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Opt Express. 2012 Aug 13;20(17):18732-43. doi: 10.1364/OE.20.018732.

Characterization of broadband few-cycle laser pulses with the d-scan technique.

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  • 1IFIMUP-IN and Departamento de FĂ­sica e Astronomia, Universidade do Porto, Porto, Portugal.


We present an analysis and demonstration of few-cycle ultrashort laser pulse characterization using second-harmonic dispersion scans and numerical phase retrieval algorithms. The sensitivity and robustness of this technique with respect to noise, measurement bandwidth and complexity of the measured pulses is discussed through numerical examples and experimental results. Using this technique, we successfully demonstrate the characterization of few-cycle pulses with complex and structured spectra generated from a broadband ultrafast laser oscillator and a high-energy hollow fiber compressor.

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