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Products > Optical Elements > Crystals > Er: YAG Crystal
Er: YAG Crystal
Product name : Er: YAG Crystal
Product No. : 202196115939
Material : Y3Al5O12
Size : Diameter: 3-6mm, Length: 50-120mm or according to the customer's requests
Density(g/cm3) : 4.56
Refractive Index : 1.79 @2.94μm
Form : 
Purity : 
Application : It is the most important working material of 3mm laser and is widely used in laser medical system
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  Details:
Er concentration: ~ 50 at%
Crystal direction: [111] direction deviation + / - 10`
Interference fringe ≤ 0.25/25mm @ 1.06 μ M measurement
Dimensional tolerance: Diameter: + 0.00 / - 0.05mm, length: ± 0.5 mm
Cylindrical finish grinding: Finish grinding: 400# abrasive
End face finishing surface machining: Flatness of end face: L / 10
End face parallelism: 30“
Perpendicularity between the end face and the rod shaft: 5 ', and the end face is coated with antireflective film
Surface quality: 10-5
End face chamfer: 0.15 ± 0.05 mm, 45 °± 5 °
Reflectivity ≤ 0.25% @2.94 μ m
Laser transition: 4i11 / 2-4i13 / 2
Emission section: 3 × 10-20 cm2
Pump band: 600 ~ 800 nm

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