title: Fiber amplification of pulse bursts up to 20 μJ pulse energy at 1 kHz repetition rate.
abstract: We demonstrate burst-mode operation of a polarization-maintaining Yb-doped fiber amplifier. Groups of pulses with a temporal spacing of 10 ns and 1 kHz overall repetition rate are amplified to an average pulse energy of ∼20 μJ and total burst energy of 0.25 mJ. The pulses are externally compressed to ∼400 fs. The amplifier is synchronously pulsed-pumped to minimize amplified spontaneous emission between the bursts. We characterize the influence of pump pulse duration, pump-to-signal delay, and signal burst length.
authors: Department of Physics, Bilkent University, Ankara, Turkey. hamitkal@bilkent.edu.tr
authors: H
authors: H
authors: Kalaycioglu
authors: K
authors: K
authors: Eken
authors: F Ö
authors: FÖ
authors: Ilday