Novel Apodized Fiber Bragg GratingApplied for Medical Sensors:Performance Investigation  

作　　者：Ramya Arumugam Ramamoorthy Kumar Samiappan Dhanalakshmi Khin Wee Lai Lei Jiao Xiang Wu 

机构地区：[1]Department of Electronics and Communication Engineering,College of Engineering and Technology,SRM Institute of Science and Technology,Kattankulathur,Chengalpattu,603203,India [2]Department of Biomedical Engineering,Faculty of Engineering,Universiti Malaya,Kuala Lumpur,50603,Malaysia [3]General Hospital of Xuzhou Mining Group,Xuzhou,221000,China [4]School of Medical Information&Engineering,Xuzhou Medical University,Xuzhou,221000,China

出　　处：《Computer Modeling in Engineering & Sciences》2023年第4期301-323,共23页工程与科学中的计算机建模（英文）

基　　金：supported in part by Universiti Malaya,and ACU UK under Project No.IF063-2021.

摘　　要：Sensors play an important role in shaping and monitoring human health.Exploration of methods to use Fiber Bragg Grating(FBG)with enhanced sensitivity has attracted great interest in the field of medical research.In this paper,a novel apodization function is proposed and performance evaluation and optimization of the same have been made.A comparison was conducted between various existing apodization functions and the proposed one based on optical characteristics and sensor parameters.The results evince the implementation of the proposed apodization function for vital sign measurement.The optical characteristics considered for evaluation are Peak Resonance Reflectivity level,Side Lobes Reflectivity level and FullWidth HalfMaximum(FWHM).The proposed novel apodization novel function has better FWHM,which is narrower than the FWHM of uniform FBG.Sensor characteristics like a quality parameter,detection accuracy and sensitivity also show improvement.The proposed novel apodization function is demonstrated to have a better shift in wavelength in terms of temperature and pulse measurement than the existing functions.The sensitivity of the proposed apodized function is enhanced with a Poly-dimethylsiloxane coating of varying thickness,which is 6 times and 5.14 times greater than uniform Fiber Bragg grating and FBG with the proposed novel apodization function,respectively,enhancing its utilization in the field of medicine.

关 键 词：Fiber bragg grating APODIZATION optical sensing TEMPERATURE STRAIN sensitivity 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]