# AOG CRYSTAL — full product & resource list > AOG CRYSTAL Technology Co., Ltd. (Xiamen, China) manufactures solid-state laser crystals, nonlinear optical crystals, passive Q-switches, diffusion-bonded composite crystals, magneto-optical and acousto-optic crystals, Raman crystals and infrared optical materials. Custom doping, dimensions, orientation and coatings; AR/HR/PR coatings to specified wavelengths. Contact: sales@aogcrystal.com. ## Laser crystals - [Nd:YAG Crystal](https://aogcrystal.com/products/nd-yag-crystal.html) — neodymium-doped YAG, 1064 nm, the standard solid-state gain medium - [Nd:YVO4 Crystal](https://aogcrystal.com/products/nd-yvo4-crystal.html) — high absorption/gain at 1064 nm, DPSS and green lasers - [Nd:YLF Crystal](https://aogcrystal.com/products/nd-ylf-crystal.html) — neodymium-doped lithium yttrium fluoride, 1047/1053 nm - [Nd:Ce:YAG Crystal](https://aogcrystal.com/products/nd-ce-yag-crystal.html) — Ce co-doping for enhanced UV pump absorption - [Yb:YAG Crystal](https://aogcrystal.com/products/yb-yag-crystal.html) — ytterbium-doped YAG, 1030 nm, high-power & thin-disk lasers - [Er:YAG Crystal](https://aogcrystal.com/products/er-yag-crystal.html) — erbium YAG, 2940 nm, dental & aesthetic lasers - [Tm:YAG Crystal](https://aogcrystal.com/products/tm-yag-crystal.html) — thulium YAG, ~2 µm - [Ho:YAG Crystal](https://aogcrystal.com/products/ho-yag-crystal.html) — holmium YAG, 2.1 µm, medical/surgical lasers - [Tm:YLF Crystal](https://aogcrystal.com/products/tm-ylf-crystal.html) — thulium-doped YLF - [Ho:YLF Crystal](https://aogcrystal.com/products/ho-ylf-crystal.html) — holmium-doped YLF, long upper-state lifetime - [Pr:YLF Crystal](https://aogcrystal.com/products/pr-ylf-crystal.html) — praseodymium YLF, visible laser lines - [Ti:Sapphire Crystal](https://aogcrystal.com/products/ti-sapphire-crystal.html) — tunable 650–1100 nm, ultrafast amplifiers - [Cr:GSGG Crystal](https://aogcrystal.com/products/cr-gsgg-crystal.html) ## Nonlinear crystals - [BBO Crystal](https://aogcrystal.com/products/bbo-crystal.html) — beta barium borate, UV generation & OPO - [LBO Crystal](https://aogcrystal.com/products/lbo-crystal.html) — lithium triborate, high-power SHG/THG - [CLBO Crystal](https://aogcrystal.com/products/clbo-crystal.html) — cesium lithium borate, deep-UV 266 nm - [KTP Crystal](https://aogcrystal.com/products/ktp-crystal.html) — efficient green (532 nm) generation - [KTA Crystal](https://aogcrystal.com/products/kta-crystal.html) — potassium titanyl arsenate, mid-IR OPO - [KDP / DKDP Crystal](https://aogcrystal.com/products/kdp-dkdp-crystal.html) — high-energy harmonic generation - [LiNbO3 & MgO:LiNbO3 Crystal](https://aogcrystal.com/products/linbo3-mgo-ln-crystal.html) — Q-switching and PPLN ## Passive Q-switched crystals (saturable absorbers) - [Cr4+:YAG Crystal](https://aogcrystal.com/products/cr4-yag-crystal.html) — for 1 µm Nd lasers - [Co:Spinel Crystal](https://aogcrystal.com/products/co-spinel.html) — for eye-safe 1.5 µm Er lasers - [V:YAG Crystal](https://aogcrystal.com/products/v-yag-crystal.html) — for 1.3 µm - [Cr:GSGG Crystal](https://aogcrystal.com/products/cr-gsgg-crystal.html) ## Diffusion bonding (composite) crystals - [Nd:YAG + V:YAG Bonding Crystal](https://aogcrystal.com/products/nd-yag-v-yag-bonding-crystal.html) - [YAG + Nd:YAG + Cr4+:YAG + YAG Bonding Crystal](https://aogcrystal.com/products/yag-nd-yag-cr4-yag-yag-bonding-crystal.html) - [YAG + Cr4+:YAG + Nd:Ce:YAG + YAG Bonding Crystal](https://aogcrystal.com/products/yag-cr4-yag-nd-ce-yag-yag-bonding-crystal.html) - [YAG + Nd:YAG + YAG Bonding Crystal](https://aogcrystal.com/products/yag-nd-yag-yag-bonding-crystal.html) - [YVO4 + Nd:YVO4 Bonding Crystal](https://aogcrystal.com/products/yvo4-nd-yvo4-bonding-crystal.html) - [YAG + Er:YAG + YAG Bonding Crystal](https://aogcrystal.com/products/yag-er-yag-yag-bonding-crystal.html) ## Other crystal types - [TGG Crystal](https://aogcrystal.com/products/tgg-crystal.html) — magneto-optical, Faraday isolators - [TeO2 Crystal](https://aogcrystal.com/products/teo2-crystal.html) — acousto-optic Q-switch / modulator - [KGW Crystal](https://aogcrystal.com/products/kgw-crystal.html) — Raman crystal - [KYW Crystal](https://aogcrystal.com/products/kyw-crystal.html) — Raman crystal - [Barium Nitrate Crystal](https://aogcrystal.com/products/barium-nitrate-crystal.html) — Raman shifter ## Infrared optical materials - [ZnSe Crystal](https://aogcrystal.com/products/znse-crystal.html) — CO2 laser lenses/windows - [ZnS (Zinc Sulfide) Crystal](https://aogcrystal.com/products/zns-crystal.html) — multispectral IR windows - [CaF2 Crystal](https://aogcrystal.com/products/caf2-crystal.html) — calcium fluoride - [Silicon (Si) Crystal](https://aogcrystal.com/products/silicon-crystal.html) — IR windows - [Germanium (Ge) Crystal](https://aogcrystal.com/products/germanium-crystal.html) — thermal imaging optics ## Free engineering tools - [Absorption Coefficient Calculator](https://aogcrystal.com/absorption-coefficient-calculator-tools.html) - [Phase Matching for SHG](https://aogcrystal.com/phase-matching-for-shg.html) ## Knowledge hubs - [Knowledges of Crystals](https://aogcrystal.com/knowledges-of-crystals.html) - [Crystal Applications](https://aogcrystal.com/crystals-applications.html) - [Theory of Optical](https://aogcrystal.com/theory-of-optical.html) ## Company - [About](https://aogcrystal.com/about.html) | [Services](https://aogcrystal.com/services.html) | [Contact / Quote](https://aogcrystal.com/contact.html)