Nd:YAG


Wavelength                        1064 nm

Chemical Formula               Y3Al5O12

Melting point                     1970°C

Orientation                        [111] or [100]within 5°

Density                             4.5g/cm3

Parallelism                         ≤ 10"

Perpendicularity                 ≤ 3′

Flatness                            ≤ λ/10 @632.8nm

Surface quality                  10-5













Nd: YAG crystal rod is used in Laser marking machine and other laser equipment. 

It is the only solid substances that can work continuously at room temperature, and is the most excellent performance laser crystal.

It is widely used as a solid-state laser materials. YAG rod’s role is to generate a laser, with the partial and full reflect mirror on both ends ,YAG rod can produce a stable and continuous laser, it is the core part of YAG and fiber laser. 

Nd: YAG laser wavelength is 1064nm, it can be used in military, medical, industrial and other fields.

Advantage of Nd YAG Rod

•  High gain                                 

•  Low threshold 
•  High efficiency                       

•  High optical quality 

•  Low loss                             

•  Large mechanical strength 
•  Good thermal conductivity and thermal shock characteristics 
•  Suitable for different modes of operation (cw, pulsed, Q-switched, mode locked, •  doubling of frequency) 
•  Suitable for high-average power lasers




Basic Properties

Product name

Nd:YAG

Chemical Formula

Y3Al5O12

Crystal structure

Cubic

Lattice constant

12.01Å

Melting point

1970°C

orientation

[111] or [100]within 5°

Density

4.5g/cm3

Reflective Index

1.82

Thermal Expansion Coefficient

7.8x10-6 /K

Thermal Conductivity (W/m/K)

14, 20°C / 10.5, 100°C

Mohs hardness

8.5

Stimulated Emission Cross Section

2.8x10-19 cm-2

Relaxation Time of Terminal Lasing Level

30 ns

Radiative Lifetime

550 us

Spontaneous Fluorescence

230 us

Linewidth

0.6 nm

Loss Coefficient

0.003 cm-1 @ 1064nm

Technical Parameters

Dopant concentration

Nd: 0.12.0at%

Rod sizes

Diameter 135 mm, Length 0.3230 mm Upon request of customer

Dimensional tolerances

Diameter +0.00/-0.03mm, Length ±0.5mm

Barrel finish

Ground Finish with 400# Grit or polished

parallelism

≤ 10"

perpendicularity

≤ 3′

flatness

≤ λ/10 @632.8nm

Surface quality

10-5(MIL-O-13830A)

Chamfer

0.1±0.05mm

AR coating reflectivity

≤ 0.2% (@1064nm)

HR coating reflectivity

99.5% (@1064nm)

PR coating reflectivity

95~99±0.5% (@1064nm)


Customized

You can customise this product to your needs. If you do not find suitable specifications for your application please contact us for custom solution.