DCF-UN-20/125M
- Core Numerical Aperture
- 0.075 ± 0.005
- Cladding Numerical Aperture
- > 0.45
- Background Loss @ 1100 nm (dB/km)
- < 10.0
DCF-YB-20/128E at a glance
Key specifications
-
3.0 ± 0.3
Cladding Absorption @ 915 nm (dB/m)
High effective pump absorption for length reduction and nonlinear effect mitigation.
-
20.0 ± 1.0
Core Diameter (µm)
Diameter of the light-guiding core.
-
0.080 ± 0.005
Core Numerical Aperture
Light-acceptance angle of the core; with the core size, it sets how many modes are guided.
-
128 ± 3
Cladding Diameter (µm)
Outer diameter of the glass cladding.
-
Min 0.46
Cladding Numerical Aperture
High-NA cladding that captures and guides the pump light.
-
<= 50
Background Loss @1100 nm (dB/km)
Low photodarkening at high power – ensures long-term stability.
Description
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.
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
DCF-YB-20/128E
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 | Min 0.46 |
| Background Loss @1100 nm (dB/km) | <= 50 |
| (dB/km) | <= 50 |
| 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 |
| Proof test (kpsi) | >= 100 |
| Cladding geometry | Octagonal |
| Environmental | |
| Storage Temperature (°C) | -40 to +85 |
DCF-YB-20/128E
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