High-power air-clad large-mode-area photonic crystal fiber laser.
We report on a 2.3 m long air-clad ytterbium-doped large-modearea photonic crystal fiber laser generating up to 80 W output power with a slope efficiency of 78%. Single transverse mode operation is achieved with a mode-field area of 350 microm2. No thermo-optical limitations are observed at the extracted ~35W/m, therefore such fibers allow scaling to even higher powers.
Limpert
Jens
J
Schreiber
T
T
Nolte
S
S
Zellmer
H
H
Tunnermann
T
T
Iliew
R
R
Lederer
F
F
Broeng
J
J
Vienne
G
G
Petersson
A
A
Jakobsen
C
C