Passive coherent combining of CEP-stable few-cycles pulses from a temporally divided hollow fiber compressor

Hermance Jacqmin (1) , Aurélie Jullien (1) , Brigitte Mercier (1) , Marc Hanna (2) , Frédéric Druon (2) , Dimitris N. Papadopoulos (3) , Rodrigo B. Lopez-Martens (1)

1 LOA - Laboratoire d'optique appliquée
2 Laboratoire Charles Fabry / Lasers
3 LULI - Laboratoire pour l'utilisation des lasers intenses

We demonstrate a simple and robust passive coherent combining technique for temporal compression of millijoule energy laser pulses down to few-cycle duration in a gas-filled hollow fiber. High combining efficiency is achieved by using carefully oriented calcite plates for temporal pulse division and recombination. Carrier-envelope phase (CEP)- stable, 6-fs, 800-nm pulses with more than 0.6 mJ energy are routinely generated. This method could aid in the energy scaling of CEP-stable hollow-fiber compressor systems.

Domains: Optics [physics.optics]

Hermance Jacqmin, Aurélie Jullien, Brigitte Mercier, Marc Hanna, Frédéric Druon, et al.. Passive coherent combining of CEP-stable few-cycles pulses from a temporally divided hollow fiber compressor. Optics Letters, 2015, 40 (5), pp.709-712. ⟨10.1364/OL.40.000673⟩. ⟨hal-01120355⟩