Er:YSGG
Er:YSGG, also called erbium-doped yttrium scandium gallium garnet, is a laser crystal with excellent overall performance. It is widely used in optical communication, oral-disease applications, and laser medicine. It offers high thermal conductivity, stable physical and chemical properties, and high quantum efficiency. It can be used in Er:YSGG lasers, solid-state high-frequency pulsed lasers, and water lasers.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal | Er³⁺:YSGG |
| Crystal Structure | Cubic |
| Doping concentration | 30-50 at.% |
| Space group | Oh10 |
| Lattice constant | 12.42 Å |
| Density | 5.2 g/cm³ |
| Mohs hardness | >7 |
| Coefficient of thermal expansion | 8.1×10⁻⁶ K⁻¹ |
| Orientation | <001> <111> |
| Thermal conductivity | 0.079W cm⁻¹ K⁻¹ |
| Refractive Index [@1.064 µm] | 1.926@1.064 µm |
| Generated wavelength | 2.797; 2.823µm |
| Rod diameter | Up to 15 mm |
| Diameter Tolerance | +0.0000 / -0.0020 |
| Length Tolerance | +0.040 / -0.000 |
| Tilt/wedge angle | ±5 min |
| Chamfer [@45°] | 0.005 ±0.003@45° |
| Parallelism | 30 arcsec |
| Flatness [@633 nm] | λ/10 @ 633 nm |
| Perpendicularity | 5 arc minutes |
| Surface Quality | 10-5 S-D |
| Wavefront distortion [@633nm] | λ/2 per inch@633nm |
Key Features
Datasheet
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