Laser Crystals

Neodymium Doped Yttrium Aluminium Garnet (Nd:YAG) Crystal

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Introduction:

Nd:YAG is the earliest and most famous laser crystal. Since it combines great advantages in many basic properties, Nd:YAG is the ubiquitous presence for near-infrared solid-state lasers and their frequency doubler, tripler, and higher order multiplier.


Main Advantages:

• Hig gain

• Low threshold

• High efficiency

• Low loss at 1064nm

•Good thermal conductivity and thermal shock characteristics

•Mechanical strength

•High optical quality



Main Properties:

Chemical Formula

Nd:Y3Al5O12

Lattic Parameter

a=12.01Å

Growth Method

Czochralski

Density

4.5g/cm3

Mohs Hardness

8.5

Melting Point

1970℃

Refractive Index

1.82


CRYSTRO supply Nd:YAG crystal with:

Dimention

Diameter from 3 to 40mm

Nd Dopant level

From 0.3-1.5 atm%

Wave Front Distortion

1/8 wave@632

Diameter Tolerance

±0.05mm

Length Tolerance

±0.5mm

Chamfer

0.10mm@45º

Flatness

<1/10 wave at 633nm

Parallelism

< 10 arc Seconds

Perpendicularity

< 15 arc min

Surface Quality

10/5 Scratch/Dig

Clear Apereture

>90%

Damage Threshold

>500MW/cm2



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