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11 March 2016 Switchable dual-pulse-shape mode-locked figure-eight all-PM fibre master oscillator with 0.5 W-level average output
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Abstract
For the first time a method for switching between generation of single- and double-scale pulses has been demonstrated in a mode-locked figure-eight NALM-based all-PM-fibre Yb master oscillator by adjustment of two pumps power. Introduction into a F8 configuration of a non-linear amplifying loop mirror with two active media not only ensured relatively high average output power of the master oscillator (> 0.5 W at 22-MHz repetition rate), but also allowed switching laser operation from one pulse type (single-scale with duration of <10 ps) to another - femtosecond clusters with envelope width of 16 ps and sub-pulse duration <200 fs.
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Sergey Kobtsev, Aleksey Ivanenko, Yurii Fedotov, Sergey V. Smirnov, Artur Golubtsov, and Sergey Khripunov "Switchable dual-pulse-shape mode-locked figure-eight all-PM fibre master oscillator with 0.5 W-level average output", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 97281M (11 March 2016); https://doi.org/10.1117/12.2211462
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