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16/5 - excluding national holidays.
Nd:YLF is a premium laser gain medium prized for its exceptional thermal and optical properties. With a tetragonal structure and natural birefringence, it exhibits weak thermal lensing due to its negative thermal refractive coefficient, enabling superior output beam quality compared to Nd:YAG . It features broad transparency (180–6700 nm), long fluorescence lifetime (485 μs), and emits orthogonally polarized dual wavelengths at 1047 nm (π-polarized) and 1053 nm (σ-polarized) . These properties make Nd:YLF ideal for mode-locked lasers, Q-switched systems, and high-power amplifiers . Our company offers fully customized Nd:YLF crystals with flexible doping concentrations (0.01–2.0 at.%), orientations (a-cut or c-cut), dimensions, and anti-reflective coatings tailored to your specific application requirements .
| Absorption peak wavelength | 792 nm |
| Absorption coefficient at peak | 10 cm-1 |
| Absorption bandwidth at peak wavelength | ~5 nm |
| Laser wavelength | 1047, 1053 nm |
| Lifetime of 4F3/2 neodymium energy level | 485 μs |
| Emission cross-section | 15×10-20 (E||C) cm2@1047 nm
10×10-20 (E⊥C) cm2@1053 nm |
| Refractive index @1064 nm | no=1.448 ne=1.470 |
| Crystal structure | tetragonal |
| Density | 3.95 g/cm3 |
| Mohs hardness | 5 |
| Thermal conductivity | 6 Wm-1K-1 |
| dn/dT | -4.6×10-6 (||c) K-1, -6.6×10-6 (||a) K-1 |
| Thermal expansion coefficient | 8×10-6 (||c) K-1, 13×10-6 (||a) K-1 |
| Typical doping level | 0.1-2 at. % |
| Orientation | a-cut, c-cut |
| Clear aperture | >90% |
| Face dimensions tolerance | +0/-0,1 mm |
| Length tolerance | ±0,1 mm |
| Parallelism error | <10 arcsec |
| Perpendicularity error | <10 arcmin |
| Protective chamfers | <0,1 mm at 45˚ |
| Surface quality | 10-5 S-D |
| Surface flatness | <λ/8@632,8 nm |
| Wavefront distortion | λ/4@632,8 nm |
| Coatings | R<0,5%@790-810 nm + R<0,2%@1047-1053 nm on both faces |
| Laser induced damage threshold | >10 J/cm2@1064 nm, 10 ps |
| Mount | Unmounted |
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