Monitoring Technique Based on Tilted Fiber Bragg Gratings for Power over Fiber in Multicore Fibers - Barco Alvarez, Javier; Altuna Perez, Ruben; Sanchez Montero, David Ricardo; Barrera, David; Vazquez Garcia, Maria Carmen (XIV Reunión Española de Optoelectrónica (OPTOEL25), 2025)