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Tunable room-temperature cw laser action in Cr3+: GdScGa-Garnet

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Abstract

We report for the first time on tunable room temperature cw laser action of a transition metal laser material. In Cr3+:GdScGa-garnet crystals almost the total fluorescence is channelled into the broad band4 T 2→4 A 2 transition. The fluorescence lifetime is τ=120 μs. Laser pumping in the blue-green and yellow-red spectral range yields pump thresholds around 250 mW and slope efficiencies up to 11%. The wavelength of the free running Cr3+ laser is centered at 777 nm.

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Authors and Affiliations

  1. Institut für Angewandte Physik, Universität, Jungiusstrasse 11, D-2000, Hamburg 36, Germany

    B. Struve & G. Huber

  2. P. N. Lebedev Institute, Leninski prospect 53, SU-117924, Moscow, USSR

    V. V. Laptev, I. A. Shcherbakov & E. V. Zharikov

Authors
  1. B. Struve
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  2. G. Huber
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  3. V. V. Laptev
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  4. I. A. Shcherbakov
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  5. E. V. Zharikov
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Struve, B., Huber, G., Laptev, V.V. et al. Tunable room-temperature cw laser action in Cr3+: GdScGa-Garnet. Appl. Phys. B 30, 117–120 (1983). https://doi.org/10.1007/BF00695465

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  • DOI: https://doi.org/10.1007/BF00695465

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