采用逐点法制作长周期光纤光栅的水中硝酸盐化学传感器

2012 International Conference on Optical Engineering (ICOE) Pub Date : 2012-07-26 DOI:10.1109/ICOE.2012.6409565

J. F. Akki, A. S. Lalasangi, U. Raikar, V. K. Kulkarni, P. Radhakrishnan, I. I. Pattanshetty

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引用次数: 3

摘要

介绍了长周期光栅(LPG)的制备及其在化学传感器中的应用。采用点对点的方法在单模通信级光纤中制备了光栅周期为610μm的LPG。我们使用12w的CO2激光照射光纤。将LPG浸泡在浓度为10ppm ~ 50ppm的硝酸溶液中，研究其共振波长的行为。结果表明，液化石油气共振波长呈线性关系，可用于测定水中硝酸盐浓度。

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Chemical sensor for nitrate in water using long period optical fiber grating fabricated by point by point method

We present long period grating (LPG) fabrication and application of LPG as chemical sensor. We fabricated LPG of grating period 610μm in single mode communication grade fiber using point by point method. Here we used 12watt CO2 laser to irradiate the fiber. The behavior of resonance wavelength of LPG was studied by immersing it in nitrate solution of concentration ranging from 10ppm to 50ppm. The results showed the linear behavior of resonance wavelength of LPG that can be used to determine the concentration of nitrate in water.

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2012 International Conference on Optical Engineering (ICOE)

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