NdYAG

NdYAG crystal is the most mature and widely used solid-state laser material adopted by R&D, medical, industrial and military customers. Its properties 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, e.g. frequency-doubled continuous wave laser, high-energy Q-switched pulse laser, etc. Compared with other laser crystals, its fluorescence lifetime is twice that of Nd:YVO4, and thermal conductivity is also better. 
   we specialize in the growth and fabrication of high-purity low-loss rare-earth doped YAG laser materials. LASERTEC's research has led to numerous discoveries resulting in laser materials that have demonstrated increased efficiency, increased output power, increased damage resistance, reduced thermal lensing, higher brightness, and higher TEM00 output. We offer custom manufacturing of laser rods, slabs, discs, passive q-switches & YAG optics, for your high volume production quantities, or low volume development efforts.

Advantages:

1. High Gain, High Efficiency, Low Threshold
2. High Optical Quality and low Loss at 1064 nm
3. Good Mechanical and Thermal Properties
4. Easy to operate with TEM00 mode (Q-Switch, pulsed, CW)

 Specifications

Nd dopant concentration
0.4~1.5 at %
Orientation
<111> within5°
Barrel finish
Ground finish 400#Gmt
Flatness
<λ/10 @ 632.8 nm
Parallelism
≤10 "
Perpendicularity
≤5 '
Surface Quality
10/5 (MIL-O-13830A)
Optical Quality
Interference fringes ≤ 0.125 /inch
Extinction ration Ø3~Ø6.35 ≥ 28db, Ø7~Ø10 ≥ 25dB
Size
Rods: Ø (3~10)mm×(30~180)mm (L)
Slabs: (3~12)mm×(6~24)mm×(60~180)mm (L)
Upon request of customer
Dimensional tolerances
Diameter: +0.15 ( ±0.05mm )
Length: ±0.5mm, chamfer: <0.1 mm @ 45º
AR-Coating Reflectivity
R≤ 0.2% (@1064nm)
HR-Coating Reflectivity
R>99.9%@1064nm and T>97%@808nm
Damage Threshold
>700MW/cm 2 10ns 1Hz at 1064nm

Main properties of Nd:YAG crystal:

Chemical formula
Nd3+:Y3Al5O12
Crystal structure
Cubic
Density
4.56 g/cm3
Melting Point
1970℃
Specific Heat
0.59J/g K(at 300K)
Mohs Hardness
8.5
Thermal Expansion Coefficient
7.8 x 10-6/K [111], 0 -250℃
Thermal Conductivity
0.14W/m/K@20°C
Loss Coefficient
0.003 cm-1 @1064 nm
Laser Wavelength
1064nm
Fluorescence Lifetime
230μs
Emission Cross Section
7.5 x 10-19cm2
Index of Refraction
1.8197

Standard Products

Part No
Diameter(mm)
Length(mm)
Doping
Cut angle
Coating
NdYAG-4080
4
80
0.6%
<111>
AR/AR1064 nm
NdYAG-4100
4
100
1.1%
<111>
AR/AR1064 nm
NdYAG-4110
4
110
1.1%
<111>
AR/AR1064 nm
NdYAG-5080
5
80
1.1%
<111>
AR/AR1064 nm
NdYAG-5100
5
100
1.1%
<111>
AR/AR1064 nm
NdYAG-5110
5
110
1.1%
<111>
AR/AR1064 nm
NdYAG-5115
5
115
1.1%
<111>
AR/AR1064 nm
NdYAG-5120
5
120
1.1%
<111>
AR/AR1064 nm
NdYAG-6100
6
100
1.1%
<111>
AR/AR1064 nm
NdYAG-6110
6
110
1.1%
<111>
AR/AR1064 nm
NdYAG-6115
6
115
1.1%
<111>
AR/AR1064 nm
NdYAG-6120
6
120
1.1%
<111>
AR/AR1064 nm
NdYAG-7100
7
100
1.1%
<111>
AR/AR1064 nm
NdYAG-7115
7
115
1.1%
<111>
AR/AR1064 nm
NdYAG-7145
7
145
1.1%
<111>
AR/AR1064 nm
NdYAG-8080
8
80
1.1%
<111>
AR/AR1064 nm
NdYAG-8100
8
100
1.1%
<111>
AR/AR1064 nm
NdYAG-8110
8
110
1.1%
<111>
AR/AR1064 nm
NdYAG-8165
8
165
1.1%
<111>
AR/AR1064 nm
NdYAG-8185
8
185
1.1%
<111>
AR/AR1064 nm
NdYAG-9120
9
120
1.1%
<111>
AR/AR1064 nm
NdYAG-9150
9
150
1.1%
<111>
AR/AR1064 nm
NdYAG-127120
12.7
120
1.1%
<111>
AR/AR1064 nm