High power air-clad photonic crystal fibre laser.
An Ytterbium-doped photonic crystal fibre laser is demonstrated with a 100 microm2 core area and single transverse mode with an output efficiency of 30 %. Double-clad PCF laser structures are demonstrated with pump cladding NA greater than 0.8 and output power up to 3.9 W. Such lasers are potentially scalable to high power.
Wadsworth
W
W
Percival
R
R
Bouwmans
G
G
Knight
J
J
Russell
P
P