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LiGdF4:Tm3+: spectroscopy and diode-pumped laser experiments

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Abstract

A novel LiGdF4 crystal doped with Thulium ions has been grown using the Czochralski technique. Three samples with doping concentrations of 0.3 at.%, 8 at.%, and 12 at.% have been extensively spectroscopically analyzed. We also performed room-temperature preliminary laser experiments, pumping the samples with a laser diode at 792 nm obtaining 53% as maximum slope efficiency with a maximum output power of 205 mW and a minimum lasing threshold of 22 mW. The laser emission spectrum in free running condition typically spans between 1990 and 2018 nm.

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Authors and Affiliations

  1. NEST-CNR-NFM, Dipartimento di Fisica, Università di Pisa, Largo B. Pontecorvo, 3, 56127, Pisa, Italy

    F. Cornacchia, A. Di Lieto & M. Tonelli

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  1. F. Cornacchia
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  2. A. Di Lieto
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  3. M. Tonelli
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Correspondence to F. Cornacchia.

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Cornacchia, F., Di Lieto, A. & Tonelli, M. LiGdF4:Tm3+: spectroscopy and diode-pumped laser experiments. Appl. Phys. B 96, 363–368 (2009). https://doi.org/10.1007/s00340-009-3555-3

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  • DOI: https://doi.org/10.1007/s00340-009-3555-3

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