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Passive Q-switching at 1.54 μm of an Er–Yb: GdCa4O(BO3)3 laser with a Co2+: MgAl2O4 saturable absorber

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Abstract

We report, for the first time to our knowledge, efficient passive Q-switching of the 1.54-μm laser transition in an Er–Yb-doped crystalline medium. The laser configuration is a compact microchip design that is suitable for a range of practical applications such as range finding and lidar. The slope efficiency of 11.6%, pulse duration of 5–6 ns and average output power of 88 mW are all comparable with standard Er–Yb:glass lasers.

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Authors and Affiliations

  1. Department of Physics, Royal Institute of Technology, 10044, Stockholm, Sweden

    J. E. Hellström, G. Karlsson, V. Pasiskevicius & F. Laurell

  2. General Physics Institute, Vavilova Str. 38, 119 991, Moscow, Russia

    B. Denker, S. Sverchkov, B. Galagan & L. Ivleva

Authors
  1. J. E. Hellström
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  2. G. Karlsson
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  3. V. Pasiskevicius
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  4. F. Laurell
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  5. B. Denker
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  6. S. Sverchkov
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  7. B. Galagan
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  8. L. Ivleva
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Correspondence to J. E. Hellström.

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Hellström, J.E., Karlsson, G., Pasiskevicius, V. et al. Passive Q-switching at 1.54 μm of an Er–Yb: GdCa4O(BO3)3 laser with a Co2+: MgAl2O4 saturable absorber. Appl. Phys. B 81, 49–52 (2005). https://doi.org/10.1007/s00340-005-1832-3

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  • DOI: https://doi.org/10.1007/s00340-005-1832-3

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