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Chemical sensing through photonic crystal fiber:sulfuric acid detection

Frontiers of Optoelectronics 2019年第4期12卷 372-381页

作者： Etu PODDER Md.Belial HOSSAIN rayhan habib jibon Abdullah Al-Mamun BULBUL Himadri Shekhar MONDAL Electronics and Communication Engineering Discipline Khulna UniversityKhulna-9208Bangladesh Department of Electronics and Telecommunication Engineering(ETE) Bangabandhu Sheikh Mujibur Rahman Science and Technology UniversityGopalganjBangladesh

A photonic crystal fiber(PCF)for sensing of sulfuric acid is designed and analyzed using Comsol *** analyze the sensor performance,0%,10%,20%,30%,40%H2SO4 solution is placed into the fiber separately and then relative sensitivity,confinement loss,birefringence,effective area *** investigated for each solution over wavelength ranging from 0.8 to 1.8μ*** sensor structure affords moderately high relative sensitivity and around 63.4%sensitivity is achieved for the highest concentration of H2SO4 at the wavelength 1.5|im inxpolarization *** PCF model also shows zero confinement loss for all solutions of H2SO4 over wavelength ranging from 1 to 1.35μm and later on approximately 1.422×10^-17 dB/km confinement loss is found for the highest concentration of H2SO4 at 1.5|im ***,higher birefringence is attained when the concentration of sulfuric acid is lower and it is achieved 7.5×10^-4 at 1.5μm ***,higher sensing area is achieved at high concentration of sulfuric acid.

关键词： refractive index confinement loss birefri gence relative sensitivity

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Alcohol Sensing through Photonic Crystal Fiber at Different Temperature

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Optics and Photonics Journal 2018年第10期8卷 309-316页

作者： Etu Podder rayhan habib jibon Md. Bellal Hossain Abdullah Al-Mamun Bulbul Sagor Biswas Md. Anamul Kabir Electronics and Communication Engineering (ECE) Discipline Khulna University Khulna Bangladesh

This paper presents the investigation of relative sensitivity profile of Alcohol through Photonic Crystal fiber at different temperature. Here, 15%, 40%, 60%, 75% of Ethyl Alcohol-water mixture is inserted through the core of Photonic crystal fiber at temperature like 20°C, 25°C and 30°C. COMSOL Multiphysics is used as simulation software and the simulation process is done at wavelength range 600 nm to 1600 nm. From this work, the relative sensitivity is obtained approximately 44, 44.59, 44.85, 45 in percentage at temperature 20°C, 42, 44.2, 44.8, 44.9 in percentage at temperature 25°C, and 42, 43.8, 44.5, 44.85 in percentage at temperature 30°C for 15%, 40%, 60%, 75% of Ethyl Alcohol-water mixture at wavelength 1500 nm respectively. Again, higher sensitivity is achieved when this sensor is operated at lower temperature.

关键词： Photonic Crystal Fiber Relative Sensitivity COMSOL Multiphysics

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