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 Yong Hee
    Publish time 2022-12-27 10:32    

Er:YAG is an excellent laser crystal which lasers at 2.94um.This wavelength is the most readily absorbed into water and hydroxylapatite of all existing wavelengths and is considered a highly surface cutting laser. It is a well known material for medical applications.


High slope efficiency

Operates well at room temperature

Wide Pump Bands (600-800nm)

Operate in a relatively eye-safe wavelength range


 Dopant Concentration

 ~50 at%


 <111>within 5°

 Wavefront Distortion

 ≤0.125λ /inch@1064nm

 Extinction Ratio

 >25dB (depends on the actual diameter)

 Dimension Tolerances

 Diameter:+0.0/-0.05 mm,   Length: +0.5/-0 mm

 Surface Quality

 10/5 Scratch/Dig MIL-O-1380A





 Clear Aperture


 Surface Flatness

 <λ/10@632.8 nm



 Barrel Finish

 Fine grind

 Anti-Reflection Coating

 R<0.20%@2940nm per surface

 Damage Threshold






Product Classification