Jinan Crystrong Photoelectric Technology Co.,Ltd
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Good Optical Properties High Optical Quality Nd:YAG Laser Crystals For High Power Laser
Products Description:
Neodymium Doped Yttrium Aluminum Garnet - Nd:YAG laser crystal is the most popular lasing media for solid-state lasers. Good fluorescence lifetime, thermal conductivity and robust nature make Nd:YAG laser crystal suitable for high power continuous wave, high intensity q-switched and single mode operation. Crystrong offers high optical quality standard sizes Nd:YAG laser crystals - rods with high damage threshold AR@1064 nm coatings.
Properties of 1.0% Nd:YAG at 25°C:
| Formula | Y2.97Nd0.03Al5O12 |
| Crystal structure | Cubic |
| Density | 4.55 g/cm3 |
| Melting point | 1970oC |
| Mohs hardness | 8.5 |
| Transition | 4F3/2→4I11/2 @ 1064 nm |
| Fluorescence lifetime | 230 μsec for 1064 nm |
| Thermal conductivity | 0.14 Wcm-1 K-1 |
| Specific heat | 0.59 J g-1 K-1 |
| Thermal expansion | 6.9 x 10-6 °C-1 |
| dn/dt | 7.3 x 10-6 °C-1 |
| Young’s modulus | 3.17 x 104 Kg/mm-2 |
| Poisson ratio | 0.25 |
| Thermal shock resistance | 790 Wm-1 |
| Refractive index | 1.818 @ 1064 nm |
| Doping | 0.8% or 1.1% |
| Orientation | <111> crystalline direction |
| Surface quality | 10-5 scratch/dig as per MIL-O-13830A |
| Surface flatness | λ/10 at 633 nm |
| Parallelism | < 10 arcsec |
| Perpendicularity | < 5 arcmin for plano/plano ends |
| Diameter tolerance | +0/-0.05 mm |
| Length tolerance | +1/-0.5 mm |
| Clear aperture | > 90 % of full aperture |
| Chamfers | 0.1 mm at 45 deg |
| Coating | both sides coated AR @ 1064 nm, R < 0.2%, AOI = 0 deg |
| Barrel grooving | all dia 6.35, 8, 10, 12 mm rods with barrel groowing |