感响应等特点。近年来,得益于Ex-TFG对周围环境折射率敏感的特点,其在生化传感领域得到了广泛的研究和应用。同时,Ex-TFG的非圆对称倏逝场分布为矢量传感应用提供了可能。基于理论和实验研究,从光栅的基本耦合模理论、包层模式传输特性等方面,详细介绍了Ex-TFG的基本理论和传感特性研究进展。The excessively tilted fiber grating(Ex-TFG) is a novel fiber grating device with unique structure, which has the characteristics of orthogonal polarization coupling, high refractive index sensitivity, low temperature sensitivity and vector sensing response. Recent years, benefitting from the fact that Ex-TFG is sensitive to the surrounding environment refractive index, Ex-TFG has been widely investigated and applied in the field of biochemical sensing. Meanwhile, the non-circular symmetric evanescent field distribution of Ex-TFG provides the possibility for vector sensing applications. Based on the theoretical and experimental research, the basic theory and research progress of sensing characteristics of Ex-TFG are exhibited in detail in terms of basic coupled-mode theory of gratings and properties of transmitted cladding modes.

关 键 词：光纤光学 倾斜光纤光栅 光纤传感 矢量传感 

分 类 号：TN253[电子电信—物理电子学]