Er:YAG Crystal

Short Description:

Erbium Doped Yttrium Aluminum Garnet (Er:YAG) lases at 2940 nm which is the same as hydroxyl absorption peak. Therefore the rays produced by Er:YAG can be strongly absorbed by biological tissues which make Er:YAG lasers being widely used in medical area, such as dental (hard tissues), orthopedics, etc. Er:YAG produced by WISOPTIC has high quality of good internal optical uniformity and high slope efficiency.

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Main Specifications
Dimensions	Length	50 ~ 120 mm (± 0.5 mm)
	Diameter	3 ~ 6 mm (+0.00, -0.05 mm)
Er Concentration	~ 50 atm%
Orientation	[111] (± 1°)
Distinction Ratio	≥ 25 dB
Wavefront Distortion	λ/8 per inch @ 1064 nm
Barrel Finish	Fine ground (400#)
End Surface Parallelism	≤ 10”
Perpendicularity	≤ 5’
End Surface Flatness	λ/10 @ 633 nm
End Surface Quality	10-5 [s-d] (MIL-PRF-13830B)
Chamfer	0.15 ± 0.05 mm @ 45°
Coating	AR (R<0.25% @ 2940 nm)