Er:YAG
Erbium-doped yttrium aluminum garnet (Er:YAG) generates laser emission at 2940nm. This wavelength lies at the hydroxyl absorption peak and is strongly absorbed by biological tissue.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Energy-Level Transition | 4I3/2→4I11/2 |
| Laser Wavelength | 2940 nm |
| Photon Energy [2.940 µm] | 6.75×10-20 J @ 2.940 µm |
| Emission Cross Section | 3×10-20 cm2 |
| Refractive Index [2.940 µm] | 1.79 @ 2.940 µm |
| Pump Band | 600~800 nm |
| Dopant Concentration | Er：~50 at.% |
| Rod Dimensions | Diameter: 3~6 mm; length: 50~120 mm; dependent on customer requirements |
| Dimensional Tolerance | Diameter tolerance: ±0.1mm; length tolerance: ±0.5mm |
| Surface Finish [With Reference to Standard MIL-PRF-13830B] | 10/5, with Reference to Standard MIL-PRF-13830B |
| Wavefront Distortion [633 nm] | λ/8 @ 633 nm |
| Flatness [633 nm] | λ/8 @ 633 nm |
| Parallelism | ≤30" |
| Perpendicularity | ≤15′ |
| Chamfer [45°] | ≤0.2 mm×45° |
| Extinction Ratio | ≥25 dB |
| Antireflection Coating Reflectance [2940 nm] | ≤0.2% @ 2940 nm |
Applications
Key Features
Datasheet
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Supplier Information
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