High-repetition-rate sub-5-fs pulses with 12 GW peak power from fiber-amplifier-pumped optical parametric chirped-pulse amplification

Abstract

An optical parametric chirped-pulse amplification system delivering pulses with more than $12\mathrm{GW}$ peak power is presented. Compression to sub-$5\mathrm{fs}$, $87\mathrm{\mu J}$ and $5.4\mathrm{fs}$, $100\mathrm{\mu J}$ is realized at the $30\mathrm{kHz}$ repetition rate. A high-energy fiber chirped-pulse amplification system operating at $1\mathrm{mJ}$ pulse energy and nearly transform-limited pulses is used to achieve ultrabroadband amplification in two $2\mathrm{mm}$ beta-barium borate crystals. Precise pulse shaping is used to compress the pulses to a few percentages of their transform limit. Assuming diffraction limited focusing ($d<2\mathrm{\mu m}$), peak intensities as high as ${10}^{18}\mathrm{W}/{\mathrm{cm}}^2$ can be reached.

© 2011 Optical Society of America

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