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Ho ions are used as active ions, the pumping wavelength is 1.9 μm, and the output wavelength is 2.05 μm linearly polarized laser, which can well pump ZGP to output 3-5 μm mid-wave infrared laser . Selecting the appropriate doping concentration and crystal size can output a higher power 2.05μm laser, which is an important pump source laser crystal for mid-wave infrared lasers.
Product Description
Ho ions are used as active ions, the pumping wavelength is 1.9 μm, and the output wavelength is 2.05 μm linearly polarized laser, which can well pump ZGP to output 3-5 μm mid-wave infrared laser . Selecting the appropriate doping concentration and crystal size can output a higher power 2.05μm laser, which is an important pump source laser crystal for mid-wave infrared lasers.
Main Features
Linearly polarized laser output
The thermal effect of laser operation is small
Suitable for 1.9μm laser pumping
Material Properties
| Melting point | 825°C |
| Moh's hardness | 4-5 |
| Density | 3.95g/ cm3 |
| Thermal conductivity | 0.06W/cm/K |
| Young's modulus | 7.5×1011dynes cm -2 |
| Tensile strength | 3.3×108dynes cm -2 |
| Coefficient of thermal expansion | [100] Direction: 13×10 -6 /K |
| [001] Direction: 8×10 -6 /K |
Product Parameters
| Doping concentration | 0~3at% can be customized according to customer requirements |
| Orientation | [100] or [001], deviation within 5º |
| Wavefront distortion | ≤0.25λ/25mm @632.8nm |
| Crystal rod size | Diameter: 3~9.5mm, Length: 5~120mm can be customized |
| Dimensional tolerance | Diameter: +0.00/-0.05mm, Length: ± 0.5mm |
| Cylindrical processing | Grinding or Polishing |
| Parallelism of end faces | ≤10" |
| Perpendicularity between end face and rod axis | ≤5′ |
| Flatness of end face | ≤λ/10@632.8nm |
| Surface Quality | 10-5 (MIL-O-13830A) |
| Chamfer | 0.15±0.05mm |
| AR Coating Reflectance | ≤0.25% |
