Active Fibers
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.
Standard price available
in our catalog on-line
Depending on your need and wavelength range of interest, fibers can be customized in order to adjust their cut-off wavelength, core diameter and rare earth content.
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.
