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Article Dans Une Revue Advanced Photonics Research Année : 2022

TIGER: TIme-Gated Electric field Reconstruction

F Billard
R Sharma
  • Fonction : Auteur
E Hertz
O Faucher
  • Fonction : Auteur

Résumé

We present a novel self-referenced method for the complete temporal characterization (phase and amplitude) of ultrashort optical laser pulses. The technique, called TIme-Gated Electric field Reconstruction (TIGER), measures a second-order nonlinear signal (namely, second harmonic generation or two-photon absorption) produced by four timedelayed replicas of the input pulse. The delays are spatially encoded in the beam profile using a four-faced pyramid-like optical element. The presented technique enables single shot measurement and does not require any spectral measurements, in contrast with well-known self-referenced characterization methods. Depending on the chosen geometry, the recorded TIGER signal can be either interferometric (i.e., carrier frequency resolved) or intensimetric. This paper describes the principle operation of the device together with a detailed theoretical analysis. TIGER measurements of various laser pulse shapes with their reconstructions are then presented demonstrating the relevance of this original approach.
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Dates et versions

hal-03557606 , version 1 (04-02-2022)

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  • HAL Id : hal-03557606 , version 1

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F Billard, R Sharma, E Hertz, O Faucher, P Béjot. TIGER: TIme-Gated Electric field Reconstruction. Advanced Photonics Research, 2022. ⟨hal-03557606⟩
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