Nd:YAG(Neodimium Doped Yttrium Aluminum Garnet) has been widely used laser crystal for solid-state laser. Its laser parameters are a good compromisebetween the strengths and weaknesses of its competition. Nd:YAG crystals are used in all types of solid-state lasers frequency-doubled continuous wave, high-energy Q-switched , etc.. Compared with others laser crystals, its fluorescence lifetime is twice more than Nd:YVO4, and thermal conductivity is also better.

High Gain, Low Threshold, High Efficiency
Low Loss at 1.06 mm, High Optical Quality
Low Loss at 1.06 mm, High Optical Quality
Low Loss at 1.06 mm, High Optical Quality
Please view Laser crysals Properities

n ^2 = 2.08745 + 1.2081 l ^2 /(l^ 2 - 0.02119 )+ 17.2049 l ^2 /(l ^2 - 1404.45 )
Nd:YAG can produce blue laser with the frequency-doubling of 946nm
Nd:YAG can be operated in a very high power laser up to kw level at 1064nm
Nd:YAG can be Q-switched with Cr4+YAG directly
Nd:YAG can be used for high power green laser for SHG@1064nm
| Doping(atm%): | 0.2%~ 2.5% |
| Orientation: | <111> crystalline direction |
| Wavefront distortion: | l/8 per inch @ 633 nm |
| Extinction Ratio: | >28dB |
| Dimension Tolerances | Dia.: +/-0.025 mm , Length: +/-0.5 mm |
| Surface quality: | 10/5 Scratch / Digper MIL-O-1380A |
| Parallelism: | < 10 arc seconds |
| Perpendicularity: | < 5 arc minutes |
| Clear Aperture: | >90% |
| Flatness: | < l/10 @ 633 nm |
| chamfer: | < 0.1 mm @ 45deg. |
| Barrel Finish: | 50-80 micro-inch (RMS) , |
| Anti-Reflection Coating: | R < 0.20% @ 1064 nm per surface. Damage threshold over 1GW/cm2@ 1064nm, 10 ns and 10 HZ. |
| High-Reflection Coating: | Standard HR coating with R>99.8% @ 1064nm and R<5% @ 808nm |
| Doping | Dimension | Coating |
| 1% | Dia3 x 30mm | AR/AR@ 1064nm |
| 1% | Dia3 x 50mm | AR/AR@ 1064nm |
| 1.1% | Dia6 x 80mm | AR/AR@ 1064nm |
| 1.1% | Dia6 x 100mm | AR/AR@ 1064nm |
| 1.1% | Dia7 x 110mm | AR/AR@ 1064nm |
| 1.1% | Dia8 x 135mm | AR/AR@ 1064nm |