title: Femtosecond fiber chirped- and divided-pulse amplification system.
abstract: We implement both chirped pulse amplification and divided pulse amplification in the same femtosecond fiber amplifier setup. This scheme allows an equivalent stretched pulse duration of 2.4 ns in a compact tabletop system. The generation of 77 W of compressed average power at 4.8 MHz, together with 320 fs and 430 μJ pulses at a repetition rate of 96 kHz, is demonstrated using a distributed mode-filtering, rod-type, ytterbium-doped fiber. Limitations in the temporal recombining efficiency due to gain saturation inside the fiber amplifier are identified.
authors: Amplitude Systemes, Cité de la Photonique, Pessac 33600, France. yzaouter@amplitude‑systemes.com
authors: Yoann
authors: Y
authors: Zaouter
authors: Florent
authors: F
authors: Guichard
authors: Louis
authors: L
authors: Daniault
authors: Marc
authors: M
authors: Hanna
authors: Franck
authors: F
authors: Morin
authors: Clemens
authors: C
authors: Hönninger
authors: Eric
authors: E
authors: Mottay
authors: Frédéric
authors: F
authors: Druon
authors: Patrick
authors: P
authors: Georges