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Nd:Ce:YAG is an excellent laser material used for
no-water cooling and miniature laser systems. the (Nd,Ce): YAG laser
rod we produce has the characteristics of high efficiency(
laser efficiency than Nd: YAG high about 30-50%),
low threshold, anti-violet radiation and high repetition frequency for
lasers operation. It has achieved the international advanced level .it
is the most ideal laser material for the high repetition air cooling
lasers.
It suitable for different modes of operation (cw, pulsed ,
Q-switched, mode locked, doubling of frequency ) and high-average power
lasers.
Physical and Chemical Properties
|
Chemical formula |
Nd3+:Ce3+:Y3Al5O12 |
|
Crystal Structure |
Cubic |
|
Lattice Parameters |
12.01A |
|
Melting Point |
1970 ℃ |
|
Moh Hardness |
8.5 |
|
Density |
4.56±0.04g/cm3 |
|
Specific Heat (0-20) |
0.59J/g.cm3 |
|
Modulus of Elasticity |
310GPa |
|
Young's Modulus |
3.17×104Kg/mm2 |
|
Poisson Ratio |
0.3(est.) |
|
Tensile Strength |
0.13~0.26GPa |
|
Thermal Expansion Coefficient |
[100]:8.2 × 10-6/ ℃
[110]:7.7 × 10-6/ ℃
[111]:7.8 × 10-6/ ℃
|
|
Thermal Conductivity |
14W/m/K(@25 ℃ ) |
|
Thermal Optical Coefficient (dn/dT)
|
7.3×10-6/ ℃ |
|
Thermal Shock Resistance |
790W/m |
Laser Properties
|
Laser Transition |
4F3/2
--> 4I11/2 |
|
Laser Wavelength |
1.064μm |
|
Photon Energy |
1.86×10-19J@1.064μm
|
|
Emission Linewidth |
4.5A @1.064μm |
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Emission Cross Section |
2.7~8.8×10-19cm-2 |
|
Fluorescence Lifetime |
230μs |
|
Index of Refraction |
1.8197@1064nm |
Standard Specifications
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Dopant concentration, at.% |
0.1-2.5% |
|
orientation: |
<111>within 5° |
|
Flatness |
< λ/10 |
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Parallelism |
≤ 10" |
|
Perpendicularity
|
≤ 5 ′ |
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Surface quality |
10-5 per scratch-dig MIL-O-13830A
|
|
Optical Quality: |
Interference fringes ≤ 0. 25λ /inch
Extinction ration ≥ 30dB |
|
Size: |
Diameter:3～8mm;
Length:40～80mm(Upon
request of customer) |
|
Dimensional tolerances |
Diameter+0.000"/-0.05"; Length ±0.5"; Chamfer:
0.07+0.005/-0.00" at 45° |
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AR Coating Reflectivity
|
≤ 0.2% (@1064nm) |
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