A high power solid state and compact passive Q-switching is preferred for simplicity of manufacturing and operation, low cost and reduced system size and weight. Cr4+:YAGis an excellent crystal for passively Q-switching diode pumped or lamp-pumped Nd:YAG, Nd:YLF,Yb:YAG or other Nd and Yb doped lasers at wavelength from 1.0-1.2um,because of its chemically stable, durable, UV resistant, good thermal conductivity and high damage threshold (>500 MW/cm2) and being easy to be operated, it will replace traditional materials, such as,LiF,organic dye and color centers。
1. Physical Properties
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Chemical Formula: |
Cr4+:Y3Al5O12 |
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Crystal Structure: |
Cubic garnet |
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Hardness: |
8.5(Mohs) |
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Density |
4.56g/cm3 |
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Damage Threshold: |
>500MW/cm2 |
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Refractive Index: |
1.82 @1064nm |
2. Main Specifications:
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Dopant Level: |
0.03mol% ~0.65mol% |
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Initial Transmission: |
5%~95% |
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Dimension Tolerance: |
±0.1mm |
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Flatness: |
L/10 @632.8nm |
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Wavefront Distortion: |
L/8 @632.8nm |
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Parallelism: |
<20" Arc seconds |
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Surface quality: |
10/5 Scratch/Dig. (per MIL-O-13830A) |
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AR Coating: |
R<0.2%@1064or 1053nm, |
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Clear Aperture: |
>90% central area | |
