Lithium Triborate (LBO) Crystals are renowned for their exceptional optical properties, making them a preferred choice in various high-power laser applications. These crystals are characterized by their high damage threshold, which ensures durability and reliability even under intense laser exposure. This makes them particularly suitable for environments where high power and precision are paramount.

The broad transparency range of LBO crystals, spanning from 169 nm to 2600 nm, allows for versatile applications across different wavelengths. This wide range, combined with their excellent thermal stability, ensures that LBO crystals maintain their performance under varying temperature conditions. The rhombic crystal structure further enhances their optical efficiency, contributing to their widespread use in both civilian and military laser systems.

In terms of phase matching, LBO crystals offer flexibility with Type I and Type II non-critical phase matching capabilities. For Type I phase matching, the crystals are effective within a wavelength range of 1000-1300 nm when temperature-controlled. Meanwhile, Type II phase matching is optimal within 800-1100 nm at room temperature. This adaptability makes LBO crystals a versatile component in optical parametric amplifiers (OPA) and oscillators (OPO), as well as in second and third harmonic generation (SHG/THG) of high-power Nd:YAG lasers.