title: Holographic polymer-dispersed liquid crystal Bragg grating integrated inside a solid core photonic crystal fiber.
abstract: A polymer/liquid crystal-based fiber Bragg grating (PLC-FBG) is fabricated with visible two-beam holography by photo-induced modulation of a prepolymer/liquid crystal solution infiltrated into the hollow channels of a solid core photonic crystal fiber (PCF). The fabrication process and effects related to the photonic bandgap guidance into the infiltrated PCF, and characterization of the PLC-FBG, are discussed. Experimental data presented here demonstrate that the liquid crystal inclusions of the PLC-FBG lead to high thermal and bending sensitivities. The microscopic behavior of the polymer/liquid crystal phase separation inside the PCF capillaries is examined using scanning electron microscopy, and is discussed further.
authors.affiliation: Foundation of Research and Technology-Hellas (FORTH), Institute of Electronic Structure and Laser (IESL), Heraklion, Greece. zito@iesl.forth.gr
authors.forename: Gianluigi
authors.initials: G
authors.lastname: Zito
authors.forename: Stavros
authors.initials: S
authors.lastname: Pissadakis