Ultra-large bandwidth hollow-core guiding in all-silica Bragg fibers with nano-supports.
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.
Vienne
Guillaume
G
Xu
Yong
Y
Jakobsen
Christian
C
Deyerl
Hans-Jurgen
HJ
Jensen
Jesper
J
Sorensen
Thorkild
T
Hansen
Theis
T
Huang
Yanyi
Y
Terrel
Matthew
M
Lee
Reginald
R
Mortensen
Niels
N
Broeng
Jes
J
Simonsen
Harald
H
Bjarklev
Anders
A
Yariv
Amnon
A