Tunable thermo-optic wavelength filter of the C-shaped microfiber taper interferometer intergrated with nanosized liquid crystal layer

Abstract

A thermo-optic tunable filter based on a C-shaped microfiber taper interferometer integrated with nanosized high refractive-index liquid crystal cladding is proposed. The experimental results show that a high tuning efficiency of 1.05 nm/°C is achieved.