Double-clad 10-W Yb3+-doped fiber master oscillator power fiber amplifier for He3+ optical pumping.
We describe an all-fiber ytterbium-doped laser followed by a double-stage ytterbium-doped double-clad fiber amplifier of 10-W output power for helium pumping. Different cavity designs are investigated with the goal of achieving high-power multimode emission at 1083 nm, wavelength tunability over the helium absorption bands, and linewidth envelope control over the range 1-3 GHz. We point out the domains with unstable output power and discuss their origin.
Bordais
Sylvain
S
sbordais@keopsys.com
Grot
Sébastien
S
Jaouën
Yves
Y
Besnard
Pascal
P
Le Flohic
Marc
M