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Spectroscopic characterization of holmium-doped optical fibers for fiber lasers
Author(s): M. Kamrádek; J. Aubrecht; P. Peterka; O. Podrazký; P. Honzátko; J. Cajzl; J. Mrázek; V. Kubeček; I. Kašík
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Paper Abstract

We present the preparation and characterization of holmium-doped silica-based optical fibers for fiber lasers operating around two micrometers. The fibers were prepared by a modified chemical vapor deposition process and co-doped with aluminum oxide. Alumina was doped with the use of two different methods – solution doping and nanoparticle doping. Prepared optical preforms and fibers were characterized according to their optical, spectral and laser properties. It was observed that the doping by alumina nanoparticles improve a fluorescence lifetime and laser characteristics such as laser threshold and slope efficiency. The comparison of both doping methods is presented and results are discussed.

Paper Details

Date Published: 16 April 2019
PDF: 6 pages
Proc. SPIE 11029, Micro-structured and Specialty Optical Fibres VI, 1102908 (16 April 2019); doi: 10.1117/12.2520880
Show Author Affiliations
M. Kamrádek, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)
J. Aubrecht, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)
P. Peterka, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)
O. Podrazký, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)
P. Honzátko, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)
J. Cajzl, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)
J. Mrázek, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)
V. Kubeček, Czech Technical Univ. in Prague (Czech Republic)
I. Kašík, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 11029:
Micro-structured and Specialty Optical Fibres VI
Kyriacos Kalli; Alexis Mendez; Pavel Peterka, Editor(s)

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