Product details

The best fiber manufacturing for high-power fiber lasers and fiber amplifiers is RE doped Double Cladding fibers, as they can be excited by high-power multimode LDs. Because ZBLAN fibers have unique emission bands such as 1.3 μ m-1.46 μ m-2.8 μ scales, the development of new devices utilizing these emission bands is possible.Especially, erbium-doped DCF fiber lasers in the 2.9 μ m wavelength band have been actively studied both domestically and internationally.The octagonal DCFF developed using our existing fiber manufacturing technology is easy to operate and has high excitation efficiency.
■ DCFF configurations
■ Parameters for Custom DCFF
Item | RE doped Double Cladding Fiber |
Fiber Type
|
Double cladding fluoride fiber
|
Dopant
|
Pr, Nd, Ho, Er,Dy, Tm, Yb, others
|
Dopant concentration (ppm mol)
|
500~50000
|
Cladding shape
|
Circular
Octagonal Rectangular |
Core NA
|
0.16, 0.21, zero point two six
|
Cladding NA
|
0.5
|
Cut off wavelength (µ m)
|
<2.5
|
Core Diameter (µ m)
|
>2
|
Cladding size (µ m)
|
Circular:123/200/500 (diameter)
Octagonal: 123/200/500 (diagonal length) Rectangular: 123/200/500 (diagonal length) |
Coating Diameter (µ m)
|
460, 480, six hundred
|
2nd Cladding Thickness (µ m)
|
>30
|
2nd Cladding Material
|
fluororesin
|
Coating Material
|
UV curable acrylate
|
Proof Test
|
1.25cm, 2cm, 6cm Radius
|
Price
|
$10,000 ~ $25,000/lot
|
■ Background Loss & Emission Wavelength
By selecting rare earth elements and excitation wavelengths, light emissions of various wavelengths are obtained.
While the core has low loss in the region of long wavelengths, propagation light in the first clad causes greater loss at 1.7 μm and longer wavelengths due to absorption of the fluorine-based UV resin used for the second clad.
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