Limits in high-energy laser pulse compression using gas-filled fibres

João L. Silva; Helder Crespo; Miguel Miranda; Luís M. Bernardo

doi:10.1117/12.662884

17 April 2006 Limits in high-energy laser pulse compression using gas-filled fibres

João L. Silva, Helder Crespo, Miguel Miranda, Luís M. Bernardo

Proceedings Volume 6190, Solid State Lasers and Amplifiers II; 619010 (2006) https://doi.org/10.1117/12.662884
Event: SPIE Photonics Europe, 2006, Strasbourg, France

Abstract

The production of high-energy ultra-short laser pulses in gas-filled hollow fibres is now a well-established technique. Below a specific critical power, the smoothness of spatial and temporal profiles of input pulses is not perturbed during propagation. However, gas ionization and pulse filamentation occur above that critical power strongly disrupting the pulse profiles. Both propagation regimes in argon are numerically studied for two different propagation configurations: free gas and gas filled hollow fibre. Below critical power it is shown the pulse is spectrally broadened while maintaining smooth temporal and spatial profiles. Otherwise, these quantities show strong variations.

Citation Download Citation

João L. Silva, Helder Crespo, Miguel Miranda, and Luís M. Bernardo "Limits in high-energy laser pulse compression using gas-filled fibres", Proc. SPIE 6190, Solid State Lasers and Amplifiers II, 619010 (17 April 2006); https://doi.org/10.1117/12.662884

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