Yb:YAG
Yb:YAG (ytterbium-doped yttrium aluminum garnet, Yb:Y3Al5O12) is a promising solid-state laser medium, particularly for diode pumping compared with conventional Nd-doped systems. Its broader absorption bandwidth than Nd:YAG reduces temperature-management requirements for diode lasers. It has a longer upper-state lifetime and 3-4 times lower heat load per unit pump power. Yb:YAG at 1030nm can replace Nd:YAG at 1064nm, while its 515nm second harmonic can replace bulky 514nm argon-ion lasers. Advantages include very low local overheating (<11%), high slope efficiency, broad absorption around 8nm @940nm, no excited-state absorption or upconversion, InGaAs diode pumping at 940nm or 970nm, high thermal conductivity and mechanical strength, and excellent optical quality.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Energy-Level Transition | 2F5/2→2F7/2 |
| Laser Wavelength | 1030 nm |
| Photon Energy [1030 nm] | 1.93×10-19 J @ 1030 nm |
| Emission Spectrum Width | 9 nm |
| Emission Cross Section | 2.0×10-20 cm2 |
| Fluorescence Lifetime | 1.2 ms |
| Diode Pump Band | 940 nm or 970 nm |
| Pump Absorption Bandwidth [940 nm] | 8 nm |
| Refractive Index | 1.82 |
| Thermo-Optic Coefficient | 9×10-6 /℃ |
| Loss Coefficient | 0.003 cm-1 |
| Dopant Concentration | Yb：0.5~20 at.% |
| Dimensions | Diameter: 2~20 mm; length: 5~150 mm; customized to customer requirements |
| Dimensional Tolerance | Diameter tolerance: ±0.1mm; length tolerance: ±0.5mm |
| Surface Finish [With Reference to Standard MIL-PRF-13830B] | 10/5, with Reference to Standard MIL-PRF-13830B |
| Transmitted Wavefront Distortion [633 nm] | ≤λ/8 @ 633 nm |
| Flatness [633 nm] | λ/8 @ 633 nm |
| Parallelism | 20″ |
| Perpendicularity | ≤15′ |
| Extinction Ratio | ≥28 dB |
| Rod Surface Finish | Frosted Finish: No. 400 Abrasive |
| Chamfer [45°] | ≤0.2 mm×45° |
| Antireflection Coating | AR-1030/940 nm，R＜0.2% @ 1030 nm，R＜0.5% @ 940 nm |
| Single-Pass Loss | ＜3×10-3 cm-1 |
| Local Overheating | ＜11% |
Applications
Datasheet
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Supplier Information
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