Single-stage few-cycle nonlinear compression of milliJoule energy Ti:Sa femtosecond pulses in a multipass cell

Louis Daniault (1) , Zhao Cheng (1) , Jaismeen Kaur (1) , Jean-François Hergott (2, 3) , Fabrice Réau (2, 3) , Olivier Tcherbakoff (2, 3) , Nour Daher (4) , Xavier Delen (4) , Marc Hanna (4) , Rodrigo B. Lopez-Martens (1)

1 LOA - Laboratoire d'optique appliquée
2 LIDYL - Laboratoire Interactions, Dynamiques et Lasers (ex SPAM)
3 SLIC - Serveurs Laser
4 Laboratoire Charles Fabry / Lasers

We report on the nonlinear temporal compression of mJ energy pulses from a Ti:Sa chirped pulse amplifier system in a multipass cell filled with argon. The pulses are compressed from 30 fs down to 5.3 fs, corresponding to two optical cycles. The post-compressed beam exhibits excellent spatial quality and homogeneity. These results provide guidelines for optimizing the compressed pulse quality and further scaling of multipass-cell-based post-compression down to the single-cycle regime.

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

Louis Daniault, Zhao Cheng, Jaismeen Kaur, Jean-François Hergott, Fabrice Réau, et al.. Single-stage few-cycle nonlinear compression of milliJoule energy Ti:Sa femtosecond pulses in a multipass cell. Optics Letters, 2021, 46 (20), pp.5264. ⟨10.1364/ol.442707⟩. ⟨hal-03449702⟩