Luminescent Ions in Silica-Based Optical Fibers

TL;DR

This paper explores the spectral properties of luminescent ions in silica-based optical fibers, focusing on how the local environment influences their behavior for photonics applications.

Contribution

It provides a comprehensive analysis of how local environments affect dopant ions, including energy transfer, valence control, and emission broadening in silica fibers.

Findings

Energy transfer mechanisms between rare-earth ions elucidated

Control of chromium ion valence states achieved

Emission broadening linked to oxide nanoparticle presence

Abstract

We present some of our research activities dedicated to doped silica-based optical fibers, aiming at understanding the spectral properties of luminescent ions, such as rare-earth and transition metal elements. The influence of the local environment on dopants is extensively studied: energy transfer mechanisms between rare-earth ions, control of the valence state of chromium ions, effect of the local phonon energy on thulium ions emission efficiency, and broadening of erbium ions emission induced by oxide nanoparticles. Knowledge of these effects is essential for photonics applications.