LIEKKI™ Yb700-25/250 fibers are amplifier fibers with large core to cladding area ratio. The fibers have high photodarkening resistivity and a short application length.
 

LIEKKI™ Yb700-25/250 fibers are available as double cladding (Yb700-25/250DC) and double cladding polarization maintaining (Yb700-25/250DC-PM) fibers.

Product Picture

Features

Advantages

Applications

High photodarkening resistivity Large core to cladding area ratio, short application length CW amplification Pulsed amplification Nonlinear wavelength conversion

Datasheet

Application Notes

Performance

LIEKKI™ Yb700-25/250DC LIEKKI™ Yb700-25/250DC-PM Optical Peak cladding absorption at 976 nm (nominal) dB/m (6.5) (6.5) Cladding absorption at 920 nm dB/m 1.5 ± 0.2 1.6 ± 0.2 Core numerical aperture   0.07 ± 0.01 0.07 ± 0.01 Birefringence     > 1.40E-04         Geometrical and mechanical Core diameter µm 25 ± 2.5 25 ± 2.5 Core concentricity error µm < 1.5 < 1.5 Cladding diameter µm 250 ± 10 250 ± 10 Cladding geometry   Octagonal Round Coating diameter µm 350 ± 15 350 ± 15 Coating material   Low index acrylate Low index acrylate Cladding numerical aperture   > 0.46 > 0.46 Proof test kpsi > 100 > 100