Propagation effects in a polymer-based photonic liquid crystal fiber

All-fiber tunable devices based on high-index photonic crystal fibers filled with liquid crystals

“…Most of experimental works were based on microstructured fibers made of silica glass (some reviews focus only on such fibers), however there were also some interesting works in which host fibers made of different materials, including polymer fibers [28][29][30] and fibers made of glasses characterized by refractive indices higher than the refractive index of silica glass [31][32][33] that is lower than both refractive indices (ordinary and extraordinary) of most liquid crystals. So, in predominant papers describing silica fibers infiltrated with LCs, photonic band gap guidance was observed.…”

Influence of temperature on dispersion properties of photonic crystal fibers infiltrated with water

“…A resistant furnace can be used for this purpose , however temperature change is relatively slow due to large thermal capacity of the system. A fast dynamic change of temperature can be obtained with Peltier plate, where the fibre is mounted with thermal conductive glue to the plate (Wolinski et al 2014). Since thermal expansion of liquids is higher than glass one, we should consider this issue in the case of hermetically sealed PCF infiltrated with liquids.…”

Photonic Liquid Crystal Fibers – 15 years of research activities at Warsaw University of Technology

“…Due to high electro-, magneto-, and thermo-optic responses of LCs, their refractive indices may be relatively easily changed either by temperature or external physical fields. In this context, thermal and electrical tuning along with unusual spectral and polarization properties of PLCFs have been studied in detail over the last years [6][7][8][9][10][11][12][13]. Temperature-induced reversible switching between PBG and "index guiding") in a PCF filled with a low-birefringence LC mixture (1550) characterized by an ordinary refractive index higher than that of silica glass at lower temperature (PBG tuning); for higher temperatures the guiding mechanism changes to index guiding [7].…”