%0 Journal Article
%A Martínez Matos, Óscar
%A Rodrigo Martín-Romo, José Augusto
%A Hernández Garay, María de la Paz
%A Izquierdo González, Jesús
%A Weigand Talavera, Rosa María
%A Calvo Padilla, María Luisa
%A Cheben, Pavel
%A Vaveliuk, Pablo
%A Bañares Morcillo, Luis
%T Generation of femtosecond paraxial beams with arbitrary spatial distribution
%D 2010
%@ 0146-9592
%U https://hdl.handle.net/20.500.14352/44157
%X We present an approach to generate paraxial laser beams with arbitrary spatial distribution in the femtosecond time regime. The proposed technique is based upon a pair of volume phase holographic gratings working in parallel arrangement. It exploits the spatial coherence properties of the incoming laser beam in a compact and robust setup that mitigates angular and spatial chirp. The gratings were recorded in a photopolymerizable glass with a high optical damage threshold and a large optical throughput. Setup performance is studied and experimentally demonstrated by generating Laguerre-Gaussian femtosecond pulses.
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