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Transverse cross-correlation scheme for pulse shape measurement in random nonlinear crystals
Cojocaru, Crina; Wang, Bingxia; Trull Silvestre, José Francisco
Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. DONLL - Dinàmica no lineal, òptica no lineal i làsers
We present a novel single-shot cross-correlation scheme based on the measurement of the transverse second harmonic generation (TSHG) in crystals with randomly distributed nonlinear ferroelectric domains. We implement it to the measurement of the temporal shape of ultrashort laser pulses with unknown temporal profile. This technique combines the capability of typical intensity cross-correlation methods in pulse shape measurement with the advantages of the TSHG and ca be applied to a wide range of pulse durations and wavelength, without any requirement of angular alignment or temperature control.
Peer Reviewed
Àrees temàtiques de la UPC::Física
Nonlinear optics
Correlation methods
Fiber optic networks
Harmonic generation
Nonlinear optics
Ultrashort pulses
Cross correlation methods
Cross correlations
Ferroelectric domains
Nonlinear crystals
Nonlinear materials
Pulse shape measurements
Randomly distributed
Ultrashort pulse measurement
Òptica no lineal
Institute of Electrical and Electronics Engineers (IEEE)

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