LIEKKI™ Yb700-20/125 fibers are amplifier fibers with large core to cladding area ratio. The fibers have high photodarkening resistivity and a short application length.
 

LIEKKI™ Yb700-20/125 fibers are currently only available as double cladding (Yb700-20/125DC) fibers.

Product Picture

Features

Advantages

Applications

High photodarkening resistivity Large core to cladding area ratio, short application length Matching 6+1:1 pump to signal combiner is available High peak power, moderate average power amplifiers Marking

Datasheet

Application Notes

Performance

LIEKKI™ Yb700-20/125DC Optical Peak cladding absorption at 976 nm (nominal) dB/m (17.2) Cladding absorption at 920 nm dB/m 4.0 ± 0.5    Core numerical aperture   0.08 ± 0.01       Geometrical and mechanical Core diameter µm 20 ± 2 Core concentricity error µm < 1.5 Cladding diameter µm 125 ± 2 Cladding geometry   Octagonal Coating diameter µm 245 ± 15 Coating material   Low index acrylate Cladding numerical aperture   > 0.46 Proof test kpsi > 100