Empirical formulae for hollow-core antiresonant fibers: dispersion and effective mode area

TL;DR

This paper introduces empirical formulae to quickly estimate dispersion and effective mode area in hollow-core antiresonant fibers, enabling efficient design without extensive simulations.

Contribution

The paper provides validated empirical formulae based on structural parameters to predict guiding properties across a broad spectrum.

Findings

Formulae accurately match finite-element simulations

Changing antiresonant tube count affects guiding properties

Nested elements influence dispersion and mode area

Abstract

We present empirical formulae that can provide dispersion and average effective area of the fundamental mode in hollow-core antiresonant fibers. The formulae draw on the structural parameters of the fiber, and allow one to obtain the guiding properties over a wide spectral bandwidth, without the need for time consuming numerical simulations. The formulae are validated by comparing their results with those obtained using a finite-element method. We also analyze the effects of changing the number of antiresonant tubes, as well as adding nested elements in the antiresonant tubes on the guiding properties.