Numerical analysis of photonic crystal fiber based hemoglobin sensor

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• 作者：Sayantika Chowdhury ; ^{sayantikaece@gmail.com} ; ^{sayantika.chowdhury9@gmail.com} ; Annesha Maity
• 关键词：Hemoglobin concentration ; Optical fiber sensor ; Photonic crystal fiber ; Confinement loss
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：130
• 期：Complete
• 页码：825-829
• 全文大小：1088 K
• 卷排序：130

文摘

Optical fiber sensor for measuring hemoglobin (Hb) concentrations of human peripheral blood based on photonic crystal fiber (PCF) is numerically proposed in this work. It presents a simple and accurate method to measure Hb concentration. In this paper, we have numerically analyzed a solid-core PCF being infiltrated with Hb by using full vectorial finite element method (FEM) based solver. From the imaginary part of the fundamental mode effective index we obtain the confinement loss of the fiber for different Hb concentrations. As Hb concentration increases, confinement loss increases indicating the amount of Hb present. By tailoring the pitch constant and diameter of the holes, we have also deduced the dependence of sensor performance on these parameters.