YAG+Yb:YAG+YAG
Our YAG+Yb:YAG+YAG bonded crystal is formed by bonding pure YAG to both ends of Yb:YAG, improving overall Yb:YAG laser performance. Yb:YAG has a thermal-conduction coefficient of 0.14 W/cm/°K@25°C, while pure YAG has thermal conductivities of 14W/m/K@20℃ and 10.5W/m/K@100℃. The bonded YAG+Yb:YAG+YAG structure reduces thermal effects and pump-induced thermal lensing, offering high quantum efficiency, a simple crystal spectrum, no excited-state absorption or energy upconversion, high doping capability, good thermal management and a broad absorption band that couples efficiently to diode pump wavelengths. 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+Yb: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 can be provided, including AR/AR@1030nm on both faces. YAG+Yb:YAG+YAG bonded crystals are widely used in holography, interferometry and optical storage, and in efficient, high-power diode-pumped solid-state lasers.
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Overview
Specifications
| Parameter | Value |
|---|---|
| concentrations [Materials：Yb:YAG] | 1%, 2%,2,5%, 5%,7.5%, 10% |
| Structure [Materials：YAG / Structure；Yb:YAG：Rods/Slabs/Sandwich/Waveguide/ / Structure；YAG：Rods/Slabs/Sandwich/Waveguide/] | Rods/Slabs/Sandwich/Waveguide/ |
| Structure [Materials：Yb:YAG / Structure；YAG：Rods/Slabs/Sandwich/Waveguide/] | Rods/Slabs/Sandwich/Waveguide/ |
| Structure [Materials：YAG / Structure；YAG：Rods/Slabs/Sandwich/Waveguide/ / Structure；Yb:YAG：Rods/Slabs/Sandwich/Waveguide/] | Rods/Slabs/Sandwich/Waveguide/ |
| End-face Configuration [Materials：YAG / End-face Configuration；Yb:YAG：Flat/Convex/Wedge / End-face Configuration；YAG：Flat/Convex/Wedge] | Flat/Convex/Wedge |
| End-face Configuration [Materials：Yb:YAG / End-face Configuration；YAG：Flat/Convex/Wedge] | Flat/Convex/Wedge |
| End-face Configuration [Materials：YAG / End-face Configuration；YAG：Flat/Convex/Wedge / End-face Configuration；Yb:YAG：Flat/Convex/Wedge] | Flat/Convex/Wedge |
| Side Configuration [Materials：YAG / Side Configuration；Yb:YAG：Polish/Fine Ground / Side Configuration；YAG：Polish/Fine Ground] | Polish/Fine Ground |
| Side Configuration [Materials：Yb:YAG / Side Configuration；YAG：Polish/Fine Ground] | Polish/Fine Ground |
| Side Configuration [Materials：YAG / Side Configuration；YAG：Polish/Fine Ground / Side Configuration；Yb:YAG：Polish/Fine Ground] | Polish/Fine Ground |
| Coating available [Materials：YAG / Coating available；YAG：AR@1030nm / @1030nm] | AR@1030nm |
Key Features
Datasheet
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