[P-CTu17] C17. Optical Sensors and Systems

[P-CTu17-05] Temperature-insensitive measurement of refractive index using a no-core fiber-based modal interferometer

*tae yoon Kim¹, Junha Jung¹, Geun Weon Lim¹, Ju Han Lee¹ (1. University Of Seoul (Korea))

[Presentation Style] Online

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).