A novel path to achieving self-similar pulses in an all-normal-dispersion solid-state laser resonator is presented and numerically examined. The spatially asymptotic self-similar solution to the nonlinear Schrödinger equation with gain is approached over many cavity round trips and the resultant steady-state solution, stabilized with a saturable absorber possessing a nearly rectangular power response profile, displays minimal spectral, temporal, and amplitude breathing. This method simplifies cavity construction and allows for a more than thirtyfold increase in pulse energy when compared to dispersion-managed soliton mode-locking schemes. A path to directly generable microJoule femtosecond pulses is identified.
© 2012 Optical Society of America
Original Manuscript: May 22, 2012
Manuscript Accepted: September 5, 2012
Published: October 11, 2012
Victor G. Bucklew and Clifford R. Pollock, "Realizing self-similar pulses in solid-state laser systems," J. Opt. Soc. Am. B 29, 3027-3033 (2012)