DCF-YB-20/400-065 at a glance
Key specifications
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0.4 ± 0.05
Cladding Absorption @ 915 nm (dB/km)
High cladding absorption – reduces fiber length in order to mitigate nonlinear effects such as SRS.
-
0.065 ± 0.005
Numerical Aperture - Core
Light-acceptance angle of the core; with the core size, it sets how many modes are guided.
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400 ± 10
Cladding diameter (µm)
Outer diameter of the glass cladding.
-
Min 0.45
Numerical Aperture - Cladding
High stability against pump wavelengths between 915 nm to 976 nm.
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<= 15
Background loss @ 1100 nm (dB/km)
Very good photodarkening resistance – excellent batch-to-batch consistency.
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<= 15
Background Loss @1200 nm (dB/km)
Fiber loss outside the absorption bands.
Description
This Yb-doped fiber is designed for operation in the 1 µm region. The DCF-YB-20/400-065 shows excellent photodarkening resistance performance ensuring high reliability and long-term stability. With its output power of up to 2.0kW, this fiber allows the design of laser cavity for industrial applications while reducing limitations by non-linear effects and transverse mode instabilities (TMI)
Features & Benefits
- Very good photodarkening resistance – excellent batch-to-batch consistency
- High cladding absorption – reduces fiber length in order to mitigate nonlinear effects such as SRS
- High fiber laser efficiency (> 80%)
- High stability against pump wavelengths between 915 nm to 976 nm
- Output power up to 2kW -- with power scalable to 2.3kW
Applications
- High-power CW fiber lasers
- Material processing: cutting and welding
DCF-YB-20/400-065
Specifications
| Optical | |
|---|---|
| Background loss @ 1100 nm (dB/km) | <= 15 |
| Background Loss @1200 nm (dB/km) | <= 15 |
| Cladding Absorption @ 915 nm (dB/km) | 0.4 ± 0.05 |
| Numerical Aperture - Cladding | Min 0.45 |
| Numerical Aperture - Core | 0.065 ± 0.005 |
| Geometrical & Mechanical | |
| Cladding diameter (µm) | 400 ± 10 |
| Coating Diameter (µm) | 550 ± 15 |
| Core/Cladding Concentricity Error (µm) | <= 1.5 |
| Proof test (kpsi) | >= 100 |
| Environmental | |
| Storage Temperature (°C) | -40 to +85 |
DCF-YB-20/400-065