Open AccessA simple analytical model for confinement loss estimation in hollow-core Tube Lattice Fibers
Author(s) -
Luca Vincetti,
Lorenzo Rosa
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.005230
Subject(s) - optics , lattice (music) , materials science , tube (container) , dielectric , refractive index , coupling (piping) , mechanics , physics , acoustics , optoelectronics , composite material
In this work, we propose an analytical model for estimating confinement loss in Tube Lattice Fibers. It is based on the single-tube model and the inhibited coupling waveguiding mechanism. The comparison with numerical simulations of tube lattice fibers having different geometrical parameters and dielectric refractive indexes demonstrates the model validity and effectiveness. Being based only on analytical closed formulas, it constitutes a useful tool for rapid estimation of TLF CL. It also gives a more in-depth insight into the TLF guiding mechanisms, confirming the inhibited coupling is an appropriate and effective model for such kind of fibers.