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arXiv · 1506.01791

Enhancement of the sensitivity of a temperature sensor based on Fiber Bragg Gratings via weak value amplification

L. J. Salazar-Serrano·D. Barrera·W. Amaya·S. Sales·V. Pruneri·J. P. Torres
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Abstract

We present a proof-of-concept experiment aimed at increasing the sensitivity of temperature sensors implemented with Fiber Bragg gratings by making use of a weak value amplification scheme. The technique requires only linear optics elements for its implementation, and appears as a promising method for extending the range of temperatures changes detectable to increasingly lower values than state-of the-art sensors can currently provide. The device implemented here is able to generate a shift of the centroid of the spectrum of a pulse of $\mathrm{\sim 0.035\,nm/^{\circ}C}$, a nearly fourfold increase in sensitivity over the same Fiber Bragg Grating system interrogated using standard methods.

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L. J. Salazar-Serrano, D. Barrera, W. Amaya, S. Sales, V. Pruneri, J. P. Torres. 2015-06-05. Enhancement of the sensitivity of a temperature sensor based on Fiber Bragg Gratings via weak value amplification. https://doi.org/10.1364/ol.40.003962

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