Ultrashort laser pulse diffraction by transmitting volume Bragg gratings in photo-thermo-refractive glass.
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.
Siiman
Leo A
LA
CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA.
Lumeau
Julien
J
Canioni
Lionel
L
Glebov
Leonid B
LB