SM-GDF-1550 double-clad fiber
The Coherent/Nufern GDF-1550 single-mode double-clad fiber is a passive fiber matched with the EYDF-6/125 active erbium-ytterbium co-doped fiber. The erbium-ytterbium co-doped fiber is used in high-power 1550nm band fiber amplifiers, with wide applications in the CATV and telecom fields.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating Wavelength (Normal Conditions) | 1550 |
| Core Numerical Aperture | 0.120 |
| Inner Cladding Numerical Aperture (5%) | ≥0.46 |
| Mode Field Diameter @ 1550nm | 10.5±0.7nm |
| Blocking Wavelength | 1440±80nm |
| Core Attenuation @ 1550nm | ≤2.0dB/km |
| Cladding Attenuation | ≤15.0dB/km |
| Birefringence | 2.5 x 10^-4 |
| Coating Layer Concentricity | < 5.0μm |
| Core-Cladding Deviation | ≤0.50μm |
| Strength Test Level | ≥100kpsi |
| Mode Field Diameter @ 1550nm | um |
| Blocking Wavelength | nm |
| Birefringence | B |
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