Abstract
We present an ytterbium-doped fiber master oscillator power amplifier which has a repetition rate tunability from 1 kHz to 10 MHz. The repetition rate is successfully controlled by a semiconductor optical amplifier driven in pulsed mode. The system consists of two stages of pre-amplifiers and a double-clad fiber amplifier. The output power reaches >4.7 W for various repetition rates.
© 2016 Optical Society of America
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