Ho:YAG
Ho ion is used as active ion, the pump wavelength is 1.9 μm, and the output wavelength is 2.05 μm unpolarized laser. Due to the excellent physical and chemical properties of the YAG matrix, it can withstand high thermal loads, so it can output 2.05 μm lasers with high power and high repetition frequency. It is an important pump source laser crystal for mid-wave infrared lasers
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal structure | Cubic system |
| Lattice constant | 12.01 Å |
| Melting point | 1970°C |
| Moh's hardness | 8.5 |
| Density | 4.56±0.04g/ cm3 |
| Specific heat [@0–20℃] | 0.59J/g.cm 3 @0-20℃ |
| Elastic Modulus | 310GPa |
| Young's modulus | 3.17×10 4 Kg/mm2 |
| Poisson's ratio | 0.3 |
| Tensile strength | 0.13~0.26GPa |
| Coefficient of thermal expansion | [100] Direction: 8.2×10 -6 /K@ 0~250℃; [110] Direction: 7.7×10 -6 /K@0~250℃; [111] Direction: 7.8×10 -6 /K@0~250℃ |
| Thermal conductivity | 14W/m/K@20℃; 10.5W/m/K@100℃ |
| Thermo-optic coefficient (dn/dT) | dn/dT =7.3×10 -6 /K |
| Thermal shock resistance | 790W/m |
| Solubility | Insoluble in water, slightly soluble in common acids |
| Doping concentration | 0~3at% Can be customized according to customer requirements |
| Orientation | <111>±5° |
| Wavefront distortion [@632.8nm] | ≤0.25λ/25mm @632.8nm |
| Size | Diameter: 3~15mm, Length: 5~180mm , 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 [@632.8nm] | ≤λ/10@632.8nm |
| Surface Quality | 10-5 (MIL-O-13830A) |
| Chamfer | 0.15±0.05mm |
| AR Coating Reflectance | ≤0.25% |
Key Features
Datasheet
Supplier Information
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