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典型文献

Simulation and experimental verification of off-axis fiber Bragg grating bending sensor with high refractive index modulation

文献摘要：

Off-axis FBG simulations were performed in this paper using a finite element method in conjunction with the confor-mal mapping technique to study the bending sensing characteristics of the off-axis FBG with high index modulation.The refractive index(RI)increase of the grating region is taken into consideration for the mode field simulation.The influences of high RI increase and the offset distance of the grating on the bending sensitivity were analyzed.Off-axis FBGs with different offset distances were fabricated using femtosecond laser with phase mask technique in standard single-mode fiber.The simulation results were verified by the experiment.A bending sensitivity of 0.055 dB/m1 was achieved with an offset distance of 4 μm.The simulation and experiment results suggest that the grating offset distance has a greater influence on the sensitivity of the off-axis FBG with high RI modulation than that with low RI modula-tion.The proposed sensor structure and simulation results can provide suggestion for the design and processing of off-axis FBG bending sensors.

文献关键词：

中图分类号：

[1] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）

[2] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）

[3] 医药、卫生（R） / 神经病学与精神病学（R74） / 神经病学（R741）

作者姓名：

CUI Wei;ZHOU Yanfang;YAN Zhonghua;GUO Junqi;YUE Yiting;CHEN Hao

作者机构：

Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem,Chongqing University of Post and Telecommunications,Chongqing 400065,China

文献出处：

光电子快报（英文版）

引用格式：

[1]CUI Wei;ZHOU Yanfang;YAN Zhonghua;GUO Junqi;YUE Yiting;CHEN Hao-.Simulation and experimental verification of off-axis fiber Bragg grating bending sensor with high refractive index modulation)[J].光电子快报（英文版）,2022(04):200-203

A类：

confor

B类：

Simulation,experimental,verification,axis,fiber,Bragg,grating,bending,high,refractive,modulation,Off,simulations,were,performed,this,paper,using,finite,element,method,conjunction,mal,mapping,technique,study,sensing,characteristics,RI,increase,region,taken,into,consideration,mode,field,influences,offset,sensitivity,analyzed,FBGs,different,distances,fabricated,femtosecond,laser,phase,mask,standard,single,results,verified,by,dB,m1,was,achieved,that,greater,than,low,proposed,structure,can,provide,suggestion,design,processing,sensors

AB值：

0.437208

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