Systems and methods for characterizing laser pulses

A laser diagnostic device comprising:

• a beamsplitter configured to receive one or more input pulses and split the one or more input pulses into one or more fundamental pulses and one or more perturbation pulses, the one or more fundamental pulses having a higher power than the one or more perturbation pulses;
• one or more beam-combining optics to combine the one or more fundamental pulses and the one or more perturbation pulses at a detection plane;
• a detector including a solid-state material located at the detection plane;
• and
• a controller including one or more processors configured to execute program instructions causing the one or more processors to:
• receive a detector signal from the detector, wherein the detector signal is indicative of non-linear absorption in a solid-state medium of the one or more fundamental pulses that is perturbed by the one or more perturbation pulses;
• extract a temporal electric field profile of the one or more input pulses from the detector signal;
• and
• provide one or more output measurements, wherein the one or more output measurements include at least one of the temporal electric field profile of the one or more input pulses, a spectrum of the one or more input pulses derived from the temporal electric field profile, or a spectral phase of the one or more input pulses derived from the temporal electric field profile.