Generation of sub-10-fs pulses with an average power of 1 W and a peak of 1.5 MW from a Kerr-lens mode-locked mirror-dispersion-controlled Ti:sapphire laser is demonstrated. A specially designed lens triplet focuses the output of this compact all-solid-state source to a peak intensity in excess of 5×10<sup>13</sup> W/cm <sup>2</sup> . Nonperturbative nonlinear optics is now becoming feasible by use of the output of a cw mode-locked laser.
© 1998 Optical Society of America
L. Xu, G. Tempea, Ch. Spielmann, F. Krausz, A. Stingl, K. Ferencz, and S. Takano, "Continuous-wave mode-locked Ti:sapphire laser focusable to 5 × 1013 W/cm2," Opt. Lett. 23, 789-791 (1998)