title: Aircore microstructure fibers with suppressed higher-order modes.
abstract: A strategy for suppressing higher-order modes in aircore bandgap fibers is proposed. Simulations confirm that significant suppression of unwanted modes is achieved by including index-matched air-guiding structures in the cladding. Suppressing higher-order modes offers to improve the fundamental loss limit in aircore fibers, addressing a key obstacle to the development of this technology.
authors.forename: John M
authors.initials: JM
authors.lastname: Fini