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Overview:
Nd:Ce:YAG is an excellent laser material used for no-water cooling and miniature laser systems. The thermal distortion of Nd:Ce:YAG is appreciably less and the output laser energy is greater(30%-50%) than that in Nd:YAG at the same pumping. It is the most ideal laser material for air cooling laser and is also suitable for different modes of operation (pulsed, Q-switched, mode locked) and high-average power lasers.
General Specifications Of Nd:Ce:YAG:
| Material |
Nd:Ce:YAG |
| Dopant concentration |
Nd:1.0 - 1.1atm% Ce:0.05-0.1atm% |
| Orientation |
<111> or <100> |
| Dimension |
Diameter:1mm-30mm Length:1mm-115mm(upon customer’s request) |
| Wavefront distortion |
<λ/10 per inch@632.8nm |
| Extinction ratio |
>30dB (depends on actual sizes) |
| Diameter tolerance |
+0/-0.04mm |
| Length tolerance |
+0.5/-0mm |
| Chamfer |
<0.1mm@45° |
| Chips |
<0.1mm |
| Barrel finish |
50-80 micro-inch(RMS) |
| Clear Aperture |
>95% |
| Flatness |
λ/10 per inch@632.8nm |
| Scratch/Dig |
10-5 @MIL-0-13830A |
| Perpendicularity |
<5 arc minutes |
| Parallelism |
<10 arc seconds |
| Damage threshold |
>750MW/cm2@1064nm 10ns 10HZ |
| Anti-Reflection coating |
R<0.15%@1064nm per surface |
| High-Reflection coating |
Standard HR coating with R>99.8%@1064nm and R<5%@808nm |
Physical and Optical Properties Of Nd:Ce:YAG:
| Crystal Structure |
Cubic |
| Lattice constant |
12.01Å |
| Melting Point |
1970° |
| Rupture stress |
1.3-2.6*103 kg/cm2 |
| Density |
4.55g/cm3 |
| Mohs hardness |
8.5 |
| Thermal Expansion Coefficient |
[100] Orientation--8.2x10-6/oC (0-250oC) |
| [110] Orientation--7.7x10-6/oC (0-250oC) |
| [111] Orientation--7.8x10-6/oC (0-250oC) |
| Laser transition |
4F3/2 --> 4I11/2 |
| Laser wavelength |
1064nm |
| Photon energy |
1.86×10-19J |
| Emission linewidth |
4.5Å @1.064µm |
| Stimulated emission cross section |
2.7-8.8x10-19 cm2 @Nd 1at% |
| Fluorescence lifetime |
230µs |
| Refractive Index |
1.8197 @1.064µm |
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