YAG+Cr,Tm,Ho:YAG+YAG
Our YAG+Cr,Tm,Ho:YAG+YAG bonded crystal is formed by bonding pure YAG to both ends of Cr,Tm,Ho:YAG, improving overall laser performance. Cr,Tm,Ho:YAG has thermal conductivities of 14W/m/K at 20°C and 10.5W/m/K at 100°C. Pure YAG has thermal conductivities of 14W/m/K@20℃ and 10.5W/m/K@100℃. The bonded YAG+Cr,Tm,Ho:YAG+YAG structure reduces thermal effects and pump-induced thermal lensing, offering good chemical stability, durability, UV resistance, thermal conductivity, a high damage threshold (>500MW/cm²) and easy handling. It also improves beam quality, output efficiency at 2100nm, output stability and laser service life. Crylink uses surface-activated bonding, a low-temperature or room-temperature technique characterized by surface cleaning and activation. Before bonding, bombarding the bonding surfaces with fast atoms or ion beams increases bond strength, enabling high-quality bonding among inorganic materials, metals and semiconductors. Compared with high-temperature thermal bonding, surface-activated bonding provides stronger interfacial bonding and better control of optical absorption loss and surface-figure changes. Thermal diffusion bonding leaves surface impurities trapped at the interface. Surface-activated bonding removes polishing residues, organic contamination and surface oxides, breaks chemical bonds and increases activation energy. The resulting YAG+Cr,Tm,Ho:YAG+YAG crystals have high bond strength, low interfacial absorption loss, generally below 20ppm, and small surface-figure changes after bonding (<lamda/8). They are available as rods, slabs, waveguides or sandwich structures. Various end coatings are available, including AR/AR@2080nm on both ends, or S1:HR@2080nm and S2:PR@2080nm. YAG+Cr,Tm,Ho:YAG+YAG bonded crystals are widely used in medicine, lidar and military applications.
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Overview
Specifications
| Parameter | Value |
|---|---|
| concentrations [Materials：Cr,Tm,Ho:YAG] | Cr:0.3-1.2%, Tm:5-6%, Ho:0.3-0.4% |
| Structure [Materials：YAG] | Rods/Slabs/Sandwich/Waveguide/ |
| End-face Configuration [Materials：YAG] | Flat/Convex/Wedge |
| Side Configuration [Materials：YAG] | Polish/Fine Ground |
| Coating [Materials：YAG / Side Configuration；YAG：AR@2080nm / @2080nm] | AR@2080nm |
| Coating [Materials：YAG / Side Configuration；YAG：PR@2080nm / @2080nm] | HR@2080nm |
| Coating [Materials：YAG / Side Configuration；YAG：HR@2080nm / @2080nm] | PR@2080nm |
Datasheet
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