Abstract
A new method to obtain the auto-correlation of an ultrafast light pulse spatially and parallel is proposed. The method is based on a conventional optical computing technique, joint transform correlator, and a spectral filtering method to control ultrafast light pulses temporally. A simple experimental determination of the pulse-separation of twin pulses, is demonstrated. In the experiment, the optically addressable spatial light modulator is used as a spectrum-power spectrum conversion device, and the temporal accuracy of the system is 12.4 fs.
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