Solid State Nd YAG Laser Rod - Low Threshold Pulse CW Operation Industry

Wide absorption bandwidth

Low lasing threshold

High slope efficiency

Large luminescence cross-section

Linearly polarized emission and single-mode output

Laser cutting

Laser welding

Laser marking

Laser ranging

Laser surgery

Materials

Nd:YAG

Nd Concentration tolerance (atm%)

0.3-1.5%

Orientation

[001] or [110] or [111] < ±0.5°

Parallel

10

Perpendicular

5

surface Quality

10/5

Wavefront Distortion

/4@632nm

Surface Flatness

/8@632nm

Clear Aperture

>95%

Chamfer

<0.2×45°

Thickness/Diameter Tolerance

±0.05 mm

Maximum dimensions

dia (3~12.7)×(3~150)mm

Coatings

AR/AR@940+1030HR@1030+HT@940+AR1030

Properties

Nd:YAG

Crystal Structure

cubic - la3d

Lattice Constants

12.01

Density

4.56 g/cm³

Melting Point

1950°C

Refractive Index

n= 1.8197 @1.064 m

Thermal Conductivity /(Wcm^-1K^-1@25°C)

0.14 W

Specific Heat/ (Jg^-1K^-1)

0.59

Thermal Expansion /(10^-6/°C@25°C )

6.9

Hardness (Mohs)

8.5

Young`s Modulus /GPa

317

Shear Modulus / GPa

54.66

Extinction Ratio

25dB

Poisson Ratio

0.25

Properties

Nd:YAG

pump transition wavelength, _p (nm)

808

laser transition wavelength, _l (nm)

1064

pump transition bandwidth,_p (nm)

<4

laser transition bandwidth, _l (nm)

~0.6

pump transition peak cross section,_p (E^-20 cm²)

6.7

laser transition peak cross section, _l (E^-20 cm²)

28

pump transition saturation intensity,_p (kW/cm²)

12

laser transition saturation intensity, _l (kW/cm²)

2.6 <