Spectral and polarization properties of microstructured liquid crystal fibers

Spectral and polarization properties of microstructured photonic crystal fibers filled with nematic liquid crystals characterized by either extremely low (of the order ~ 0.05) or higher (of the order ~ 0.3) material birefringence have been investigated. The photonic crystal fiber used as a host material was manufactured in Lublin, Poland and the nematic liquid crystals were introduced into the micro holes of the photonic crystal fiber by the capillary effect. Due to anisotropic properties of the obtained microstructured photonic liquid-crystal fiber, switching between different guiding mechanisms as well as novel spectral and polarization phenomena have been observed.