In line Yb fiber master oscillator power amplifier generating stretched 20 nJ pulses with up to 140 kW peak power

摘要

The generation of stretched 20 μJ pulses with 140 kW peak and 4 W average power is demonstrated in an in-line Yb fiber master oscillator power amplifier at a repetition rate of 200 kHz. The pulses are compressible down to 320 fs.