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Er:YAG Crystal for 2940nm Laser
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.
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) | |
