Laser crystals, glasses, and ceramics are used as optical gain sources in solid-state lasers. These media are typically doped with rare-earth ions (e.g. neodymium, ytterbium, or erbium) or transition metal ions (titanium or chromium). Changchun Yutai Optics Co., Ltd.develops and supplies different laser crystal hosts and ion dopant combinations for fundamental, applied research and industrial applications.