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Nd:YAG

Neodymium-doped Yttrium-Aluminum Garnet (Nd:YAG) crystal is the best of the rare earth garnet materials that are characterized by four-level system which permits low threshold operation both in pulsed and CW mode. It 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. Keywords: ND:YAG crystal,YAG crystal,YAG laser crystal,YAG.
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Product description
 

Neodymium-doped Yttrium-Aluminum Garnet (Nd:YAG) crystal is the best of the rare earth garnet materials that are characterized by four-level system which permits low threshold operation both in pulsed and CW mode. It 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.

 

Material Properties:

Host Crystal

Y3Al5O12

Crystal Structure  Cubic 
Moh Hardness  8-8.5 
Melting Point  1950 deg C
Density  4.55 g/cm3

Laser Wavelengths

946 nm, 1064 nm, 1319 nm

Fluorescence Lifetime (1064 nm)

230 µs (depending on dopant concentration)

Emission Cross Section (1064 nm)

7 x 10 -21 cm2

Index of Refraction (1064 nm)

1.82

 

Absorption Spectrum:

 

APPLICATION:

Nd:YAG is widely used solid-state laser material adopted by R&D, medical, industrial and military customers. 
● Nd:YAG can be operated in a very high power laser up to kw level at 1064nm.
● Nd:YAG can be used for high power 532nm laser from SHG 1064nm.
● Nd:YAG can be Q-switched with Pockels Cell or Cr:YAG.
● Nd:YAG can produce blue laser from the frequency-doubling of 946nm.
 
ADVANTAGE:
● High Gain,  Low Threshold,  High Efficiency
● High damage threshold
● High thermal conductivity
● Low Loss at 1.06 um,  High Optical Quality
● Good Mechanical Properties
 

 SPECIFICATIONS:

Dimension Tolerance

D(+0/-0.05) * L(+/-0.5) mm

Ends Type

Parallel or Anti-Parallel or Brewster cut

Cut Angle 

<111> 

Dopant Concentration (± 0.1 at%) 0.5 at% ~ 1.1 at%

Angle Tolerance

 +/-5 °

Perpendicularity

 ≤ 5 ′

Scratch/Dig

10/5

Chamfer

< 0.1mmx45°

Parallelism

 ≤ 10 ″

Chips

< 0.1mm

Flatness

 λ/10@633nm

Clear Aperture

≥ 95%

Wavefront Distortion

 λ/6@633nm

Extinction Ratio

 >28dB

Coatings

C1: AR@1064nm

C2: AR@1064nm & 808nm

Damage Threshold 1GW/cm² 10ns 10Hz at 1064nm

 

STANDARD PRODUCTS:

Doping

Cut Angle

Size(mm)

Coating

1.1%

<111>

Dia.3x50

AR/AR@1064nm

1.1%

<111>

Dia.4x40

AR/AR@1064nm

1.1%

<111>

Dia.5x50

AR/AR@1064nm

1.1%

<111>

Dia.5x115

AR/AR@1064nm

1.1%

<111>

Dia.6x80

AR/AR@1064nm

1.1%

<111>

Dia.6x100

AR/AR@1064nm

1.1%

<111>

Dia.6x115

AR/AR@1064nm

1.1%

<111>

Dia.6x120

AR/AR@1064nm

1.1%

<111>

Dia.6x150

AR/AR@1064nm

1.1%

<111>

Dia.7x80

AR/AR@1064nm

1.1%

<111>

Dia.7x100

AR/AR@1064nm

1.1%

<111>

Dia.7x115

AR/AR@1064nm

1.1%

<111>

Dia.7x140

AR/AR@1064nm

1.1%

<111>

Dia.8x85

AR/AR@1064nm

1.1%

<111>

Dia.8x100

AR/AR@1064nm

1.1%

<111>

Dia.8x110

AR/AR@1064nm

0.5%

<111>

4x4x25

AR@1064nm&808nm

0.5%

<111>

4x4x7

AR@1319nm&1064nm&946nm&808nm

0.5% <111> 3x3x20 AR@1064nm&808nm

1.1%

<111>

3x3x5

S1:HR1064&532, HT808; S2:AR1064

1.1%

<111>

3x3x2

S1:HR@946&473, HT@1064&1319&808; S2:AR@946&473

 

 

 

 

 

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