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Item: YAG-010
Item: YAG-010
Product Name: Nd:YLF
Nd:YLF is an excellent crystal for modelocked operation because it combines the characteristics of weak thermal lensing, large fluorescence line width and naturally polarized oscillation.
Advantages of Nd:YLF Crystals
- High power, low beam divergence, efficient single mode operation
- High average power Q-switching at a moderate repetition rate
- Linear polarized resonators for Q-switching and frequency doubling
- Potential uniform mode for large diameter rods or slabs
- Stimulated emission cross section is favorable for low CW threshold
- Thermal lensing lower than that of YAG
- 1053nm output of Nd:YLF matches gain curves of Nd:Glass and performs well as an oscillator and pre-amplifier for this host
Material and Specifications
| Dopant concentration | ~1.0 at% |
| Orientation | <100> or <001> within 5º |
| Wavefront distortion | ≤0.25λ/inch @632.8nm |
| Scatter Losses: | <0.2%/cm @1047/1053nm |
| Rod sizes | Diameter 3~8mm, Length 10~120mmUpon request of customer |
| Dimensional tolerances | Diameter +0.0/-0.03mm, Length ±0.5mm |
| Barrel finish | Ground or polished |
| Parallelism | ≤ 10 arc seconds |
| Perpendicularity | ≤ 5 arc minutes |
| Flatness | ≤ λ/10@632.8nm |
| Surface quality | 10/5 Scratch/dig |
| Chamfer | 0.07~0.15mm |
| AR coating reflectivity | ≤0.25%@1047/1053nm |
Optical and Spectral Properties of Nd:YLF Crystals
| Laser transititon |
4F3/2→ 4I11/2 |
| Laser wavelength | 1047nm, 1053nm |
| Emission cross section | 1.8×10-19cm2(E//C) @1047nm;1.2×10-19cm2(E⊥C) @1053nm |
| Fluorescence lifetime | 485μs (1at%Nd) |
| Index of refraction | @633nm; no=1.443; ne=1.464 @1064nm; no=1.448; ne=1.470 |