Investigation of gas sensor based on differential optical absorption spectroscopy using photonic crystal fiber

Alexandria Engineering Journal

Arafa H. Aly¹  Muhammad Shahin Uddin²  Vigneswaran Dhasarathan³  Mst. Nargis Aktar³  Kawsar Ahmed⁴  Bikash Kumar Paul⁵  Fahad Ahmad Al-Zahrani⁶ 

[1] Computer Engineering Department, Umm Al-Qura University, Mecca 24381, Saudi Arabia (F.A. Al-Zahrani).;Corresponding authors at: Department of Information and Communication Technology, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh (K. Ahmed);Department of Information and Communication Technology, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh;Group of Bio-photomatiχ, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh;Department of Software Engineering, Daffodil International University, Sukrabad, Dhanmondi, Dhaka 1207, Bangladesh;Group of Bio-photomatiχ, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh;

关键词: Gas sensor;    Photonic crystal fiber;    Sensitivity;    Confinement loss;    Effective mode area;    Finite element method;   

DOI  :  

来源: DOAJ

【 摘 要 】

This study presented a novel shape photonic crystal fiber based gas sensor for the first time. Perfectly circular shape air hole are arranged to form core and cladding region. Based on full vector finite element method (FV-FEM) and circular shape perfectly matched layer (PML) the designed sensor has been investigated. The model field, effective mode index, sensitivity, confinement loss, effective mode area, nonlinearity, V parameter of the sensor fiber fundamental mode are investigated through FEM based commercial software package COMSOL Multiphysics. Numerical simulations evidences that the sensor shows the sensitivity responses of 64.69% and confinement loss of 4.38 × 10-06 dB/cm at the transmission wavelength λ = 1.55 µm. Besides, the sensor achieves single mode operation over the whole operating wavelength. Based on these excellent optical behaviors of the designed sensor it can be undoubtedly expect that, this sensor will play an influential role detecting gas molecules as well as PCF based optical sensing areas.

【 授权许可】

Unknown