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How to measure the amplitude and phase of an ultrashort light pulse with an autocorrelator and a spectrometer

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1 Author(s)
Paye, J. ; Res. Lab. of Electron., MIT, Cambridge, MA, USA

The measurement of the spectrum of the output of an autocorrelator is proven to be sufficient for a complete determination of the complex electric field of an ultrashort light pulse, both in amplitude and phase, except for the time-reversal ambiguity which can be easily overcome in experiments. An iterative algorithm is proposed to retrieve the complex electric held from the experimental data. A numerical simulation proves the remarkable reliability and efficiency of the method. An experimental demonstration shows the simplicity of this technique

Published in:

Quantum Electronics, IEEE Journal of  (Volume:30 ,  Issue: 11 )