Nd:YLF
Our Nd:YLF crystal, or neodymium-doped lithium yttrium fluoride, offers excellent overall performance for mode-locked lasers, continuous lasers and materials processing. Nd:YLF is an alternative to Nd:YAG for near-infrared operation, producing laser emission at -1047nm and 1053nm. It can be lamp- or diode-pumped at 808nm. It offers a very broad fluorescence linewidth, low thermal-lens effects and natural polarization. Its main advantages include emission at -1047nm and 1053nm, a relatively long fluorescence lifetime and high pulse energy. Applications include linearly polarized resonators, mode-locked lasers, diode-pumped Nd:YLF lasers and Ti:sapphire chirped-pulse amplifiers. Nd:YLF gain and emission wavelength depend on polarization: π polarization is stronger at 1047nm and σ polarization is weaker at 1053nm. The 1053 nm line closely matches the Nd:glass gain peak, so Nd:YLF lasers are commonly used as preamplifiers for Nd:YLF laser generators and subsequent Nd:glass amplifiers.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Absorption peak wavelength | 792 nm |
| Peak Absorption coefficient | 10 cm⁻¹ |
| Peak Absorption bandwidth | ~5 nm |
| Laser Wavelength | 1047，1053 nm |
| ⁴F₃/₂ Neodymium energy-level lifetime | 485μs |
| Emission cross section [@1047nm 10×10⁻²⁰(e⊥C)cm²@1053 nm] | 15×10⁻²⁰(e∥C)cm²@1047nm 10×10⁻²⁰(e⊥C)cm²@1053 nm |
| Refractive Index [@1064 nm] | nₒ=1.448 nₑ=1.470 |
| Crystal Structure | Quadrilateral |
| Density | 3.95g/cm³ |
| Mohs Hardness | 5 |
| Thermal conductivity | 6Wm⁻¹K⁻¹ |
| Coefficient of thermal expansion | 8×10⁻⁶(∥c)K⁻¹, 13×10⁻⁶(∥a)K⁻¹ |
| Doping concentration | 1-2 at.% |
| Orientation | a-cut, c-cut |
| Transparent Aperture | >90% |
| Face dimension tolerance | +0/-0.1mm |
| Length Tolerance | ±0.1mm |
| Parallelism error | <10 arcsec |
| Perpendicularity error | <10 arcmin |
| Protective groove [@45˚] | <0,1 mm @ 45˚ |
| Surface Quality | 10-5 S-D |
| Surface Flatness [@632.8 nm] | <λ/8@632.8 nm |
| Wavefront distortion [@632.8 nm] | λ/4@632.8 nm |
| Coating [@790-810 nm + R<0.2%@1047-1053 nm] | R<0.5%@790-810 nm + R<0.2%@1047-1053 nm |
| Laser Damage threshold [@1064 nm，10 ps] | >10 J/cm²@1064 nm，10 ps |
Applications
Key Features
Datasheet
Supplier Information
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