高折射率和温度灵敏度的lpg高温操作

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI:10.1117/12.2027573

I. M. Nascimento, C. Gouveia, Surnimal Jana, S. Bera, J. Baptista, Paulo Moreira, Palas Biwas, S. Bandyopadhyay, P. Jorge

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引用次数: 3

摘要

报道了一种可承受高达450°C温度的高灵敏度折射率和温度测量光纤传感器。制备了两个相同的LPG光栅，其中一个被涂上高折射率(~1.78)的溶胶-凝胶薄膜，以增加其对外部折射率的灵敏度。对两种传感器的折射率和温度进行了表征和比较。对折射率和温度的灵敏度分别为1063 nm/RIU(1.338 ~ 1.348)和260 pm/°C。

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High refractive index and temperature sensitivity LPGs for high temperature operation

A fiber optic sensor for high sensitivity refractive index and temperature measurement able to withstand temperature up to 450 °C is reported. Two identical LPG gratings were fabricated, whereas one was coated with a high refractive index (~1.78) sol-gel thin film in order to increase its sensitivity to the external refractive index. The two sensors were characterized and compared in refractive index and temperature. Sensitivities of 1063 nm/RIU (1.338 – 1.348) and 260 pm/°C were achieved for refractive index and temperature, respectively.

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Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications

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