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| Information |
| Name： | Nd:YAG |
| Categories： | Crystals >> Laser Crystals |
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| Price： | |
| Clicks： | 175 |
| Date： | 2010-02-20 19:24:35 |
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Nd:YAG(Neodymium Doped Yttrium Aluminum Garnet) has been widely used laser crystal for solid-state laser. Its laser parameters are a good compromise between the strengths and weaknesses of its competition. Nd:YAG crystals are used in all types of solid-state lasers systems-frequency-doubled continuous wave, high-energy Q-switched , etc.. Compared with others laser crystals, its fluorescence lifetime is twice more than Nd:YVO4, and thermal conductivity is also better.
- High Gain, Low Threshold, High Efficiency,
- Low Loss at 1.06 mm, High Optical Quality,
- Good Mechanical and Thermal Properties
- Due to the cubic symmetry and high quality, Nd:YAG is easy to operate with TEM00 mode
Basic Properties:
The Sellmeier equations (l in µm for YAG):
n ^2 = 2.08745 + 1.2081 l ^2 /(l^ 2 - 0.02119 )+ 17.2049 l ^2 /(l ^2 - 1404.45 )
Optical and Spectral Properties
- Nd:YAG can produce blue laser with the frequency-doubling of 946nm
- Nd:YAG can be operated in a very high power laser up to kw level at 1064nm
- Nd:YAG can be Q-switched with Cr4+YAG directly
- Nd:YAG can be used for high power green laser for SHG@1064nm
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Doping(atm%):
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0.9%~ 1.1%
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Orientation:
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<111> crystalline direction
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Wavefront distortion:
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l/8 per inch @ 633 nm
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Extinction Ratio:
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>28dB
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Dimension Tolerances
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Dia.: +/-0.025 mm , Length: +/-0.5 mm
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Surface quality:
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10/5 Scratch / Digper MIL-O-1380A
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Parallelism:
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< 10 arc seconds
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Perpendicularity:
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< 5 arc minutes
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Clear Aperture:
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>90%
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Flatness:
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<l/10 @ 633 nm
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chamfer:
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<0.1 mm @ 45deg.
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Barrel Finish:
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50-80 micro-inch (RMS) ,
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Anti-Reflection Coating:
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R < 0.20% @ 1064 nm per surface. Damage threshold over 1GW/cm2@ 1064nm, 10 ns and 10 HZ.
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High-Reflection Coating:
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Standard HR coating with R>99.8% @ 1064nm and R<5% @ 808nm
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Note: The other specification and dimension is available too.
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Doping
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Dimension
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Coating
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1%
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Φ3 X 50mm
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AR/AR@1064nm
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1%
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Φ4 X 40mm
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AR/AR@1064nm
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1%
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Φ6 X 60mm
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AR/AR@1064nm
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1%
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Φ6 X 80mm
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AR/AR@1064nm
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1%
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Φ6 X 100mm
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AR/AR@1064nm
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1%
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Φ6 X 120mm
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AR/AR@1064nm
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1%
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Φ8 X 120mm
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AR/AR@1064nm
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1%
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Φ8 X 135mm
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AR/AR@1064nm
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Note: The other specification and dimension is available too
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