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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| Authors: | J E Hellström G Karlsson V Pasiskevicius F Laurell B Denker S Sverchkov B Galagan L Ivleva |
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| Institution: | (1) Department of Physics, Royal Institute of Technology, 10044 Stockholm, Sweden;(2) General Physics Institute, Vavilova Str. 38, 119 991 Moscow, Russia |
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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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| Keywords: | 42 55 Xi 42 70 Hj |
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