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Laser / Optical Properties

Units

Value

Laser Wavelengths

nm

2940

Emission Linewidth

nm

<1

Absorption Band Peak

nm

700

Absorption Bandwidth

nm

200

Emission Cross-section (@1064nm)

10‾²º cm²

3

Fluorescent Lifetime (1.1% doping)

µs

90000

 Absorption Coefficient @808nm

cm‾¹

49

Intrinsic Loss @1064nm

cm‾¹

<0.003

Refractive Index (n) @ 2940nm


1.79

Thermal Optical Coeff. (dn/dT) @1060nm

 10‾⁶/ºC

7.3

 Er:YAG Laser - Availability


Physical / Thermal Properties

Units

Value

Chemical Formula


YAlO:Er

Melting Point

ºC

1970

Thermal Expansion Coeff. @20ºC

 10‾⁶/ºC

9.5

Thermal Conductivity Coeff. @20ºC

W/cm/ºK

0.12

 Specific Heat

 J/g K

0.79

Chemical Durability (@100ºC weigh loss rate distilled water)   

μg/hr.cm²


Density  

g/cm³

5.35

Durability Knoop Hardness

kgf/mm²


Mohs Hardness


8.5

Damage Threshold (1ns)

J/cm³


                      

  








Erbium:Ytterium Aluminium Garnate (Er:YAG) lases at a wavelength of 2940nm. It has good optical and thermal properties and generally superior to Er:Glass. Er:YAG is versatile and is used across a broad range of applications, especially medical.


Key strengths of Er:YAG:









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 Er:YAG Laser Rods


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 Er:YAG Laser Rod Properties