Thermal gradient estimation with fiber-optic chirped FBG sensors: Experiments in biomedical applications. - Sanzhar Korganbayev; Yerzhan Orazayev; Sultan Sovetov; Ali Bazyl; Daniele Tosi; Emiliano Schena; Carlo Massaroni; Riccardo Gassino; Alberto Vallan; Guido Perrone (IEEE SENSORS, 2017)