The generation of tailored femtosecond pulses with fully engineered intensity and phase profiles is demonstrated using second-harmonic generation of an Er:fiber laser in an aperiodically poled lithium niobate crystal in the undepleted pump regime. Second-harmonic pulse shapes, including Gaussian, stepped, square, and multiple pulses have been characterized using cross-correlation frequency-resolved optical gating and have been shown to agree well with theory.
© 2008 Optical Society of America
Original Manuscript: November 21, 2007
Revised Manuscript: January 10, 2008
Manuscript Accepted: January 10, 2008
Published: February 14, 2008
Łukasz Kornaszewski, Markus Kohler, Usman K. Sapaev, and Derryck T. Reid, "Designer femtosecond pulse shaping using grating-engineered quasi-phase-matching in lithium niobate," Opt. Lett. 33, 378-380 (2008)