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Generation of femtosecond paraxial beams with arbitrary spatial distribution

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Martínez Matos, Óscar and Rodrigo Martín-Romo, José Augusto and Hernández Garay, María de la Paz and Izquierdo González, Jesús and Weigand Talavera, Rosa María and Calvo Padilla, María Luisa and Cheben, Pavel and Vaveliuk, Pablo and Bañares Morcillo, Luis (2010) Generation of femtosecond paraxial beams with arbitrary spatial distribution. Optics Letters, 35 (5). pp. 652-654. ISSN 0146-9592

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Official URL: http://dx.doi.org/10.1364/OL.35.000652


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Abstract

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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© 2010 Optical Society of America.
We thank Fransisco del Monte for valuable advice and CAI-UCM facilities. The financial support from the Spanish Ministry of Science and Innovation under projects TEC 2008-04105, CTQ2008-02578/BQU and Consolider SAUUL CSD2007-00013 is acknowledged. M. P. H.-G. and P. V. acknowledge the Spanish Ministry of Foreign Affairs and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (Brazil) for financial support, respectively.

Uncontrolled Keywords:Dispersion Compensation, Pulses, Vortices
Subjects:Sciences > Physics > Optics
ID Code:25152
Deposited On:24 Apr 2014 08:13
Last Modified:24 Apr 2014 08:13

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