Ultrashort laser pulse diffraction by transmitting volume Bragg gratings in photo-thermo-refractive glass
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en
Article de revue
Ce document a été publié dans
Optics Letters. 2009-09-01, vol. 34, n° 17, p. 2572-2574
Optical Society of America - OSA Publishing
Résumé en anglais
We report on the characteristics of ultrashort laser pulse diffraction by transmitting volume Bragg gratings recorded in photo-thermo-refractive glass. The angular and spectral selectivity properties of these phase volume ...Lire la suite >
We report on the characteristics of ultrashort laser pulse diffraction by transmitting volume Bragg gratings recorded in photo-thermo-refractive glass. The angular and spectral selectivity properties of these phase volume gratings are shown to obey the predictions of a modified Kogelnik's coupled wave analysis that accounts for polychromatic beams. Spatio-temporal distortions such as angular dispersion and pulse front tilt that occur after diffraction by a single volume grating are studied and corrected by using a volume grating pair. The angular filtering properties of volume gratings offer potential as spatial filtering elements inside ultrafast laser cavities.< Réduire
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