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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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