Ultra-large bandwidth hollow-core guiding in all-silica Bragg fibers with nano-supports
arXiv:physics/0407104 · doi:10.1364/OPEX.12.003500
Abstract
We demonstrate a new class of hollow-core Bragg fibers that are composed of concentric cylindrical silica rings separated by nanoscale support bridges. We theoretically predict and experimentally observe hollow-core confinement over an octave frequency range. The bandwidth of bandgap guiding in this new class of Bragg fibers exceeds that of other hollow-core fibers reported in the literature. With only three rings of silica cladding layers, these Bragg fibers achieve propagation loss of the order of 1 dB/m.
9 pages including 5 figures