Kalaycıoğlu, H.Akçaalan, Ö.Yavaş S.Eldeniz, Y. B.Ilday, F. Ö.2019-02-142019-02-1420150740-3224http://hdl.handle.net/11693/49558We report on the burst-mode operation of a polarization-maintaining Yb-doped multi-stage all-fiber amplifier capable of generating 10-pulse 100 ns long bursts of 400 μJ total energy. The corresponding average energy per pulse is 40 μJ, with a standard deviation of 16%. The 40 μJ pulses are compressible to a full width at half-maximum of 500 fs. The burst repetition rate is set to 1 kHz and the amplifier is synchronously pulse pumped to minimize amplified spontaneous emission (ASE) between the bursts. A special amplifier design has been developed to suppress ASE further at the cost of lower power efficiency. A detailed investigation of gain and ASE suppression performance of the amplifier in relation to pulsed pumping is presented.EnglishArticle10.1364/JOSAB.32.0009001520-8540