We discuss a modified femtosecond pulse shaper that uses microlens arrays to convert the continuous band of frequencies normally obtained in the mask plane of a pulse shaper into a series of discrete spots. Our experiments demonstrate that this modification can improve pulse-shaping quality when modulator arrays with large interpixel gaps are used for Fourier-plane filtering.
© 1996 Optical Society of America
Original Manuscript: November 28, 1995
Published: June 1, 1996
K. M. Mahoney and A. M. Weiner, "Modified femtosecond pulse shaper using microlens arrays," Opt. Lett. 21, 812-814 (1996)