Measurement of ultrashort laser pulses using frequency-resolved optical gating
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Department of Physics, College of Science, Taiyuan University of Technology, Taiyuan 030024, China
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Received Date:
2007-02-02
Accepted Date:
2007-03-09
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Abstract
For the sake of studying second-harmonic generation(SHG) and polarization gating(PG) frequency-resolved optical gating(FROG),both techniques measuring the intensity and phase of ultrashort laser pulses,SHG-FROG and PG-FROG traces of several types of common ultrashort pulses were numerically simulated using a matrix approach.Taking SHG-FROG as an example,the amplitude and the phase of these pulses were gleaned from these SHG-FROG traces by the principal component generalized projections algorithm and the SHG-FROG error was less than 10-4.The results show that FROG can accurately measure ultrashort laser pulses.
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