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Journal Articles Optics Letters Year : 2008

Highly efficient nonlinear filter for femtosecond pulse contrast enhancement and pulse shortening

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Abstract

We propose a highly efficient scheme for temporal filters devoted to femtosecond pulse contrast enhancement. The filter is based on cross-polarized wave generation with a spatially suger-Gaussian-shaped beam. In a single nonlinear crystal scheme the energy conversion to the cross-polarized pulse can reach 28%. We demonstrate that the process enables a significant spectral broadening. For an efficiency of 23% the pulse shortening is estimated to 2.2, leading to an intensity transmission of the nonlinear filter of 50%.
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Dates and versions

hal-00528426 , version 1 (21-10-2010)

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Aurélie Jullien, Jean-Philippe Rousseau, Brigitte Mercier, Laura Antonucci, Olivier Albert, et al.. Highly efficient nonlinear filter for femtosecond pulse contrast enhancement and pulse shortening. Optics Letters, 2008, 33 (20), pp.2353-2355. ⟨10.1364/OL.33.002353⟩. ⟨hal-00528426⟩
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