Nd:YLF is a solid state laser material which can be pumped with ARC lamp or laser diodes. Because of its relatively long fluorescence lifetime it can be used in Q-switched systems. One of main frequency-doubled Nd:YLF pulses application is to pump ultrafast Ti:Sapphire chirped-pulse amplifiers.
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
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
Nd:YLF crystal emission (lasing):
Both emission wavelengths of Neodymium-doped YLF (Nd:YLF) depends on polarization:
1047 nm (strongest lasing peak) has π polarization (a-axis)
1053 nm (lasing peak) is for σ polarization (c-axis)
Nd:YLF is sometimes preferred substitute for Nd:YAG crystal
Specifications:
Dopant Concentration | 0.6~1.0 at% |
Orientation | A-cut |
Wavefront Distortion | ≤0.25 λ /inch@632.8nm |
Extinction Ratio | >25dB (depends on the actual diameter) |
Dimension Tolerances | Diameter:+0.0/-0.05 mm, Length: +/-0.5 mm |
Surface Quality | 10/5 Scratch/Dig |
Parallelism | <10″ |
Perpendicularity | <5′ |
Clear Aperture | >90% |
Surface Flatness | <λ/10@632.8 nm |
Chamfer | <0.15mm@45deg |
Barrel Finish | Fine grind |
Anti-Reflection Coating | R<0.25%@1047/1053nm |
Diameter | 3~10mm |
Length | 10~150mm |
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