| Orientation | <111> or <100> within 5 degree | Wavefront Distortion | ≤Lambda/8 @ 633nm |
| Extinction Ratio | ≥28 dB | Parallelism | ≤ 10 arc second |
| Perpendicularity | ≤ 5 arc minute | Flatness | ≤ Lambda/10 @ 633nm |
| Surface Quality | 10/5 S/D (per MIL-O-13830A) | Chamfer | <0.1mm x 45 degree |
Physical and Optical Properties:
| Laser Wavelength | 1064nm | Stimulate Emission Cross Section | 2.8x10-19cm-2 |
| Relaxation Time of Terminal Lasing Level | 30 ns | Radiative Lifetime | 550 ms |
| Spontaneous Fluorescence | 230 ms | Loss Coefficient | 0.003 cm-1 @ 1064 nm |
| Effective Emission Cross Section | 2.8 x 10-19cm2 | Linewidth | 0.6 nm |
| Index of Refraction | 1.82 | Pump Wavelength | 807.5nm |
| Chemical Formula | Nd:Y3A15O12 | Crystal Structure | Cubic |
| Lattice Parameters | 12.01Å | Concentration | ~ 1.2 x 1020 cm-3 |
| Melting Point | 1970℃ | Mohs Hardness | 8.5 |
| Density | 4.56g/cm3 | Thermal Expansion Coefficient | [111]Direction:7.8×10-6 /℃(0~250℃) |
| Thermal Conductivity | 14W/m/K(@20℃) and 10.5W/m/K(@100℃) | ||
Neodymium Doped Yttrium Aluminum Garnet - Nd: YAG laser crystals have been and will continue to be the most popular lasing media for solid-state lasers. Good fluorescence lifetime, thermal conductivity and robust nature make Nd: YAG laser crystals suitable for high-power continuous wave, high-intensity Q-switched, and single-mode operation. Shanghai North Optics offers the standard Nd: YAG rods with AR coating at 1064nm and customized rods or crystals upon the customer's special request.
Laser Crystal Comparison Chart:
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