Large Mode Ytterbium Doped Fiber, 20/125um, Cladding Absorption 29/30dB/m

LIEKKI TM Yb1200-20/125 fibers are highly doped fibers ideally suited for compact high-average-power pulsed amplifier applications where large mode area and short fiber length are critical for suppression of nonlinear effects.

The fibers feature a high-efficiency 20μm diameter core with low NA providing excellent beam quality. The combination of a highly doped core, large core-to-cladding ratio and efficient octagonal cladding shape provides a very high cladding absorption of 6.8dB/m to 7.1dB/m enabling shorter than 2m application lengths.

LIEKKI TM Yb1200-20/125 fibers are available as double cladding (Yb1200-20/125DC) and double cladding polarization maintaining (Yb1200-20/125DC-PM) fibers.

Features 
・Large, low NA core for high beam quality
・High birefringence (Yb1200-20/125-PM)
・Very high pump absorption
・Less than 2 m application length
・Low non-linear effects
・Low photodarkening
・Compatible with 125 μm standard components and tools
・6+1-to-1 combiner in development