The DCF-YB-20/125E-PM double clad fiber features high absorption and low photodarkening. This fiber shows excellent beam quality which is required for various material processing applications. It is also ideal for the design of a wide range of pulsed fiber lasers and amplifiers.
Double-Clad Polarization-Maintaining Ytterbium Doped Fiber
DCF-YB-20/125E-PM
Description
Features & Benefits
- High effective pump absorption – allows fiber length reduction and nonlinear effect mitigation
- Very low photodarkening at high power – ensures stable long-term operation
- High birefringence – minimizes stress
- Excellent beam quality – efficient fiber laser applications
Applications
- Ultrafast fiber lasers
- Pulsed fiber lasers & amplifiers
- Material processing
- Second Harmonic Generation
- Scientific
Optical fiber specifications
Optical
Cladding Absorption @ 915 nm (dB/m)
4.15 ± 0.45
Cladding Absorption @ 975 nm – nominal (dB/m)
(16.6)
Core Numerical Aperture
0.075 ± 0.005
Cladding Numerical Aperture
> 0.45
Geometrical & Mechanical
Core Diameter (µm)
20 ± 1
Cladding Diameter (µm)
125 ± 2
Core/Cladding Concentricity Error (µm)
< 1.0
Coating Diameter (µm)
245 ± 15
