Site-selective spectroscopy in dysprosium-doped chalcogenide glasses for 1.3µm optical fiber amplifiers

Abstract

Dy3+ -doped chalcogenide glasses are potential candidates for 1.3µm optical-fiber amplifiers. We describe spectroscopic characterization of Dy³⁺ -doped gallium lanthanum sulphide glasses with low and high oxide content. The spectroscopic investigations show that small amounts of oxide (1) in low-oxide-content sulphide glass create a second group of sites with a local environment different than that of the main sulphide sites. Dy³⁺ ions in the oxide site, which can constitute up to approximately one third of the total number of Dy³⁺ ions, experience a high-phonon-energy environment and do not show any 1.3µm emission and hence cannot provide gain for a potential 1.3µm optical-fiber amplifier in this material.

More information

Identifiers

ORCID for D.W. Hewak: orcid.org/0000-0002-2093-5773

ORCID for W.S. Brocklesby: orcid.org/0000-0002-2123-6712

Catalogue record

Export record

Altmetrics