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Nd:YLF is an excellent crystal that is very suitable for mode-locking to obtain short-pulse lasers. Its thermal lens effect is very small, the fluorescence line width is wide, and it outputs linearly polarized light. Nd:YLF crystals have gained important applications in inertial confinement laser fusion scientific research projects.
Product Description
Nd:YLF is an excellent crystal that is very suitable for mode-locking to obtain short-pulse lasers. Its thermal lens effect is very small, the fluorescence line width is wide, and it outputs linearly polarized light. Nd:YLF crystals have gained important applications in inertial confinement laser fusion scientific research projects.
Main Features
Thermal lensing effect is much smaller than YAG crystal
Relatively small stimulated emission cross-section is conducive to low-threshold continuous operation
Suitable for medium repetition rate high average power Q-switched locks
Efficient single-mode operation with high output power and low beam divergence
The output linearly polarized laser is beneficial to obtain high-efficiency Q-switching and frequency-doubling output
Large diameter round rods or large size slats also obtain uniform pattern laser output
The 1053nm laser wavelength matches the gain curve of phosphate neodymium glass and is suitable as an oscillator and preamplifier for high power neodymium glass laser systems.
Material Properties
| Crystal structure | Tetragonal |
| Melting point | 825°C |
| Moh's hardness | 4-5 |
| Density | 3.95g/ cm3 |
| Thermal conductivity | 0.06W/cm/K |
| Young's modulus | 7.5×10 11 dynes cm -2 |
| Tensile strength | 3.3×10 8 dynes cm -2 |
| Coefficient of thermal expansion | [100] Direction: 13×10 -6 /K |
| [001] Direction: 8×10 -6 /K |
Product Parameters
| Doping concentration | Nd:~1.0 at% |
| Orientation | [100] or [001], deviation 5 degrees within |
| Wavefront distortion | ≤0.25λ/25mm @632.8nm |
| Crystal rod size | Diameter: 3~8mm, length: 10~120mm can be customized according to customer requirements |
| 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% @1047/1053nm |
| Coating anti-laser damage threshold |  ≥500MW/ cm2 |
