We report femtosecond time-to-space transformation by means of a potassium niobate nonlinear optical crystal inside a femtosecond pulse shaper. We achieve an upconversion efficiency higher than 50%, a more than 500-fold increase as compared with previous results. We also present theoretical guidelines for estimating the efficiency of such time-to-space converters.
© 1998 Optical Society of America
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(320.7100) Ultrafast optics : Ultrafast measurements
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(320.7160) Ultrafast optics : Ultrafast technology
Ayman M. Kan'an and A. M. Weiner, "Efficient time-to-space conversion of femtosecond optical pulses," J. Opt. Soc. Am. B 15, 1242-1245 (1998)