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Er:YAG Laser Crystals

Erbium-doped yttrium aluminum garnet or Er:YAG crystals is an excellent laser crystal which lasers at 2.94 μm, This wavelength is the most readily absorbed into water and hydroxylapatite of all existing wavelengths

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Description

Er:YAG Laser Crystals
Erbium-doped yttrium aluminum garnet or Er:YAG crystals is an excellent laser crystal which lasers at 2.94 μm, This wavelength is the most readily absorbed into water and hydroxylapatite of all existing wavelengths and is considered a highly surface cutting laser. The 2.94μm is a eye-safe wavelength, which makes Er:YAG crystals widely be used in medical applications as dental (hard tissues), orthopedics, etc.

Feature for Er:YAG Laser Crystals
High efficiency
High damage threshold
Eye-safe laser wavelength 2.94nm
Excellent for cosmetic and medical lasers

Specifications of Er: YAG Laser Crystals:

Dopant Concentration	Er: ~50 at%	Wavefront Distortion	≤0.125λ/inch(@1064nm)
Extinction Ratio	≥25 dB	Rod Sizes	Diameter:3~6mm, Length:50~120 mm Upon request of the customer
Dimensional Tolerances	Diameter:+0.000"/-0.002"Length: ± 0.02"	Barrel Finish	Fine Ground
Parallelism	≤10"	Perpendicularity	≤5′
Flatness	λ/10	Surface Quality	10/5(MIL-PRF-13830B)
AR Coating Reflectivity	≤ 0.25% (@2940nm)

Physical and Optical Properties for Er: YAG Laser Crystals:

Laser Transition	⁴I_11/2to⁴I_13/2	Laser Wavelength	2940nm
Photon Energy	6.75×10^-20J(@2940nm)	Emission Cross Section	3×10^-20cm²
Index of Refraction	1.79 @2940nm	Pump Bands	600~800 nm