Ultra-large bandwidth hollow-core guiding in all-silica Bragg fibers with nano-supports

Details Ultra-large bandwidth hollow-core guiding in all-silica Bragg fibers with nano-supports Ultra-large bandwidth hollow-core guiding in all-silica Bragg fibers with nano-supports

2004-07-20

arxiv.org/abs/physics/0407104v1

Opt. Express 12, 3500 (2004).

Physics

Optics

9 pages including 5 figures

Scientific paper

10.1364/OPEX.12.003500

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.

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