Ytterbium doped double clad fiber YDF-DC-10/125
Photodarkening free Yb-doped DC fiber
Application notes:
YDF-DC-10/125 series is designed for operation without any power degradation in a high-peak-power cladding pumped amplifiers. The highest clad absorption over the market allows usage of only 3 m of such fiber (with 976 nm pump) for efficient amplification.
Article YDF-DC-10/125
Typical inner clad absorption
Fiber specifications
Fiber ID | YDF-DC-10/125 |
| Core diameter, µm | 10.0 ± 0.5 |
| Clad diameter, µm | 125 ± 2 |
| Clad shape | PANDA or octagonal |
| Core NA | 0.085 ± 0.01 |
| Clad NA | > 0.46 |
| Cutoff wavelength, µm | 1.05 ± 0.1 |
| Clad absorption (915 nm), dB/m | > 1.8 |
| Clad absorption (976 nm), dB/m | ~ 5 |
| Core/clad background loss (1150 nm), dB/km | < 50 |
| Photodarkening resistance | >20 times better compare to the Al2O3-SiO2 Yb-doped fiber |
