Nd:YAG is laser crystal with excellent comprehensive properties. For of its superior basic properties, it is often used in near-far infrared solid-state lasers and their frequency tripled application. YAG is a popular choice for laser systems and is often paired with other crystals to achieve specific wavelengths or pulse durations.
Main features:
♦ Good optical uniformity and good mechanical properties
♦ Good thermal conductivity and thermal shock properties
♦ High Gain, Low Laser Threshold, High Efficiency
♦ 1064 nm light wave absorbs less
♦ Suitable for various working modes (continuous, pulsed, Q-switched, mode-locked)
♦ High optical quality and low loss
Typical applications:
♦ Photoelectric countermeasure equipment system
♦ High-performance laser instrument, laser marking machine
♦ High Power, High Energy, Q-Switched and Mode-locked Ultrashort Pulse Lasers
Absorption and emission curves of Nd:YAG
Technical Parameters
Argument Name | Values and Ranges |
Length tolerance | ± 0.5 mm |
| Dimension tolerance | ± 0.05 mm |
Chamfering | ≤ 0.1 mm × 45° |
Finish | 10/5 |
Flatness | λ/8 |
Wavefront distortion | < λ/8@633nm |
Parallelism | < 20 arc sec |
Perpendicularity | < 5 arc min |
Doping concentration | 0.3~2.0 (± 0.1) atm% |
Quality warranty period | 1 year (with normal use) |
Crystal Structure and Physical Properties
Argument Name | Values and Ranges |
Crystal structure | Cubic |
Crystal parameters | 12.01 Å |
Density | 4.5 g/cm3 |
Melting point | 1970°C |
Refractive index | 1.82 |
Mohs hardness | 8.5 |
Coefficient of thermal expansion | 7.8 × 10-6 /K <111>，-250 °C |
Thermal conductivity | 14 W/cm/K，20°C，10.5 W/cm/K，100°C |
Stimulated shot cross-section | 2.8 × 10-19 cm-2 |
Hesitation time | 30 ns |
Radiation lifetime | 550 µs |
Autofluorescence | 230 µs |
Spectral line width | 0.6 nm |
| Loss coefficient | 0.03 cm-1@ 1064nm |
Standard Size
Product NO. | Diameter (mm) | Length (mm) | Doping% | Coating |
NYG-301 | 3 | 50 | 0.8% | AR/AR@1064 nm |
NYG-302 | 3 | 100 | 0.8% | AR/AR@1064 nm |
NYG-303 | 3 | 10 | 1.1% | AR/AR@1064 nm |
NYG-304 | 3 | 50 | 1.1 | AR/AR@1064 nm |
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