Ytterbium-Doped Large-Mode-Area Double-Clad Fiber

YDC-LMA-20/490 for fiber lasers

Available in various cross-sectional shapes (double flats, polygons)
High slope efficiency
High-adhesion lowindex polymer outer cladding
Superior humidity performance

Applications:

CW and pulsed fiber lasers from 1060 to 1110 nm

The YDC-LMA-20/490 is a large-mode-area double-clad, high-efficiency Yb-doped
fiber, developed for high-power fiber lasers. StockerYale’s low-index high-adhesion
polymer serves as the outer cladding, providing an NA of 0.48 for the pump radiation.

Specifications

Product code	YDC-LMA-20/490

Operating wavelength	1060 - 1110 nm

Cut-off wavelength	< 1100 nm

Cladding attenuation @ 1100 nm	< 0.002 dB/m

Cladding absorption @ 915 nm	0.56 ± 0.25 dB/m

Core attenuation @ 1300 nm	< 0.010 dB/m

Cladding NA (nominal)	0.48

Core NA (nominal)	0.08

Core diameter	20 µm ± 2 µm

Circumscribed diameter of silica cladding	490 ± 10 µm

Outer cladding material	Low index polymer

Outer coating material	UV-cured acrylate

Graphs

Humidity Performance

For more information contact us.