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Introduction:
Ytterbium-doped yttrium aluminum garnet crystal (abbreviated as Yb:YAG crystal, chemical formula: Yb:Y₃Al₅O₁₂) is an ideal gain medium for high-power compact solid-state lasers. Diode-pumped lasers utilizing Yb:YAG crystal have reached an average output power of the kilowatt level.
In recent years, driven by the application demands for ultrashort, ultrafast, high-repetition-rate and high-energy lasers, researchers have developed diversified crystal configurations beyond the traditional rod structure, such as slab, strip and disk shapes. The market requires increasingly larger sizes of Yb:YAG laser crystal materials, especially serving as the core gain medium for high-power solid-state lasers.
Nanjing Colourful Optoelectronic Technology provides slab and bulk Yb:YAG crystals with different doping concentrations, with maximum dimensions up to 70×70×20 mm³. By adopting a special feeding method, gradient concentration growth of slab crystals can be realized. We also offer customized processing of Yb:YAG slab crystals in various sizes and specifications according to customers’ actual requirements.
Features & Applications
Features
Uniform doping concentration
Large available size
Core-free and side-core-free
Cost-effective
Excellent machinability
Applications
High-power diode-pumped lasers
Disk lasers
Physical and Chemical Properties
| Parameter | Specification |
|---|---|
| Chemical Formula | Yb:Y₃Al₅O₁₂ |
| Doping Concentration | 0.5～50 at% |
| Growth Direction | [100] or [111] |
| Mohs Hardness | 8.1 |
| Absorption Bandwidth | 0.9–1.1 μm |
| Central Wavelength | 1.03 μm |
| Fluorescence Lifetime | 1.08 ms |
Standard Products & Processing Specifications
| Item | Technical Index |
|---|---|
| Dimension | (70×70)×(5~20) mm³ or customized |
| Parallelism | 30 arcsec |
| Perpendicularity | 15 arcmin |
| Surface Quality | 20-10 |
| Flatness | λ/2 |
| Wavefront Distortion | λ/4 |
| Effective Aperture | 90% |
| Edge Chipping | ＜ 0.1 mm |
| Chamfer | ＜ 0.1 mm×45° |
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