Ho：YAG
Ho:YAG is a 2μm band solid-state laser crystal.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material Processing Parameters-Ho Doping Concentration | 0.5 at%~2.0 at% |
| Material Processing Parameters-Product Model Specifications-Transverse Dimensions | 2~20 mm |
| Material Processing Parameters-Product Model Specifications-Length [Customizable] | 1~150 mm (customizable) |
| Material Processing Parameters-Crystal Orientation | <111> or ±5 ° |
| Material Processing Parameters - Dimensional Tolerance - Diameter (Φ) | +0/-0.04 mm |
| Material Processing Parameters - Dimensional Tolerance - Length (L) | +0.5/-0 mm |
| Material Processing Parameters - Perpendicularity | ≤5 ′ |
| Material Processing Parameters - Parallelism | ≤10 ″ |
| Material Processing Parameters-Chamfer | 0.15±0.05 mm |
| Material Processing Parameters-Clear Aperture | >95 % |
| Material Processing Parameters-Surface Finish [Standard=MIL-PRF-13830B] | 10/5(MIL-PRF-13830B) |
| Material Processing Parameters-Cylindrical Machining | Fine Grinding, Polishing |
| Material Processing Parameters-End Face Flatness [632.8nm] | ≤λ/10@632.8 nm |
| Material Processing Parameters-Wavefront Distortion [632.8nm] | ≤λ/10 per inch@632.8 nm |
| Material Processing Parameters-Extinction Ratio | ≥30 dB |
| Material Processing Parameters-Coating [2090nm; Film Type=Anti-reflection Coating] | R<0.2 %@2090 nm |
| Material Processing Parameters-Coating [1908nm; Film Type=Anti-reflection Coating] | R<1 %@1908 nm |
| Material Processing Parameters - Coating | Partial Reflective Coating: Customized according to customer requirements |
| Material Processing Parameters - Coating [2090nm] | High-Reflective Coating: R>99.8 %@2090 nm |
| Material Processing Parameters - Damage Threshold [2090nm;Pulse Width=10ns;Repetition Rate=10Hz;2090nm,10ns,10Hz] | ≥500 MW/cm² @2090 nm,10 ns,10 Hz |
| Material Spectral Parameters-Laser Transition | ⁵ I₇ → ⁵ I₈ |
| Material Spectral Parameters-Laser Wavelength | 2090 nm,2120 nm |
| Material Spectral Parameters - Emission Linewidth [1064nm] | 4.5Å@1064 nm |
| Material Spectral Parameters - Emission Cross-Section [1at%Nd] | 2.7~8.8×10⁻¹⁹ cm² @1at%Nd |
| Material Spectral Parameters - Fluorescence Lifetime | 8~15 ms (varies with concentration and temperature) |
| Material Spectral Parameters - Diode Pump Absorption Wavelength | 1908 nm |
| Material physical and chemical parameters - Crystal structure | Cubic crystal system |
| Material physical and chemical parameters - Melting point | 1970 ℃ |
| Material physical and chemical parameters - Density | 4.56±0.04 g/cm³ |
| Material physical and chemical parameters - Specific heat [0~20℃] | 0.59 J/g.cm³ @0~20 ℃ |
| Material physical and chemical parameters - Mohs hardness | 8.5 |
| Material Physical and Chemical Parameters-Poisson's Ratio | 0.25 |
| Material Physical and Chemical Parameters - Thermal Expansion Coefficient (<111>) | 7.8×10⁻⁶ /K |
| Material Physical and Chemical Parameters-Thermal Conductivity [20℃] | 13 W/m/K@20 ℃ |
| Material Physical and Chemical Parameters - Refractive Index | 1.81 |
| Material Physical and Chemical Parameters - Stimulated Emission Cross-Section | 1.2×10⁻²⁰ cm² |
| Material Physical and Chemical Parameters - Single-Pass Loss [2090nm] | 0.003 cm⁻¹ @2090 nm |
Applications
Key Features
Datasheet
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