Er:YAG is an excellent laser crystal which lases at 2940 nm. This wavelength is the most readily absorbed into water and hydroxylapatite of all existing wavelengths and is considered a highly surface cutting laser. It has wide applications in medical applications, such as dental (hard tissues), orthopedics, etc.
Advantages of Er:YAG Crystal:
• High slope efficiency;
• Operate well at room temperature;
• Operate in a relatively eye-safe wavelength range.
Material and Specifications
Er: ~50 at%
Diameter:3~6mm, Length:50~120 mm
Upon request of customer
Ground Finish: 400# Grit
0.006"±0.002" at 45°± 5°
AR Coating Reflectivity
≤ 0.25% (@2940nm)
Optical and Spectral Properties of Er:YAG Crystal
4 I 11/2 to 4 I 13/2
Emission Cross Section
Index of Refraction
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