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
M. Hemmer, A. Thai, M. Baudisch, H. Ishizuki, T. Taira, and J. Biegert, "18-<i>µ</i>J energy, 160-kHz repetition rate, 250-MW peak power mid-IR OPCPA," Chin. Opt. Lett. 11, 013202- (2013)