title: Simplified hollow-core photonic crystal fiber.
abstract: An original design of hollow-core photonic crystal fiber composed of a thin silica ring suspended in air by six silica struts is proposed. This structure can be viewed as a simplified Kagomé-lattice fiber reduced to one layer of air holes. By working on the core surround parameters, an efficient antiresonant air guiding was successfully demonstrated. Two large low-loss windows (visible/IR) were measured with a minimum attenuation less than 0.2 dB radicalm at yellow wavelengths, comparable with state-of-the-art designs. The curvature behavior was also studied, showing low bending loss sensitivity for the fundamental transmission band. These relevant features might open a new route to propose original hollow-core fiber designs while making their production simpler and faster than previously.
authors.affiliation: Xlim-UMR 6172 Université de Limoges/CNRS, 123 avenue Albert Thomas, 87060 Limoges Cedex, France. gerome@xlim.fr
authors.forename: Frédéric
authors.initials: F
authors.lastname: Gérôme
authors.forename: Raphaël
authors.initials: R
authors.lastname: Jamier
authors.forename: Jean-Louis
authors.initials: JL
authors.lastname: Auguste
authors.forename: Georges
authors.initials: G
authors.lastname: Humbert
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Blondy