Peter Šušnjar (Author), Vid Agrež (Author), Rok Petkovšek (Author)

Abstract

Theoretical and experimental evaluation of the photodarkening effect as a heat source in ytterbium doped fibers is presented. An additional non-radiative decay channel that opens after photodarkening the fiber is identified via fluorescence lifetime reduction and as an additional heat source proportional to inversion. It is included in the heat source model which was tested on a core-pumped fiber amplifiers. High temperature elevation at low pump powers shows potential heat-related problems in high inversion systems that are more susceptible to photodarkening.

Keywords

fiber lasers;photodarkening;ytterbium fibers;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 535(045)
COBISS: 15925531 Link will open in a new window
ISSN: 1094-4087
Views: 1106
Downloads: 801
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: Slovenian
Secondary keywords: vlakenski laserji;foto potemnenje;iterbijeva vlakna;
Type (COBISS): Article
Pages: str. 6420-6426
Volume: ǂVol. ǂ26
Issue: ǂno. ǂ5
Chronology: 2018
DOI: 10.1364/OE.26.006420
ID: 10980577