Yb:YAG
Yb:YAG is an important diode-pumped laser crystal, better suited to diode pumping than traditional Nd-ion-doped laser materials. Compared with commonly used Nd:YAG, Yb:YAG has a broad diode-pump absorption band that effectively reduces laser-diode thermal-management requirements; the source sentence is truncated.
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Overview
Yb:YAG is an important diode-pumped laser crystal, better suited to diode pumping than traditional Nd-ion-doped laser materials. Compared with commonly used Nd:YAG, Yb:YAG has a broad diode-pump absorption band that effectively reduces laser-diode thermal-management requirements; the source sentence is truncated.
Specifications
| Parameter | Value |
|---|---|
| Dopant Concentration | Yb: 0.5~50at% |
| Crystal Orientation | [100] or [111], deviation within 5° |
| Wavefront Distortion | ≤ 0.125λ/25mm |
| Extinction Ratio | ≥28dB |
| Crystal Rod Dimensions | Diameter: 2~20mm, length: 2~150mm; customizable to customer requirements |
| Dimensional Tolerance | Diameter :+0.00/-0.05mm, Length : ± 0.5mm |
| Cylindrical Processing | Fine ground with 400# abrasive or polished |
| End-Face Parallelism | ≤10" |
| End-Face Perpendicularity to Rod Axis | ≤5′ |
| End-Face Flatness | λ/10 @632.8nm |
| Surface Quality | 10-5 (MIL-O-13830A) |
| Edge Bevel | 0.15±0.05mm |
| Antireflection Coating Reflectance | ≤ 0.25% @1030nm |
| Coating Laser Damage Threshold | ≥500MW/cm² |
| Laser Transition | ²F_5/2→²F_7/2 |
| Optical and Spectral Characteristics - Laser Wavelength | 1030nm |
| Photon Energy | 1.93×10⁻¹⁹J@1030nm |
| Emission Linewidth | 9nm |
| Emission Cross-Section | 2.0×10⁻²⁰cm² |
| Optical and Spectral Characteristics - Fluorescence Lifetime | 1.2 ms |
| Diode Pump Absorption Wavelength | 940nm or 970nm |
| Pump Absorption Bandwidth | 8 nm |
| Optical and Spectral Characteristics - Refractive Index | 1.82@1030nm |
| Crystal Structure | Cubic crystal system |
| Lattice Constant | 12.01 Å |
| Melting Point | 1970℃ |
| Mohs Hardness | 8.5 |
| Density | 4.56±0.04g/cm³ |
| Specific heat | 0.59J/g.cm³@0-20℃ |
| Elastic modulus | 310GPa |
| Young's modulus | 3.17×10⁴Kg/mm² |
| Poisson's ratio | 0.3 |
| Tensile strength | 0.13~0.26GPa |
| Thermal expansion coefficient | [100] Direction :8.2×10⁻⁶/K@ 0~250℃ |
| Thermal expansion coefficient | [110] Direction :7.7×10⁻⁶/K@0~250℃ |
| Thermal expansion coefficient | [111] Direction :7.8×10⁻⁶/K@0~250℃ |
| Thermal Conductivity | 14W/m/K@20℃ |
| Thermal Conductivity | 10.5W/m/K@100℃ |
| Thermo-Optic Coefficient dn/dT | 7.3×10⁻⁶/K |
| Thermal shock resistance | 790W/m |
| Solubility | Insoluble in water, slightly soluble in common acids |
Key Features
High slope efficiency; high optical quality; high thermal conductivity and mechanical strength; no excited-state absorption or upconversion; lower heat load per unit pump power than Nd:YAG; diode-pump absorption bandwidth around 8nm@940nm; suitable for common high-power InGaAs laser diodes at 940nm or 970nm.
Datasheet
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Supplier Information
Shanghai Blue Crystal Optoelectronic Technology Co., Ltd., established in January 2010, specializes in the R&D, production, processing, and sales of laser crystals (Nd:YAG, YAP), scintillation crystals (Ce:YAG), optical crystals, and various optical components. Located in Qingpu District, Shanghai, the company boasts a high-level scientific research and innovation team and skilled precision processing personnel. Its main business includes the production and precision micro-machining of laser crystals, scintillation crystals, optical crystals, and other optical products, which are widely applied in industrial, medical, military, and scientific research fields, providing high-quality optoelectronic functional materials and precision optical components. Adhering to the spirit of 'integrity, pragmatism, quality, and innovation', the company is committed to technological innovation and first-class service, striving to build a high-end optoelectronic components brand and become a top optical component supplier both domestically and internationally.
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