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Nd:YAG

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..

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Products Details

 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.

Advantages Of Nd:YAG:

  • High gain;
  • Low threshold;
  • High efficiency;
  • Low loss at 1064nm;
  • Good thermal conductivity and thermal shock characteristics;
  • Mechanical strength;
  • High optical quality;
  • Material characteristics that allow for various modes of operation (CW, pulsed, Q-switched, mode locked). 

Basic Properties

Chemical Formula
Y3Al5O12
Crystal Structure
Cubic
Lattice Constant
12.01Å
Melting Point
1970°C
Density
4.5g/cm3
Reflective Index
1.82
Thermal Expansion Coefficient
7.8x10-6 /K<111>,0 - 250 ℃                                  
Thermal Conductivity 
 
14W/m/K, 20°C
10.5W/m/K, 100°C
Mohs hardness
8.5
Stimulated Emission Cross Section   
2.8x10-19 cm-2
Loss Coefficient
0.003 cm-1 @ 1064nm
Linewidth
0.6 nm
Radiative Lifetime
550 μs
 

Capabilities

ATTRIBUTE
COMMERCIAL
HIGH PRECISION
DOPANT CONCENTRATION
0.4atm% - 1.1atm%
ORIENTATION
±0.5°
±0.5°
WAVEFRONT DISTORTION
λ/8
λ/10
EXTINCTION RATIO
28dB
30dB
DIMENSION TOLERANCE
Nd:YAG Rod:Dia±0.025, L±0.25mm
Nd:YAG slab: ±0.01mm
Nd:YAG Rod:Dia±0.025, L±0.25mm
Nd:YAG slab: ±0.01mm
ENDS FINISH
Surface Figure
λ/8
End finish
Surface Quality
20-10 scratch and dig
10-50 scratch and dig
Perpendicularity
15'
5'