Spectral pulse synthesis in large-scale ultrafast coherent combining systems

F Guichard (1, 2) , Marc Hanna (1) , L Lombard (3) , Y Zaouter (2) , C Hönninger (2) , Fanny Morin (2) , Frédéric Druon (1) , E Mottay (2) , Patrick Georges (1)

1 Laboratoire Charles Fabry / Lasers
2 Amplitude Systèmes
3 ONERA - The French Aerospace Lab [Palaiseau]

We propose the use of coherent spectral synthesis to reach shorter pulse durations in the context of massively parallel femtosec-ond coherent combining laser systems. A preliminary experiment that performs spectral synthesis with two femtosecond fiber chirped-pulse amplifiers is presented, and shows that a significant decrease of the amplified pulse duration compared to single-band amplification is achieved. We also discuss possible implementation of spectral synthesis in a large-scale coherent combining setup.

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

F Guichard, Marc Hanna, L Lombard, Y Zaouter, C Hönninger, et al.. Spectral pulse synthesis in large-scale ultrafast coherent combining systems. The European Physical Journal. Special Topics, 2015, 224, pp.2545. ⟨10.1140/epjst/e2015-02563-y⟩. ⟨hal-01306661⟩