Spatio-temporal characterization of mid-infrared laser pulses with spatially encoded spectral shearing interferometry

Abstract: We report on the spatially resolved full amplitude and phase characterization of mid-infrared high intensity laser pulses generated in a three stage OPA. We use a spatially-encoded arrangement (SEA-)SPIDER with spectral filters for ancilla generation for spatially resolved characterization. Using five interchangeable filter sets we are able to characterize pulses from 1 to 2{\mu}m with one single device with minimal adjustments.