title: Supercontinuum generation in ZBLAN glass photonic crystal fiber with six nanobore cores.
abstract: Photonic crystal fibers (PCFs) made from ZBLAN glass are of great interest for generating broadband supercontinua extending into the ultraviolet and mid-infrared regions. Precise sub-micrometer structuring makes it possible to adjust the modal dispersion over a wide range, making the generation of new frequencies more efficient. Here we report a novel ZBLAN PCF with six cores, each containing a central nanobore of a diameter ∼330  nm. Each nanobore core supports several guided modes, and the presence of the nanobore significantly modifies the dispersion, strongly influencing the dynamics and the extent of supercontinuum generation. Spectral broadening is observed when a single core is pumped in the fundamental and first higher order core modes with 200 fs long pulses at a wavelength of 1042 nm. Frequency-resolved optical gating is used to characterize the output pulses when pumping in the lowest order mode. The results are verified by numerical simulations.
authors.forename: Xin
authors.initials: X
authors.lastname: Jiang
authors.forename: Nicolas Y
authors.initials: NY
authors.lastname: Joly
authors.forename: Martin A
authors.initials: MA
authors.lastname: Finger
authors.forename: Fehim
authors.initials: F
authors.lastname: Babic
authors.forename: Meng
authors.initials: M
authors.lastname: Pang
authors.forename: Rafal
authors.initials: R
authors.lastname: Sopalla
authors.forename: Michael H
authors.initials: MH
authors.lastname: Frosz
authors.forename: Samuel
authors.initials: S
authors.lastname: Poulain
authors.forename: Marcel
authors.initials: M
authors.lastname: Poulain
authors.forename: Vincent
authors.initials: V
authors.lastname: Cardin
authors.forename: John C
authors.initials: JC
authors.lastname: Travers
authors.forename: Philip
authors.initials: P
authors.lastname: St J Russell