250 μm Cladding Diameter Double-Clad Ytterbium-Doped Fiber YDF-20/250-DC
Double-clad ytterbium-doped fiber with 250 μm cladding uses optimized fabrication and high-performance glass for pulsed lasers. Single-mode transmission, low bend loss, high absorption, low photodarkening and high efficiency support materials processing, medical and research applications.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating wavelength | 1030-1115 nm |
| Fiber core Numerical aperture | 0.060±0.005 |
| Cladding Numerical Aperture | ≥0.46 |
| Cladding absorption [@915 nm] | 1.0±0.2 dB/m |
| Cladding Optical Loss [@1095 nm] | ≤15.0 dB/km |
| Fiber Core Optical Loss [@1200 nm] | ≤15.0 dB/km |
| Birefringence Coefficient | ≥2.0×10⁻⁴ |
| Fiber Core Diameter | 20.0±1.5 μm |
| Cladding diameter | 250.0±3.0 μm |
| Coating Diameter | 390.0±10.0 μm |
| Fiber Core Cladding Concentricity | ≤2.0 μm |
| Coating Material | Low-refractive-index coating / Low index acrylate |
| Proof-Test Strength | ≥100 kpsi |
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