High sensitivity fiber laser temperature sensor
- Martinez-Rios, A.
- Anzueto-Sanchez, G.
- Selvas-Aguilar, R.
- Guzman, A.A.C.
- Toral-Acosta, D.
- Guzman-Ramos, V.
- Duran-Ramirez, V.M.
- Guerrero-Viramontes, J.A.
- Calles-Arriaga, C.A.
Publication date
January 2015
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
This paper presents an erbium-doped fiber laser temperature sensor, which is based on an intracavity fiber filter immersed in glycerol/water solutions. The sensing element is the intracavity fiber filter, consisting of a two-taper fiber Mach-Zehnder interferometer (MZFI). The high refractive index dispersion of glycerol/water solutions with temperature allowed the modification of the MZFI spectral characteristics and hence determines the lasing wavelength. The sensitivity of 1089 pm/°C and a signal-to-noise ratio of 50 dB make the proposed sensor suitable for real applications. © 2001-2012 IEEE
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