Nascimento, I M and Gouveia, C and Jana, Sunirmal and Bera, Susanta and Baptista, J M and Moreira, Paulo and Biswas, Palas and Bandyopadhyay, Somnath and Jorge, Pedro A S (2013) High refractive index and temperature sensitivity LPGs for high temperature operation. In: 8th Iberoamerican Optics Meeting, RIAO 2013 and 11th Latin American Meeting on Optics, Lasers, and Applications, OPTILAS 2013, 22-26 July 2013, Porto; Portugal.

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Abstract

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.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Processing Science Electronics
Divisions:	Fiber Optics and Photonics
Depositing User:	Bidhan Chaudhuri
Date Deposited:	11 Jul 2016 11:16
Last Modified:	08 Feb 2017 09:53
URI:	http://cgcri.csircentral.net/id/eprint/3539

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