Cr4+:YAG (Chromium-Doped Yttrium Aluminum Garnet) Crystal
Cr4+:YAG Passive Q-Switch/Gain Medium,Chemically Stable/High Damage Threshold/Thermal Conductivity,Compact0.8–1.2μm Nd/Yb Pulse Control without External HV,LiDAR,Ranging,Research.
Specification Snapshot
Surface Flatness [@632nm]
λ/8@632nm
Wavefront Distortion [@632nm]
λ/4@632nm
Surface Quality
44839
Vertical
5′
Maximum Dimensions
2*2-15*15mm×20mm
Crystal Structure
Cubic garnet
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Overview
Cr4+:YAG Passive Q-Switch/Gain Medium,Chemically Stable/High Damage Threshold/Thermal Conductivity,Compact0.8–1.2μm Nd/Yb Pulse Control without External HV,LiDAR,Ranging,Research.
Specifications
| Parameter | Value |
|---|---|
| Orientation Tolerance | <0.5 ° |
| Thickness / Diameter Tolerance | ±0.05 mm |
| Surface Flatness [@632nm] | λ/8@632nm |
| Wavefront Distortion [@632nm] | λ/4@632nm |
| Surface Quality | 44839 |
| Parallel | 10″ |
| Vertical | 5′ |
| Chamfer | <0.1×45° |
| HR Coating [@1340nm] | ≤0.2%(@1340nm) |
| Maximum Dimensions | 2*2-15*15mm×20mm |
| Chemical Formula | Cr⁴⁺:Y₃Al₅O₁₂ |
| Crystal Structure | Cubic garnet |
| Lattice Parameters | 12.01 Å |
| Mohs Hardness | 8.5 |
| Density | 4.56 g/cm³ |
| Melting Point | 1970 °C |
| Thermal Conductivity [@25°C] | 0.14 W x cm-1 x K-1 |
| Specific Heat | 0.59 J·g-1·K-1 |
| Thermal Expansion Coefficient [<111>] | 7.8 x 10-6 |
| Thermal Expansion Coefficient [<100>] | 8.2 x 10-6 |
| Thermal Expansion Coefficient [<110>] | 7.7 x 10-6 |
| Refractive Index [@1064nm] | 1.82 |
| Ground-State Absorption Cross Section σs1 | 4.3x10-18 |
| Excited-State Absorption Cross Section σs2 | 8.2x10-19 |
| Fluorescence Lifetime | 3.4 μs |
| Young's Modulus | 3.17 kg/mm² × 104 kg/mm² |
| Thermal-Shock Resistance | 790 Wm⁻¹ |
| Emission Wavelength | 1350nm~1600nm |
| Absorption Coefficient | 1.0cm⁻¹~7cm⁻¹ |
Applications
Passive Q-Switches; Multiband Lasers; LIDAR Remote Sensing
Key Features
Reliable Chemical Stability; Good Heat Conduction; High Damage Threshold; Long-Life High-Power Solid-State Passive Q-Switch
Datasheet
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Supplier Information
Founded in 2012, Jingzhong Optoelectronics is a national high-tech enterprise focusing on the research, development and production of ultrafast solid-state lasers. With over ten years of deep technical accumulation in laser core module manufacturing, the company has built a full-chain independent innovation system from key materials to high-end lasers, providing stable, reliable, and customized 'ultrafast laser AI+' solutions for commercial space, controlled nuclear fusion, high-end medical, industrial micro-machining and other fields. Its products are exported to more than 30 countries and have long served top-tier enterprises and research institutions globally. Through industry-university-research collaboration with Shanghai Jiao Tong University and Shandong University, it has built a high-level R&D and production team with over 45% of employees holding master's or doctoral degrees, owns more than 60 independent intellectual property rights for core components, and has been recognized as a 'Specialized and Sophisticated' enterprise and 'Gazelle' enterprise. It has established innovation platforms such as Shandong Provincial Key Laboratory, and is committed to becoming a global leader in ultrafast lasers in the intelligent era.
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