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RE doped double cladding fibers

LVF delivers a large variety of ZFG or IFG double cladding singlemode fibers.
Some of them exhibit a double D-shape on the first cladding in order to improve the pump absorption.

Hereinbelow, some significant realizations with LVF RE-doped fiber:

Rare earth
Molar content (ppm)
∅core/clad (µm)
λc (*) (µm)
Specificity
Realization
Publication
Er
70 000
15/240*260/290
2.5
2xD-Shape
41 W CW laser at 2.94 µm
Aydin, 2018
Femtosecond (fs) laser at 2.8 µm
Duval, 2016
fs laser tunable from 2.8 up to 3.6 µm
Duval, 2016
In-amplifier supercontinuum
Gauthier, 2015
Er
50 000
10/240*260/290
2.5
2xD-Shape
NEW FIBER DESIGN (2019)
Er
70 000
15/240*260/290
2.5
2xD-Shape Polarization maintaining
NEW FIBER DESIGN (2019)
Er
10 000
16.5/240*260/290
2.7
2xD-Shape
Polymer ablation
Frayssinous, 2018
5.6 W CW at 3.55 µm
Maes, 2017
Ho
100 000
16/90*100/155
4.2
2xD-Shape
200 mW CW at 3.92 µm
Maes, 2018
Pr/Yb
3000 / 20000
2xD-Shape
Vis emission at 491, 520, 535 and 620 nm
(**)
14/250/290
2.3
Undoped

(*)λc = cutoff wavelength

 Fiber dimensions: Øcore/ Øclad1A* D1B/ Øclad2
Clad 1 = Øclad1A cladding with 2 D-shapes, separated of D1B
Clad 2 =
Øclad2 second cladding = low index resin

Note: this list in not exhaustive since we have in stock double cladding singlemode fibers

Doped with:  Er, Dy, Ho, Tm…
Codoped with: Pr/Yb…

As well as multimode double cladding fibers doped with Er, Tm, Pr… or co-doped Tm/Ho…

(**) The undoped double-cladding fiber was designed for high power laser generation. The double cladding will enable you to inject the pump into the first cladding instead of the core of the doped fiber and thus distribute the pump absorption in the first meters of the fiber.

Double clad

Standard price available
in our catalog on-line

CUSTOMIZE
your own singlemode fiber  :

  • Doping (rare earth and content)
  • Custom cut-off
  • Custom NA (from 0.04 to 0.35)
  • Custom core size (from 2µm core diameter)

All our fibers are available as fiber patch cables or fiber bundles
You have requirements about high power laser delivery?
LVF proposes mid-IR screened fibers and endcaps solutions.