Optical characterization of strain sensing cables for Brillouin optical time domain analysis Filippo Bastianini, Francesco Falcetelli, Paweł Bocheński, Leonardo Rossi, Raffaella Di Sante and Gabriele Bolognini EPJ Web Conf., 255 (2021) 12011 Published online: 18 November 2021 DOI: 10.1051/epjconf/202125512011