Nematic and Chiral Nematic Liquid Crystal Orientation Control in Photonic Liquid Crystal Fibers

摘要

Recently introduced photonic liquid crystal fibers (PLCFs) prove to be excellent materials as all fiber devices in optic fiber telecommunication. PLCFs are a perfect complement the optic communication technology by actively controlled all-fiber devices such as attenuators, polarization or PMD controllers or phase shifters. The control is based on molecular orientation of an liquid crystal (LC) in a PLCF. The most research is devoted to an active control of LC orientation by external fields. A passive control is mostly omitted or assumed to be planar.