LIEKKI™ Yb1200-12/125 fibers are highly doped 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™ Yb1200-12/125 fibers are currently available as double cladding non-polarization maintaing and polarization double cladding maintaing fibers.