Nd:YAG

Nd:YAG

Supplier
Dj-laser
Category
Laser Crystals
Origin
China

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

ParameterValue
Dopant ConcentrationNd:0.1∽1.3at%
Crystal Orientation<111> or <100>±5°
Product DimensionsDiameter ≤30mm, length ≤220mm; slabs and discs customizable to customer requirements.
Dimensional Tolerance - Diameter+/-0.05mm
Dimensional Tolerance - Length+/-0.5mm
Cylindrical ProcessingFine grinding, polishing and threading
End-Face ProcessingFlat, 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 wavelength808nm
Special Concentration [Plate form]Plate-form concentration up to 1.8at%
SpecialSurface 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 Wavelength1064nm
Laser Transition⁴F₃/₂—>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 Bandwidth1nm
Main Pump Band Range400∽850nm
Refractive Index [1064nm]1.8197@1064nm
Crystal StructureCubic crystal system
Lattice Constant12.01Å
Melting Point1970℃
Mohs Hardness8.5
Density4.56±0.04g/cm³
Specific heat [0-20℃]0.59J/g.cm³@0-20℃
Elastic modulus310GPa
Young's Modulus3.17 Kg/mm² × 104 Kg/mm²
Poisson's ratio0.3
Tensile strength0.13∽0.26GPa
Thermal Conductivity14W/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 Resistance790W/m
Thermo-Optic Coefficient dn/dT7.3×10﹣⁶/K
SolubilityInsoluble in water, slightly soluble in common acids

Datasheet

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Supplier Information

Dj
Dj-laser
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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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