Numerical analysis of broad band fiber optical parametric amplifiers pumped by two chirped pulses

Damien Bigourd (1) , Coralie Fourcade Dutin (1) , Olivier Vanvincq (2) , Emmanuel Hugonnot (3)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
2 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
3 CEA-CESTA - Commissariat à l'Energie Atomique et aux Energies Alternatives

Optical parametric amplifier pumped by two chirped pump pulses has been analytically and numerically investigated to predict the spectral gain bandwidth and its temporal distribution. We highlight that the properties of the amplifier depend strongly on the relative chirp values and a uniform spectro-temporal gain can be obtained when the two chirps have opposite signs. A chirped signal pulse owing a very broad bandwidth has also been injected and we demonstrate the amplification of ultra-short pulse with this type of amplifiers.

Domaines: Optique / photonique; Optique [physics.optics]

Damien Bigourd, Coralie Fourcade Dutin, Olivier Vanvincq, Emmanuel Hugonnot. Numerical analysis of broad band fiber optical parametric amplifiers pumped by two chirped pulses. Journal of the Optical Society of America B, 2016, 33 (9), pp.1800-1807. ⟨10.1364/JOSAB.33.001800⟩. ⟨hal-03149672⟩