Product Description
Product Introduction
Ytterbium doped fiber is an active fiber with double or triple cladding, which can output high-power lasers in the 1 μ m wavelength band. It is mainly used in Ytterbium doped fiber lasers and amplifiers, and is widely used in military, industrial, medical, and scientific research fields due to its advantages of high output beam quality and good stability. By adjusting the fiber parameters, RAYTEK can provide ytterbium doped fibers of different sizes and shapes to meet various application needs.
Application
•Continuous laser, pulse laser
•Defense, healthcare, and scientific research
•material processing
Products feature
•High impurity concentration
•Large mode field area
•High energy conversion efficiency
•Low light-induced degradation performance
•Stable storage under low-end conditions
Product Parameters
| Characteristic |
Unit |
Products index |
| Products model |
/ |
YDF14/250 |
YDF20/400 |
YDF25/400 |
| Geometric characteristics |
| Core diameter |
μm |
14.0±1.0 |
20.0±2.0 |
25.0±1.5 |
| Inner cladding edge margin |
μm |
250.0±3.0 |
400.0±15.0 |
400.0±10.0 |
| Coating layer diameter |
μm |
400.0±15.0 |
550.0±20.0 |
550.0±15.0 |
| Inner cladding shape |
/ |
Octagon |
Octagon |
Octagon |
| Optical characteristics |
| Working wavelength |
nm |
1060~1115 |
1060~1115 |
1060~111 |
| Core attenuation @ 1200nm |
dB/km |
≤15 |
≤20 |
≤20 |
| Package attenuation @ 1095nm |
dB/km |
≤15 |
≤15 |
≤20 |
| Package pumped absorption @ 915nm |
dB/m |
0.7±0.10 |
0.4±00.05 |
0.6±0.10 |
| Core numerical aperture |
/ |
0.7±0.01 |
0.06±0.01 |
0.06±0.005 |
| Numerical aperture of inner cladding layer |
/ |
≥0.46 |
≥0.46 |
≥0.46 |
| Filter intensity |
kpsi |
100 |
100 |
100 |
| Coating material |
/ |
Low refractive index polymer |
Low refractive index polymer |
Low refractive index polymer |
| Characteristic |
Unit |
Index |
| Model |
/ |
RAYTEK-YTF34/460/530 |
| Core attenuation@1200nm |
dB/km |
≤15 |
| First layer pump absorption@915nm |
dB/m |
1±0.15 |
| First layer pump absorption@976nm |
dB/m |
4.3 |
| Second layer pump absorption@915nm |
dB/m |
0.75 |
| Core numerical aperture |
dB/m |
0.10±0.01 |
| First layer numerical aperture |
/ |
0.22±0.02 |
| Second layer cladding numerical aperture |
/ |
≥0.46 |
| Core diameter |
/ |
34±2.5 |
| First layer diameter (F-F) |
μm |
460±15 |
| Second cladding diameter |
μm |
530±10 |
| Core package concentricity |
μm |
≤3.0 |
| Coating layer diameter |
μm |
650±15 |
| Filter intensity |
kpsi |
110±10 |
| Working wavelength |
nm |
1065±50 |
After Sales Service
Customized information
customized working wavelength, mode field diameter, beat length, geometry, coating material, screening strength and other indicators according to customer requirements
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