Cr,Tm,Ho:YAG Laser Crystal is an advanced laser material known for its high efficiency and versatility, primarily used in generating laser emissions at a wavelength of 2.1 µm. This crystal is effectively pumped by either a Xenon lamp or diode, with the pump source mainly deriving from the flashlamp energy absorbed by chromium (Cr3+), while holmium (Ho3+) serves as the working ion. Thulium (Tm3+) plays a crucial intermediary role in transferring energy, ensuring efficient operation of the laser system.

The 2.1 µm laser wavelength produced by the Cr,Tm,Ho:YAG crystal is particularly notable for its ability to be absorbed by water, which makes it highly effective for various applications. Additionally, it transmits through the atmosphere with ease and is considered safe for the eyes. These properties make the crystal an excellent choice for medical treatments, laser radar systems, and military applications. Furthermore, the 2.1 µm laser serves as an ideal pump source for mid-infrared optical parametric oscillators operating in the 3-5 µm range.

This laser crystal boasts a wide absorption band and high slope efficiency, making it suitable for both flash lamp and diode pumping methods. The material's physical and chemical properties, such as its cubic structure, high melting point, and robust thermal conductivity, contribute to its reliability and effectiveness in demanding environments. The Cr,Tm,Ho:YAG crystal is available in various sizes and specifications, ensuring versatility and adaptability to meet specific operational requirements.