Article Dans Une Revue Applied Physics Letters Année : 2025

Temporal pulse shaping technique for nonlinear frequency shifting

G. Parize
M. Natile
F. Guichard
A. Comby
Marc Hanna
P. Georges

Résumé

We present a spectral phase-only shaping technique allowing to generate arbitrary temporal shapes and demonstrate its use for ultrafast ytterbium-based laser sources. This technique is based on the introduction of a nonlinear chirp that is determined solely by the input spectral intensity and the target temporal intensity. We describe its working principle and experimentally demonstrate the generation of triangle-shaped pulses at the output of a laser source, which delivers 150 μ J, sub-200 fs pulses at 150 kHz. These pulses are then passed through a nonlinear multipass cell to observe wavelength shifting via self-phase modulation. A spectral tunabibility of 14 nm is achieved around the input central wavelength of 1034 nm.

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Dates et versions

hal-04989885 , version 1 (13-03-2025)

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G. Parize, M. Natile, F. Guichard, A. Comby, Marc Hanna, et al.. Temporal pulse shaping technique for nonlinear frequency shifting. Applied Physics Letters, In press, 126 (10), ⟨10.1063/5.0254035⟩. ⟨hal-04989885⟩
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