The DCF-YB-20/128E shows excellent photodarkening resistance performance ensuring high reliability and long-term stability. This fiber shows high absorption and excellent beam quality and is ideal for high-power pulsed fiber lasers and amplifiers used for industrial applications.
Ytterbium-doped fiber for pulsed lasers
DCF-YB-20/128E
Description
Features & Benefits
- High effective pump absorption for length reduction and nonlinear effect mitigation
- Low photodarkening at high power – ensures long-term stability
- Batch-to-batch consistency for high-volume production
Applications
- Pulsed lasers & amplifiers
- Power amplification section of multi-stage high-power amplifiers
- Lasers for marking & engraving
Optical fiber specifications
Optical
Cladding Absorption @ 915 nm (dB/m)
3.0 ± 0.3
Cladding Absorption @ 975 nm (nominal) (dB/m)
(12)
Core Numerical Aperture
0.080 ± 0.005
Cladding Numerical Aperture
> 0.45
Geometrical & Mechanical
Core Diameter (µm)
20.0 ± 1.0
Cladding Diameter (µm)
128 ± 3
Core/Cladding Concentricity Error (µm)
≤ 1.0
Coating Diameter (µm)
260 ± 20
