Nd:YAG
The source describes Nd:YAG as the laser crystal with the best overall performance and greatest application importance, widely used in industry, medicine and research. It offers high gain, low threshold, high efficiency, high optical quality, low loss, high mechanical strength, excellent thermal conductivity and thermal-shock resistance. It suits continuous-wave, pulsed, Q-switched, mode-locked, frequency-doubled and other laser modes, as well as high-average-power solid-state lasers.
Specification Snapshot
Laser Wavelength
1064nm
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Overview
The source describes Nd:YAG as the laser crystal with the best overall performance and greatest application importance, widely used in industry, medicine and research. It offers high gain, low threshold, high efficiency, high optical quality, low loss, high mechanical strength, excellent thermal conductivity and thermal-shock resistance. It suits continuous-wave, pulsed, Q-switched, mode-locked, frequency-doubled and other laser modes, as well as high-average-power solid-state lasers.
Specifications
| Parameter | Value |
|---|---|
| Dopant Concentration | Nd:0.1∽1.3at% |
| Crystal Orientation | <111> or <100>±5° |
| Product Dimensions | Diameter ≤30mm, length ≤220mm; slabs and discs customizable to customer requirements. |
| Dimensional Tolerance - Diameter | +/-0.05mm |
| Dimensional Tolerance - Length | +/-0.5mm |
| Cylindrical Processing | Fine grinding, polishing and threading |
| End-Face Processing | Flat, inclined surface, bevel angle, spherical surface |
| End-Face Parallelism | ≤10" |
| End-face perpendicularity to rod axis | ≤5′ |
| End-Face Flatness (Surface Figure) [632.8nm] | λ/10 @632.8nm |
| Surface Quality ( Surface Finish ) [MIL-O-13830A] | 10-5(MIL-O-13830A) |
| Edge Bevel ( Chamfer ) | 0.15±0.05mm |
| Coating [1064nm] | AR/AR@1064nm; R<0.2%; HR@1064nm; R>99.8%; other coating systems customizable |
| Coating Laser Damage Threshold [1064nm;10ns;10Hz] | ≥1.0GW/cm²; 10J/cm²(1064nm,10ns,10Hz) |
| Diode pump absorption wavelength | 808nm |
| Special Concentration [Plate form] | Plate-form concentration up to 1.8at% |
| Special | Surface Metallization |
| Transmitted Wavefront Distortion [632.8nm] | ≤0.1λ/inch@632.8nm |
| Transmitted Wavefront Distortion [632.8nm] | ≤0.05λ/inch@632.8nm |
| Transmitted Wavefront Distortion [632.8nm] | ≤0.15λ/inch@632.8nm |
| Transmitted Wavefront Distortion [632.8nm] | ≤0.8λ/inch@632.8nm |
| Transmitted Wavefront Distortion [632.8nm] | ≤0.20λ/inch@632.8nm |
| Transmitted Wavefront Distortion [632.8nm] | ≤0.30λ/inch@632.8nm |
| Transmitted Wavefront Distortion [632.8nm] | ≤0.125λ/inch@632.8nm |
| Transmitted Wavefront Distortion [632.8nm] | ≤0.35λ/inch@632.8nm |
| Transmitted Wavefront Distortion [632.8nm] | ≤0.16λ/inch@632.8nm |
| Extinction Ratio [φ2-φ5mm; standard grade] | ≥30dB |
| Extinction Ratio [φ2-φ5mm; preferred grade] | ≥35dB |
| Extinction Ratio [Φ6-φ8mm; standard grade] | ≥28dB |
| Extinction Ratio [Φ6-φ8mm; preferred grade] | ≥32dB |
| Extinction Ratio [Φ9-φ12.7mm; standard grade] | ≥25dB |
| Extinction Ratio [Φ9-φ12.7mm; preferred grade] | ≥30dB |
| Extinction Ratio [Φ13-φ15mm; standard grade] | ≥22dB |
| Extinction Ratio [Φ13-φ15mm; preferred grade] | ≥28dB |
| Extinction Ratio [Φ16-φ25mm; standard grade] | ≥20dB |
| Extinction Ratio [Φ16-φ25mm; preferred grade] | ≥25dB |
| Laser Wavelength | 1064nm |
| Laser Transition | ⁴F₃/₂—>⁴I₁₁/₂ |
| Emission Cross-Section [1at%Nd] | 2.7∽8.8x10⁻¹⁹cm²@1at%Nd |
| Emission linewidth [1064nm] | 4.5Å @1064nm |
| Fluorescence Lifetime [1at%Nd] | 230μs@1at%Nd |
| Photon Energy [1064nm] | 1.86x10⁻¹⁹J@1064nm |
| Pump Absorption Bandwidth | 1nm |
| Main Pump Band Range | 400∽850nm |
| Refractive Index [1064nm] | 1.8197@1064nm |
| Crystal Structure | Cubic crystal system |
| Lattice Constant | 12.01Å |
| Melting Point | 1970℃ |
| Mohs Hardness | 8.5 |
| Density | 4.56±0.04g/cm³ |
| Specific heat [0-20℃] | 0.59J/g.cm³@0-20℃ |
| Elastic modulus | 310GPa |
| Young's Modulus | 3.17 Kg/mm² × 104 Kg/mm² |
| Poisson's ratio | 0.3 |
| Tensile strength | 0.13∽0.26GPa |
| Thermal Conductivity | 14W/m/K@20℃; 10.5W/m/K@100℃ |
| Thermal Expansion Coefficient - [100] Direction [0∽250℃] | 8.2×10﹣⁶/K @0∽250℃ |
| Thermal Expansion Coefficient - [110] Direction [0∽250℃] | 7.7×10﹣⁶/K @0∽250℃ |
| Thermal Expansion Coefficient - [111] Direction [0∽250℃] | 7.8×10﹣⁶/K @0∽250℃ |
| Thermal Shock Resistance | 790W/m |
| Thermo-Optic Coefficient dn/dT | 7.3×10﹣⁶/K |
| Solubility | Insoluble in water, slightly soluble in common acids |
Datasheet
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Supplier Information
Chengdu Dongjun Laser Co., Ltd. was founded on April 27, 2001, located in Pujiang Eco-Industrial Park, Chengdu, covering 112 mu with 22,000 sqm building area, is a national high-tech enterprise specializing in R&D and production of laser crystal and other artificial crystal materials. Main products include YAG series laser crystals, special optical windows, piezoelectric crystals, functional ceramics, optical components and laser device assemblies, widely applied in industrial processing, medical aesthetics, R&D, 5G communication, laser projection, laser lighting, medical & security CT, etc. The company holds over 50 patents and has established provincial technology center and academician workstation.
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