Using tunable laser diodes to classify cold drinks brands and interrogate an FBG-based temperature sensor

Journal
International Conference on Fibre Optics and Photonics, 2014
Date Issued
2014-12-19
Author(s)
Mallik, Rahul
Gupta, Ankita
Joshi, Ameya
Abstract
Tunable diode laser spectroscopy is used to classify several soft drinks brands based on absolute measurement of concentration and pressure of CO2 in the bottle headspace. Accurate FBG-based temperature sensing is also realized with a narrow linewidth tunable 1650nm laser and a fiber ring resonator.