Yb3+- Doped CaF2 cubic fluoride crystal: Spectroscopic properties, concentration quenching analysis and laser optimization

G. Boulon, M. Ito, Y. Guyot, C. Goutaudier, A. Brenier, A. Jouini, Hiroki Sato, T. Fukuda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The ytterbium-doped crystals emitting around 1 μm under laser-diode pumping between 900-980 nm have received an increasing interest in recent years as solid-state laser materials for high power or ultra-fast lasers. In this paper, our main objective is to contribute to Yb3+ -doped fluorides mainly on CaF2 cubic host which are characterized by a high value of the thermal conductivity (9.5 W m-1 K-1) as high as YAG. Yb3+-doped CaF2, mono-doped and concentration gradient fibres were grown by both, the laser heated pedestal growth (LHPG) method and by the Czochralski method. Concerning Yb3+ excited state dynamics, the concentration dependence of the 2F5/2 decay time shows a competition between self-trapping and self-quenching processes. Main parameters useful for a theoretical approach of laser potentiality will be given and laser emission under InGaAs laser-diode pumping will be shown.

Original languageEnglish
Title of host publicationROMOPTO 2006
Subtitle of host publicationEighth Conference on Optics
DOIs
Publication statusPublished - 2007 Nov 27
EventROMOPTO 2006: Eighth Conference on Optics - Sibiu, Romania
Duration: 2006 Sep 42006 Sep 7

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6785
ISSN (Print)0277-786X

Conference

ConferenceROMOPTO 2006: Eighth Conference on Optics
CountryRomania
CitySibiu
Period06/9/406/9/7

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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