400-VIII Double-Clad Ytterbium-Doped Fiber
The Coherent/Nufern YDF-25/400-VIII large mode area double-clad ytterbium-doped fiber is an ideal fiber for high average power pulsed fiber amplifiers and narrow-linewidth CW fiber amplifier applications. Based on a few-modes low-NA core design, this fiber can achieve high output power with high output beam quality.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating Wavelength (Normal Conditions) | 1060-1115 |
| Cladding Pump Absorption @ 975nm | 2.40dB/m |
| Inner Cladding Numerical Aperture (5%) | ≥0.46 |
| Cladding Attenuation | ≤15.0dB/km |
| Birefringence (Ordinary) | 3.5x10^-4 |
| Cladding Diameter | 400.0±15.0μm |
| Coating Layer Material | Low-index polyester |
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