LIEKKI™ Yb1200-10/125 fibers are highly doped large mode area ytterbium fibers for medium-power fiber laser and amplifier applications. The combination of high cladding absorption and single mode core makes them ideal for compact fiber based power amplifiers. 

LIEKKI™ Yb1200-10/125 fibers are available as double cladding (Yb1200-10/125DC) and double cladding polarization maintaining (Yb1200-10/125DC-PM) fibers.