Abstract
Progresses on the development of a high repetition rate mid-IR laser source suitable for
the next generation of high-field physics experiments are reported. The presented optical parametric
chirped pulse amplification (OPCPA) source currently delivers carrier-envelope phase (CEP)-stable
67-fs duration optical pulses with up to 18-<i>µ</i>J output energy at 160-kHz repetition rate. The
focusability of the output beam (M<sup>2</sup>~2) enables peak intensities exceeding 10<sup>14</sup> W/cm<sup>2</sup> and the record
output energy stability-below 1% power fluctuation over 4.5 h makes this source a key enabler for
the strong field physics community.
© 2013 Chinese Optics Letters
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