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Generating 3-μm radiation in YAG:Er crystals with resonance excitation of activator ions to a lower laser level

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Abstract

A pulse laser on a phosphate glass activated by Cr3+-Yb3+-Er3+ ions (λ = 1.54 μm) was used to pump Y2Al5O12:Er3+ (YAG:Er) crystals to the lower laser level of a 3-μm transition (4I11/2 → 4I13/2) in Er3+ ions (λ = 2.94 μm). For a pumping pulse energy of E exc = 200 mJ, the efficiency of 3-μm lasing was 20%. A differential efficiency of the YAG:Er laser in the case of a resonance pumping into the lower laser level amounted to 26%.

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Authors and Affiliations

  1. Prokhorov Institute of General Physics, Russian Academy of Sciences, Moscow, 117924, Russia

    V. P. Danilov, B. I. Denker, V. I. Zhekov, D. I. Murin, T. M. Murina, S. V. Sverchkov & M. I. Studenikin

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  1. V. P. Danilov
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  2. B. I. Denker
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  3. V. I. Zhekov
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  4. D. I. Murin
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  5. T. M. Murina
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  6. S. V. Sverchkov
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  7. M. I. Studenikin
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Additional information

Original Russian Text © V.P. Danilov, B.I. Denker, V.I. Zhekov, D.I. Murin, T.M. Murina, S.V. Sverchkov, M.I. Studenikin, 2006, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2006, Vol. 32, No. 4, pp. 40–44.

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Danilov, V.P., Denker, B.I., Zhekov, V.I. et al. Generating 3-μm radiation in YAG:Er crystals with resonance excitation of activator ions to a lower laser level. Tech. Phys. Lett. 32, 156–157 (2006). https://doi.org/10.1134/S1063785006020210

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  • DOI: https://doi.org/10.1134/S1063785006020210

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