Fused Silica Optics Co.,LTD
Fused Silica Optics Co.,Ltd
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ND YAG Laser Rod Crystal for 1064nm Lasers
Neodymium Doped Yttrium Aluminum Garnet (Nd: YAG) Crystal.
Nd: YAG crystal is the most widely used solid-state laser material today. Now, we are able to stably supply quantity of Nd: YAG rods with high optical homogeneity, consistent performance, high processing accuracy and on time delivery.
Specifications
| Dimention | Diameter from 3 to 40mm | Flatness | <λ/10 wave at 633nm |
| Nd Dopant level | From 0.1-1.1 atm% | Parallelism | <10 arc Seconds |
| Wave Front Distortion | 1/8 wave@632 | Perpendicularity | <15 arc min |
| Diameter Tolerance | ±0.05mm | Surface Quality | 10/5 Scratch/Dig |
| Length Tolerance | ±0.5mm | Clear Apereture | >90% |
| Chamfer | 0.10mm@45° | Damage Threshold | >500MW/cm2 |
| Coatings |
AR@1064nm,R < 0.1%, HT@808nm,T > 95%,HR@1064nm,R < 99.8%; HR@532nm,R > 99% |
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Physical Properities
| Chemical Formula | Y3-xNdxAl5O12 |
| Crystal Structure | >Cubic |
| Lattice Constants | 12.01A |
| Concentration | -1.2×1020cm-3 |
| Melting Point | 1970°C |
| Density | 4.56g /cm3 |
| Mohs Hardness | 8.5 |
| Refractive Index | 1.82 |
| Themal Expansion Coefficient | 7.8×10-6/k[111],0－250°C |
| Themal Conductivity | 14W/m/K@20°C,10.5W/m/K@100°C |
Optical Properities
| Lasing wavelength | 1064nm |
| Stimulated Emissior Terminal Lasing | 2.8×10-19cm-2 |
| Relaxation Time of Terminal Lasing Level | 30ns |
| Polarized Emission | Unpolarized |
| Radiative Lifetime | 550µs |
| Sportaneous Fluorescence | 230µs |
| Loss Coefficient | 0.003cm-1@1064nm |
| Effective Emission Cross Section | 2.8×10-19cm2 |
| TPump Wavelength | 807.5nm |
| Absorption band pump wavelength | 1nm |
| Linewidth | 0.6nm |
| Themal Birefringence | High |