High-resolution indirect pulse shaping by parametric transfer.

The phase and amplitude profile of a shaped pulse in the visible is transferred to a pulse in the near-infrared via an optical parametric amplification (OPA) process. Complex shaped pulses, such as multiple-pulse trains and pulses with high-order phase chirp, are produced at 1.2mum . Theoretical conditions necessary for high-fidelity parametric shape transfer are discussed. Similar schemes can be implemented for other OPA systems pumped at near-infrared wavelengths to generate high-resolution shaped pulses in the mid-infrared.