Triple-Clad Doped Fiber
Fibercore’s triple-clad fibers are designed for fiber lasers, LiDAR systems and high power CATV / telecoms amplifiers.
The unique triple cladding structure is designed to encapsulate the octagonal mode mixing pump guide within a circular outer cladding, enabling lower splice losses and higher splice repeatability. The design also provides additional pump mode confinement to reduce the amount of pump light at the cladding-coating interface to improve long term reliability. The triple clad structure is retro-fit compatible with standard double clad fibers found in pump combiners and other cladding pumped components.
These fibers are designed for different applications, TC1500Y(6/125)HD is suitable for applications up to 1W signal power, TC1500YLP(11/125)HD designed for < 4W signal power and optimized for pulsed applications, TC1500Y(11/125)HD is designed for use at ≥ 5W signal power.
Typical Applications:
- High Power Erbium Doped Fiber Amplifiers (EDFAs)
- Ytterbium/Erbium Doped Fiber Amplifier (YEDFA)
- Fiber Lasers
- Light Detection and Ranging (LIDAR)
- Cable Television (CATV)
Comparison
| | TC1500Y (6/125)HD | TC1500YLP (11/125)HD | TC1500Y (11/125)HD |
|---|---|---|---|
| Laser Core | |||
| Composition | Erbium and Ytterbium | Erbium and Ytterbium | Erbium and Ytterbium |
| Operating Wavelength (nm) | 1520–1570 | 1520–1570 | 1520–1570 |
| Numerical Aperture | 0.20–0.23 | 0.10–0.13 | 0.10–0.13 |
| Mode Field Diameter (μm) | 5.6–7.2 @1550nm | 5.6–7.2 @1550nm | 9.6–12 @1550nm |
| Single-Mode Core Diameter (μm) | 4.3-5.8 | 7.6-11.6 | 7.6-11.6 |
| Cut-Off Wavelength (nm) | 1290–1510 | 1290–1510 | 1290–1510 |
| Peak Core Absorption (dB/m) | 70 (nominal) @1535nm | 50 (nominal) @1535nm | 80 (nominal) @1535nm |
| Pump Guide | |||
| Composition | Pure silica with F-doped silica cladding | Pure silica with F-doped silica cladding | Pure silica with F-doped silica cladding |
| Mean Core Diameter (μm) | 105–115 | 105–115 | 105–115 |
| Absorption (dB/m) | 0.6–0.9 @915nm | 2.5–4.5 @915nm | 2.5–4.5 @915nm |
| Numerical Aperture of low index coating w.r.t. silica | 0.45 (Nominal) | 0.45 (Nominal) | 0.45 (Nominal) |
| General | |||
| Proof Test Level (%) | 1 (100 kpsi) | 1 (100 kpsi) | 1 (100 kpsi) |
| Coating Type | Low index acrylate | Low index acrylate | Low index acrylate |
| Cladding Diameter (μm) | 125 ± 1 | 125 ± 1 | 125 ± 1 |
| Coating Diameter (μm) | 245 ± 15 | 245 ± 15 | 245 ± 15 |
Specifications
Product Variants Explained
| TC1500Y(6/125)HD | Triple-clad ErYb doped fiber |
| TC1500YLP(11/125)HD | Triple-clad ErYb doped fiber |
| TC1500Y(11/125)HD | Triple-clad ErYb doped fiber |
Product Specifications
| Operating Wavelength (nm) | 1520–1570 |
|---|---|
| Cut-Off Wavelength (nm) | 1290–1510 |
| Numerical Aperture | 0.10–0.13 |
| Mode Field Diameter (μm) | 9.6–12 @1550nm |
| Proof Test (%) | 1 (100 kpsi) |
| Cladding Diameter (μm) | 125 ± 1 |
| Coating Diameter (μm) | 245 ± 15 |
| Coating Type | Low index acrylate |
| Absorption (dB/m) | 2.5–4.5 @915nm |
| Composition | Ytterbium |
| Numerical Aperture | 0.07 - 0.08 |
| Mode Field Diameter (μm) | - |
| Single-Mode Core Diameter (μm) | 10 - 12 |
| Cut-Off Wavelength (nm) | - |
| Peak Core Absorption (dB/m) | - |
| Composition | Pure silica with F-doped silica cladding |
| Mean Core Diameter (μm) | 105 - 115 |
| Absorption (dB/m) | 1.1 - 1.5 @915nm |
| Numerical Aperture of Low Index Coating W.R.T. Silica | 0.45 (Nominal) |
| Proof Test (%) | 1 (100 kpsi) |
| Coating Type | Low index acrylate |
| Cladding Diameter (μm) | 125 ± 1 |
| Coating Diameter (μm) | 245 ± 15 |