LIEKKI™ Yb2000-7/125 fibers are highly doped, highly photodarkening resistant fibers suitable for low-power amplifier or laser applications.
 

LIEKKI™ Yb2000-7/125 fibers are currently only available as double cladding (Yb2000-7/125DC) fibers.

Product Picture

Features

Advantages

Applications

Very high photodarkening resistance Flat absorption profile enables use of 940 nm pumps Low-power amplifiers, CW lasers

Datasheet

Application Notes

Performance

LIEKKI™ Yb2000-7/125DC Optical Cladding absorption at 920 nm dB/m 1.0 ± 0.2 Core numerical aperture   0.19 ± 0.02       Geometrical and mechanical Core diameter µm 7 ± 0.5 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