Author:
Kim Taeyoon,Jung Junha,Lim Geun Weon,Lee Ju Han
Abstract
We demonstrate a temperature-insensitive refractive index (RI) sensor based on an SMF-NCF-SMF structure-based modal interferometer with a wave configuration. The RI measurement sensitivity of our proposed refractometer was ~-53.24nm/RIU with no temperature sensitivity (0 pm/°C).