Double-cladding Ytterbium-doped Fiber (YDF)-Everfoton Technologies Corporation Limited

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Double-cladding Ytterbium-doped Fiber (YDF)

Everfoton's Double-cladding Ytterbium-doped Fiber (YDF) is one kind of active fiber used for 1 micrometer fiber laser. Laser made with fiber cavity is extensively used in material processing, medical treatment and scientific research and other fields. Fiber laser is widely used for its advantages such as lightness, efficiency and stability, which is competitively alternative to solid state laser.

Precise geometry
High ytterbium doping concentration
High laser slope efficiency
Low photo-darkening
High reliability coating

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sales@everfoton.com

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Applications Specifications

Applications

CW / Pulse fiber laser
Industry/ Medical
High peak-power / High average-power fiber laser

Specifications

Fiber Type	YDF_DC 10/125	YDF_DC 20/125	YDF_DC 23/130	YDF_DC 14/250	YDF_DC 25/250	YDF_DC 30/250	YDF_DC 20/400	YDF_DC 30/400
Part No.	YD1110-A	YD1110-B	YD1111-A	YD1110-H	YD1110-D	YD1110-E	YD1110-C	YD1110-F
Geometrical Properties
Core Diameter (µm)	10.0±1.0	20.0±1.5	23.0±1.0	14.0±1.0	25.0±2.5	30.0±3.0	20.0±2.0	30.0±3.0
Cladding Diameter (flat-to-flat) (µm)	125.0±3.0	125.0±3.0	130.0±3.0	250.0±10.0	250.0±10.0	250.0±10.0	400.0±15.0	400.0±10.0
Coating Diameter (µm)	245.0±15.0	245.0±15.0	245.0±15.0	400.0±20.0	400.0±20.0	400.0±20.0	550.0±20.0	550.0±20.0
Inner Cladding Shape	Octagon
Optical Properties
Operating Wavelength (Yb3+) (nm)	1030 - 1115	1030 - 1115	1030 - 1110	1030 - 1115	1030 - 1115	1030 - 1115	1030 - 1115	1030 - 1115
Background Attenuation @1200nm (dB/km)	＜30	＜30	＜30	＜30	＜30	＜30	＜30	＜30
Cladding Pump Absorption@915nm (dB/m)	1.7±0.4	4.0±0.5	4.1±0.5	0.6±0.1	2.0±0.4	2.0±0.4	0.40±0.05	0.6±0.1
Core NA	0.08±0.01	0.08±0.01	0.070±0.005	0.07±0.005	0.065±0.01	0.06±0.01	0.06±0.01	0.06±0.01
Inner Cladding NA	≥0.46	≥0.46	≥0.46	≥0.46	≥0.46	≥0.46	≥0.46	≥0.46
Proof Test (kpsi)	≥100	≥100	≥100	≥100	≥100	≥100	≥100	≥100
Coating Material	Low Index Polymer

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