We report on the pulse compression of an 18.5 MHz repetition rate pulse train from 230 fs to sub-40 fs by nonlinear spectral broadening in a multi-pass cell and subsequent chirp removal. The compressed pulse energy is 4.5 μJ, which corresponds to 84 W of average power, with a compression efficiency of 88%. This recently introduced compression scheme is suitable for a large pulse energy range and for high average power. In this paper, we show that it can achieve three times shorter pulses than previously demonstrated.
https://www.nuclock.eu/wp-content/uploads/2015/07/nuclock-color-300x77.png 0 0 Simon Stellmer https://www.nuclock.eu/wp-content/uploads/2015/07/nuclock-color-300x77.png Simon Stellmer2017-11-10 23:24:552017-11-10 23:24:55Nonlinear Pulse Compression to Sub-40 fs at 4.5 μJ Pulse Energy by Multi-Pass-Cell Spectral Broadening