nd:YAG
Nd:YAG is the earliest and most famous laser host crystal. Since it combines great advantages in many basic properties, Nd:YAG is the ubiquitous presence for near-infrared solid-state lasers and their frequency-doubler, tripler, and higher order multiplier.
FEATURES:
High gain;
Low threshold;
High efficiency;
Low loss at 1064nm;
Good thermal conductivity and thermal shock characteristics;
Mechanical strength;
High optical quality;
Basic Properties:
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Chemical Formula
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Y3Al5O12
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Thermal Expansion Coefficient
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7.8x10-6 /K <111>，0 - 250 oC
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Mohs hardness
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8.5
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Thermal Conductivity
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14W/m/K, 20°C
10.5W/m/K, 100°C |
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Stimulated Emission Cross Section
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2.8x10-19 cm-2
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Loss Coefficient
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0.003 cm-1 @ 1064nm
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Linewidth
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0.6 nm
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Radiative Lifetime
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550 us
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Specifications
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Item
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Nd:YAG Crystal
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Wavefront distortion
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λ/ 4
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Diameter Tolerance
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+/-0.1mm
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Nd Dopant Level
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0.3~2.0(±0.1)atm%
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Parallelism
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<20 arc sec
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Surface quality
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10/5
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Flatness
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λ/ 8
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CA
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>95%
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Coatings
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HR-Coating: R>99.8%@1064nm and R＜5% @808nm;
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