RE doped single mode fibers
Thanks to their high RE solubility (up to 100 000 ppm) and low phonon energy, LVF fluoride fibers offer dozens of active transitions, enabling a broad range of application possibilities from visible to the mid-infrared.
We have a large stock of various designs of ZFG or IFG doped single mode fibers.
Doped with: Dy, Ho, Tm, Er, Pr, Sm, Nd, Yb…
Co-doped with: Er/Yb, Pr/Yb, Tm/Yb, Ho/Pr, Tm/Nd, Tm/Dy, Tm/Pr, Tm/Ho, Ce/Tm..
Hereinbelow, some significant realizations obtained by research labs with LVF RE-doped fibers:
Molar content (ppm)
λc (*) (µm)
0.5 W CW laser at 785 nm
2.25 W CW laser at 1480 nm
1.12 W CW yellow laser at 575 nm
10.1 W CW laser at 3.24 µm
Tunable laser from 2.8 up to 3.4 µm
Emission at 4.3µm
650 mW CW laser at 2.95 µm
370 mW green laser at 543 nm
Optical cooling demonstration
(*)λc = cut-off wavelength
your own single mode doped fiber
- Doping/co-doping (rare earth, molar content)
- Custom cut-off
- Custom NA: from 0.06 to 0.35 (ZFG), 0.18 to 0.32 (IFG)
- Custom core size (from 1 µm)
All our fibers are available as fiber patch cables or fiber bundles
You have requirements about high power laser delivery?
LVF proposes IR screened fibers and endcaps solutions.