ytterbium doped fiber high quality double clad fiber

China High Quality Double Clad Fiber Ytterbium-doped Fiber for Fiber Lasers

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High quality double clad fiber ytterbium doped fiber is an active fiber used in 1μm fiber lasers. Lasers made with fiber cavities can be widely used in material processing, medical treatment, scientific research and other fields. Compared with traditional solid-state lasers, fiber lasers are widely used for their advantages such as lightness, high efficiency and stability.

Product Applications

  • Industrial, medical and other fields;
  • Continuous/pulsed fiber lasers;
  • High peak/average power fiber lasers;

Product Features

  • Large rod process ensures precise geometric control and batch stability;
  • High ytterbium doping concentration;
  • High quality double clad fiber ytterbium doped fiber has high laser slope efficiency;
  • Low photon darkening;
  • High reliability coatings;

Specifications of High Quality Double Clad Fiber

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
Product number 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
Inner Cladding Edge-Edge Distance (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 1030~1100 1030~1115 1030~1115 1030~1115 1030~1115 1030~1115
Background loss @ 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 numerical aperture 0.08±0.01 0.08±0.01 0.070±0.005 0.070±0.005 0.065±0.01 0.06±0.01 0.06±0.01 0.06±0.01
Inner cladding numerical aperture ≥0.46 ≥0.46 ≥0.46 ≥0.46 ≥0.46 ≥0.46 ≥0.46 ≥0.46
Strength Screening (kpsi) ≥100 ≥100 ≥100 ≥100 ≥100 ≥100 ≥100 ≥100
Coating material Low refractive index polymer

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