Nd YAG Crystal

Various options of Nd-doping ratio (0.1%~1.3at%)
Various options of rods or slabs (flat, wedged, Brewster, grooved, etc)
High optical homogeneity
High processing accuracy
High quality coating, high damage threshold
Very competitive price, quick delivery


Contact Now
Product Details

Nd:YAG (Neodimium Doped Yttrium Aluminum Garnet) has been and continue to be the most widely used laser crystal for solid-state lasers. Good fluorescence lifetime (twice more than that of Nd:YVO4) and thermal conductivity, as well as robust nature, make Nd:YAG crystal very suitable for high-power continuous wave, high-energy Q-switched and single mode operations.

WISOPTIC provides Nd:YAG rods with the following features: different doping levels, high optical homogeneity, high processing accuracy, precise barrel grooving and wedge angle, various end cuts, various dielectric coatings, high damage threshold.

Nd YAG Crystal

WISOPTIC Standard Specifications* - Nd:YAG

Standard Doping Ratio

Nd%=0.1%~1.3at%

Orientation

<111> or <100> or <110>

Orientation Tolerance

+/-0.5°

Dimensions

Diameter: 2~15 mm, Length: 3~220 mm

Dimension Tolerance

Diameter (±0.05)×Length (±0.5) mm

Barrel Finish

Ground with 400# grit, or polished

Flatness

< λ/10 @ 632.8 nm

Surface Quality

< 10/5 [S/D]

Parallelism

< 10”

Perpendicularity

≤ 5'

Chamfer

0.15 ± 0.025mm @ 45°

TransmittedWavefront Distortion

< λ/10 @ 632.8 nm

Clear Aperture

> 90% central area

Extinction Ratio

> 30 dB

Coating

AR-Coating: R<0.10% @1064nm

Laser Damage Threshold

> 800 MW/cm2 for 1064nm, 10ns, 10Hz (AR-coated)

* Products with special requirement upon request.


Main Features - Nd:YAG

• High gain, low threshold, high efficiency

• Homogeneous distribution of Nd with subtle concentration gradient
• High thermal conductivity, high thermal shock resistance
• High homogeneity, low wavefront distortion
• High optical quality, low single pass loss (especially at 1064nm)
• Various modes of operation (CW, pulsed, Q-switched, mode locked)

 Nd YAG Crystal

Physical Properties - Nd:YAG

Chemical formula

Y3-3xNd3xAl5O12 (x=Nd doping ratio)

Crystal structure

Cubic

Lattice constants

12.01 Å

Density

4.55 g/cm3

Rupture stress

1.3~2.6×103 kg/cm2

Melting point

1970 °C

Mohs hardness

8~8.5

Thermal conductivity

14 W/(m·K) @20°C, 10.5 W/(m·K) @100°C

Thermal expansion coefficients

7.8x10-6 /K @<111>, 7.7x10-6 /K @<110>,   8.2x10-6 /K @<100>

Thermal shock resistance

790 W/m

 

Optical Properties - Nd:YAG


Laser transition

4F3/2 → 4I11/2 @ 1064 nm

Photon energy

1.86×10-19 J

Emission linewidth

4.5Å @ 1064 nm

Stimulated emission cross-section

2.7~8.8x10-19 /cm2 @ Nd%=1.0at%

Loss coefficients

0.003 /cm @ 1064 nm

Fluorescence lifetime

230 µs @ 1064 nm

Refractive index

1.818 @ 1064 nm

Pump wavelength

807.5 nm

Absorption band at pump wavelength

1 nm

Polarized emission

Unpolarized

Thermal birefringence

High

 

WISOPTIC Nd:YAG Coating Curve (@1064nm, R=0.01%)

Nd YAG Coating Curve


Nd:YAG Test Report


Nd:YAG Test ReportNd:YAG Test ReportNd:YAG Test ReportNd:YAG Test ReportNd:YAG Test Report


Leave your messages

Related Products

Popular products