Regular modes of a mixed dynamical based optical fiber

TL;DR

This paper investigates regular modes in a multimode optical fiber with mixed ray dynamics, revealing enhanced localization and Anderson-like statistics through numerical and experimental analysis.

Contribution

It introduces the study of regular modes in a mixed dynamical optical fiber, highlighting their properties and unexpected statistical features.

Findings

Enhanced intensity localization in regular modes

Statistics of Inverse Participation Ratio similar to Anderson localization

Supported by numerical and experimental evidence

Abstract

A multimode optical fiber with a truncated transverse cross section acts as a powerful versatile support to investigate the wave features of complex ray dynamics. In this paper, we concentrate on the case of a geometry inducing a mixed dynamics. We highlight the properties of regular modes associated to stable periodic orbits such as an enhanced intensity localization and report unexpected attributes such as the statistics of the Inverse Participation Ratio that present features analogous to those of Anderson localized modes. Our study is supported by both numerical and experimental results.