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For the first time we have suggested and realized passive Q-switched Yb-doped fiber laser with a saturable absorber based on Ho-doped fiber laser. The pulse duration was of 250 ns, the pulse energy – 70 μJ, the peak power – 300 W. The laser is perspective for technology processes. Possible ways of laser characteristics improving are discussed.
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Курков et al. (2008) studied this question.
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