Yb:YAG+Sapphire
Our Yb:YAG+Sapphire bonded crystal is made by bonding Sapphire to one end of Yb:YAG, effectively improving the overall performance of the Yb:YAG laser. The thermal conductivity of Yb:YAG is 0.14 W/cm/°K@25°C, and that of Sapphire is 25.12W/m/k (@100℃). Bonding the two ends to form YAG+Sapphire effectively reduces thermal effects in Yb:YAG and thermal lensing during laser pumping. It offers high slope efficiency, a low quantum defect and a simple energy-level structure. It improves beam quality and 1030nm laser output efficiency, increases output stability and extends laser service life. Crylink uses surface-activated bonding, a bonding technology performed at low or room temperature and characterized by surface cleaning and activation. Bombardment of the bonding surfaces with fast atoms or an ion beam before bonding effectively increases bonding strength and enables high-quality bonding between inorganic materials, metals and semiconductor materials. Compared with high-temperature thermal bonding, surface-activated bonding provides greater interfacial bonding strength and better control of optical absorption loss and surface-figure change. Impurities on thermally diffusion-bonded surfaces cannot be removed and remain trapped at the bonded interface. Surface-activated bonding can remove polishing residues, organic contamination and surface oxide layers, break material chemical bonds and increase activation energy. The manufactured YAG+Sapphire bonded crystals have high bond strength, low absorption loss at the bonded interface (generally below 20ppm), and small surface-figure changes at the interface (surface figure <lamda/8 after bonding). They can be made as rods, slabs, waveguides or sandwich structures. Various coatings are available on the two ends, such as AR/AR@1030nm on the end faces. Yb:YAG+Sapphire bonded crystals are widely used in holography, interferometry and optical storage, as well as 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：Yb:YAG / Structure；Sapphire：Rods/Slabs/Sandwich/Waveguide/] | Rods/Slabs/Sandwich/Waveguide/ |
| Structure [Materials：Sapphire / Structure；Yb:YAG：Rods/Slabs/Sandwich/Waveguide/] | Rods/Slabs/Sandwich/Waveguide/ |
| End-face Configuration [Materials：Yb:YAG / End-face Configuration；Sapphire：Flat/Convex/Wedge] | Flat/Convex/Wedge |
| End-face Configuration [Materials：Sapphire / End-face Configuration；Yb:YAG：Flat/Convex/Wedge] | Flat/Convex/Wedge |
| Side Configuration [Materials：Yb:YAG / Side Configuration；Sapphire：Polish/Fine Ground] | Polish/Fine Ground |
| Side Configuration [Materials：Sapphire / Side Configuration；Yb:YAG：Polish/Fine Ground] | Polish/Fine Ground |
| Coating available [Materials：Yb:YAG / Coating available；Sapphire：AR@1030nm / @1030nm] | AR@1030nm |
| Coating available [Materials：Sapphire / Coating available；Yb:YAG：AR@1030nm / @1030nm] | AR@1030nm |
Key Features
Datasheet
Supplier Information
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