Nd:YAG+V:YAG
Our Nd:YAG+V:YAG bonded crystal is formed by bonding V:YAG to one end of Nd:YAG, effectively improving the overall laser performance of Nd:YAG and V:YAG. Nd:YAG has thermal conductivities of 14W/m/K at 20º C and 10.5W/m/K at 100ºC, while V:YAG has a thermal conductivity of 17W/m/K. Bonding the ends to form Nd:YAG+V:YAG enables passive Q-switched microchip laser output at 1338 nm. Under continuous pumping, maximum output power is 0.73 W with stable Q-switched pulses of 139 ns. Under quasi-continuous pumping, passive mode-locked Q-switched output reaches 1.01 W with a pulse width of 80 ns, while individual pulses within the mode-locked train are approximately 70 ps. Nd:YAG+V:YAG supports compact, high-power pulsed output at 1 338 nm, and quasi-continuous pumping reduces thermal effects to enable higher laser power. 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 Nd:YAG+V:YAG crystals have high bond strength, low interfacial absorption loss, generally below 20ppm, and small surface-figure changes after bonding (<lamda/8). Initial V:YAG transmission is 30–99%. Bonded crystals are available as rods, slabs, waveguides or sandwich structures. Various end coatings are available, including AR/AR@1319nm+808nm on both ends, or S1:HR@1319nm&AR@808nm and S2:PR@1319nm&HR@808nm. Nd:YAG+V:YAG bonded crystals are widely used in biophysics, medicine, military applications, machinery, research and construction.
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Overview
Specifications
| Parameter | Value |
|---|---|
| concentrations [Materials：Nd:YAG] | 0.6%\1.0%\1.1% |
| Initial Transmission [Materials：V:YAG] | 30～99% |
| Structure [Materials：Nd:YAG / Structure；V:YAG：Rods/Slabs/Sandwich/Waveguide/] | Rods/Slabs/Sandwich/Waveguide/ |
| Structure [Materials：V:YAG / Structure；Nd:YAG：Rods/Slabs/Sandwich/Waveguide/] | Rods/Slabs/Sandwich/Waveguide/ |
| End-face Configuration [Materials：Nd:YAG / End-face Configuration；V:YAG：Flat/Convex/Wedge] | Flat/Convex/Wedge |
| End-face Configuration [Materials：V:YAG / End-face Configuration；Nd:YAG：Flat/Convex/Wedge] | Flat/Convex/Wedge |
| Side Configuration [Materials：Nd:YAG / Side Configuration；V:YAG：Polish/Fine Ground] | Polish/Fine Ground |
| Side Configuration [Materials：V:YAG / Side Configuration；Nd:YAG：Polish/Fine Ground] | Polish/Fine Ground |
| Coating available [Materials：Nd:YAG / Coating available；V:YAG：AR@1319nm+808nm / @1319nm+808nm] | AR@1319nm+808nm |
| Coating available [Materials：V:YAG / Coating available；Nd:YAG：AR@1319nm+808nm / @1319nm+808nm] | AR@1319nm+808nm |
| Coating available [Materials：Nd:YAG / Coating available；V:YAG：PR@1319nm&HR@808nm / @1319nm&AR@808nm] | HR@1319nm&AR@808nm |
| Coating available [Materials：V:YAG / Coating available；Nd:YAG：HR@1319nm&AR@808nm / @1319nm&HR@808nm] | PR@1319nm&HR@808nm |
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