Ytterbium doped fiber YDF-DC-10/125

Photodarkening free Yb-doped DC fiber

APPLICATION NOTES:

Ytterbium doped fiber 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

Ytterbium doped fiber	YDF-DC-10/125
Core diameter, µm	10.0 ± 1
Clad diameter, µm	127 ± 3
MDF @ 1064nm, µm	10.0 ± 1
Clad shape	PANDA or octagonal
Core NA	0.09 ± 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
Effective pumping range, µm	0.91 - 0.984
Photodarkening resistance	>20 times better compare to the Al2O3-SiO2 Yb-doped fiber