Method for investigation of mode coupling in multimode step-index silica photonic crystal fibers

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

View graph of relations

Author(s)

  • Svetislav Savović
  • Milan S. Kovačević
  • Ana Simović
  • Ljubica Kuzmanović
  • Branko Drljača

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number167728
Journal / PublicationOptik
Volume246
Online published30 Jul 2021
Publication statusPublished - Nov 2021

Abstract

We propose a new method for investigation the state of mode coupling in a multimode step-index silica photonic crystal fiber (SI SPCF) with a solid-core by solving the time-independent power flow equation. For various arrangements of air-holes (different numerical apertures (NAs)), as well as a different widths of launch beam distribution, the length Lc for achieving equilibrium mode distribution (EMD) and length zs at which a steady state distribution (SSD) is established are determined for such fiber. We obtained that the larger the air holes in the cladding (higher NA), the longer length of the fiber it takes for the modal distribution-transients to reach their equilibrium and steady state. In the case of a wide launch that excites more guiding modes, these lengths shorten. Such information is of interest for application of multimode SI SPCFs in telecommunication and fiber optic sensors.

Research Area(s)

  • Coupling lengths, Photonic crystal fiber, Power flow equation, Step-index fiber

Citation Format(s)

Method for investigation of mode coupling in multimode step-index silica photonic crystal fibers. / Savović, Svetislav; Kovačević, Milan S.; Simović, Ana; Kuzmanović, Ljubica; Drljača, Branko; Djordjevich, Alexandar.

In: Optik, Vol. 246, 167728, 11.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review