Nd:YAG

Nd:YAG

Neodymium Doped Yttrium Aluminum Garnet – Nd:YAG laser crystals remains to be the most popular material for solid-state lasers manufacturing. It has high gain and very low losses at 1064 nm. Good thermal conductivity and thermal shock characteristics makes it suitable to produce stable and high characteristics reachable lasers.

  • Optola offers diverse shaping and large dimension range availability:
  • Large doping range: 0.1-2.0 at%
  • Grooved rods available
  • Diverse coating

Orientation

<111> or <100> within 5 degree

Wavefront Distortion

≤ λ /8 @ 633nm

Extinction Ratio

≥28 dB

Parallelism

≤ 10 arc second

Perpendicularity

≤ 5 arc minute

Flatness

≤ λ /10 @ 633nm

Surface Quality

10-5 S-D

Chamfer

AR-Coating

<0.1mm x 45 degree

R < 0.25% per surface (@1064nm)

Laser Wavelength

1064nm

Stimulate Emission Cross Section

2.8×10-19 cm-2

Relaxation Time of Terminal Lasing Level

30 ns

Radiative Lifetime

550 ms

Spontaneous Fluorescence

230 ms

Loss Coefficient

0.003 cm-1 @ 1064 nm

Effective Emission Cross Section

2.8 x 10-19 cm2

Linewidth

0.6 nm

Index of Refraction

1.82

Pump Wavelength

807.5nm

Chemical Formula

Nd:Y3A15O12

Crystal Structure

Cubic

Lattice Parameters

12.01Å

Concentration

~ 1.2 x 1020 cm-3

Melting Point

1970℃

Mohs Hardness

8.5

Density

4.56g/cm3

Thermal Expansion Coefficient

[111]Direction:7.8×10-6/℃(0~250℃)

Thermal Conductivity

14W/m/K(@20℃) and 10.5W/m/K(@100℃)