High average and peak power femtosecond large-pitch photonic-crystal-fiber laser.
We report on the generation of high-average-power and high-peak-power ultrashort pulses from a mode-locked fiber laser operating in the all-normal-dispersion regime. As gain medium, a large-mode-area ytterbium-doped large-pitch photonic-crystal fiber is used. The self-starting fiber laser delivers 27 W of average power at 50.57 MHz repetition rate, resulting in 534 nJ of pulse energy. The laser produces positively chirped 2 ps output pulses, which are compressed down to sub-100 fs, leading to pulse peak powers as high as 3.2 MW.
Friedrich-Schiller-University Jena, Institute of Applied Physics, Albert-Einstein-Strasse 15, 07745 Jena, Germany. martin.baumgartl@uni-jena.de
Martin
M
Baumgartl
Florian
F
Jansen
Fabian
F
Stutzki
Cesar
C
Jauregui
Bülend
B
Ortaç
Jens
J
Limpert
Andreas
A
Tünnermann