Nd:YLF crystal is the most common lasing medium for diode-pumped and arc lamppumped solid-state lasers, it is birefringent in nature, and its laser transitions occur at 1047 and 1053 nm, compared with Nd:YAG laser, Nd:YLF laser has an ability to yield higher pulse energies for repetition rates of a few kHz, and low thermal conductivity.
Advantages:
- 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
- Stimulated emission cross section is favorable for low CW threshold
- Thermal lensing lower than that of YAG
- Potential uniform mode for large diameter rods or slabs
| Dopant Concentration | 1.0 at% |
| Orientation | <111>,<001>within 5° |
| Wavefront Distortion | ≤ λ/4 /inch@1064nm |
| Extinction Ratio | >25dB (depends on the actual diameter) |
| Dimension Tolerances | rods with diameter:+0.0/-0.05 mm, Length: +0.5/-0 mm |
| Surface Quality | 10/5 Scratch/Dig MIL-O-1380A |
| Parallelism | <10″ |
| Perpendicularity | <5′ |
| Clear Aperture | >90% |
| Surface Flatness | <λ/10@632.8 nm |
| Chamfer | <0.1mm@45deg |
| Barrel Finish | Fine grind |
| Anti-Reflection Coating | R<0.20%@1047~1053nm per surface |
| Damage Threshold | >500MW/CM2 at 1064nm, 10ns, 10Hz |
| Diameter | 3~8mm |
| Length | 10~120mm |