LIEKKI™ Yb1200-30/250 fibers are highly doped ytterbium fibers which feature very high cladding absorption, high efficiency per application length and excellent beam quality. They are ideal fibers for high-average-power pulsed fiber amplifiers.

LIEKKI™ Yb1200-30/250 fibers are available as double cladding (Yb1200-30/250DC) and double cladding polarization maintaining (Yb1200-30/250DC-PM) fibers.