PM Er and Yb Co-Doped Fiber is mainly used in 1.5μm polarization maintaining optical amplifiers, LiDAR, and human eye safety laser products. CJ Photonics polarization maintaining Er and Yb Co-Doped Fiber has high birefringence and excellent polarization retention properties. This fiber has a high doping concentration and energy transfer efficiency, which can reduce the required pump power and fiber length, thereby reducing the impact of nonlinear effects. At the same time, optical fibers exhibit high efficiency and excellent beam quality, lower fusion losses, and strong bending resistance. Based on the fiber-fabrication process of CJ Photonics, the polarization maintaining erbium-yterbium co-doped fiber exhibits good consistency.
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● High birefringence characteristics |
● Ultra fast 1.5μm fiberlaser |
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Type |
CJEYDF-PM-6/125 |
CJEYDF-SPM-10/125 |
CJEYDF-SPM-10/125H |
CJEYDF-PM-25/300 |
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Optical
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Operating Wavelength |
nm |
1530-1625 |
1530-1625 |
1530-1625 |
1530-1625 |
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Core NA |
- |
0.20±0.02 |
0.12±0.02 |
0.12±0.02 |
0.09±0.01 |
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Cladding NA |
- |
≥0.46 |
≥0.46 |
≥0.46 |
≥0.46 |
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Cladding Attenuation@1095nm |
dB/km |
≤30 |
≤30 |
≤30 |
≤30 |
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Core Absorption@1535nm |
dB/m |
30.0±10.0 |
40.0±15.0 |
70.0±15.0 |
85.0±15.0 |
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Cladding Absorption@915nm |
dB/m |
1.0±0.25 |
3.5±1.0 |
3.0±1.0 |
3.0±0.5 |
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Geometrical&Mechanical |
Birefringence |
- |
≥1.5×10-4 |
≥1.5×10-4 |
≥1.5×10-4 |
≥1.5×10-4 |
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Core Diameter |
μm |
6.0±1.0 |
10.0±1.0 |
10.0±1.0 |
25.0±2.0 |
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Cladding Diameter |
μm |
125.0±1.0 |
125.0±3.0 |
125.0±3.0 |
300.0±8.0 |
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Coating Diameter |
μm |
245.0±10.0 |
245.0±10.0 |
245.0±10.0 |
450.0±15.0 |
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Core-Cladding Concentricity Error |
μm |
≤1.0 |
≤1.0 |
≤1.0 |
≤2.0 |
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Inner Coating Material |
- |
low refractive index coating |
low refractive index coating |
low refractive index coating |
low refractive index coating |
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Cladding Geometry |
- |
Circular, Panda Circle |
Circular, Panda Circle |
Circular, Panda Circle |
Circular, Panda Circle |
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Matrix Material |
- |
silica |
silica |
silica |
silica |
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Proof Test |
kpsi |
≥100 |
≥100 |
≥100 |
≥100 |
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Product Features
Application Area