Thulium-doped Fiber
Everfoton Double-cladding Thulium-doped Fiber is an active gain fiber used for 2 μm fiber lasers and amplifiers. This series of fibers achieves high slope efficiency and low nonlinear effects when pumped at 793 nm by optimizing the profile and thulium ion doping concen-tration design. It can be widely used in the fields of medicine, material processing, and opto-electronic countermeasures.
High Thulium-doped concentration
High laser slope efficiency @793nm
Low nonlinear effects
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Applications
- 2 μm fiber lasers and amplifiers
- Surgical procedure
- Material processing
- Photoelectric countermeasure
Specifications
Specifications
| Fiber Type | TDF_DC 25/400（Ⅰ） | TDF_DC 25/400（Ⅱ） | TDF_DC 25/400(Ⅲ) | |
| Part No. | YD1114-A | - | - | |
| Optical Properties | ||||
| Operating Wavelength (nm) | 1600~2100 | |||
| Cladding Absorption@793nm (dB/m) | 2.20±0.20 | 3.60±0.50 | 1.80±0.20 | |
| Core NA | 0.110±0.005 | 0.085±0.01 | 0.095±0.005 | |
| Cladding NA | ≥0.46 | ≥0.46 | ≥0.46 | |
| Core Attenuation@860nm (dB/km) | ≤20.0 | ≤20.0 | ≤20.0 | |
| Geometrical/Mechanical Properties | ||||
| Core Diameter (µm) | 25.0±2.0 | 25.0±2.0 | 25.0±2.0 | |
| Cladding Diameter (µm) | 400.0±5.0 | 400.0±5.0 | 400.0±5.0 | |
| Coating Diameter (µm) | 550.0±10.0 | 550.0±10.0 | 550.0±10.0 | |
| Core/Cladding Concentricity (µm) | ≤2.0 | ≤2.0 | ≤2.0 | |
| Proof Test (kpsi) | ≥ 100 | |||
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