A high-power splitting prism is a cube made of a pair of high-precision right angle prisms fused with ultraviolet quartz, which are coated with special optical films on the inclined surface and glued together. It can split the incident random beam into two beams of linearly polarized light that are perpendicular to each other. P-polarized light passes through all the incident direction, and S-polarized light reflects all the perpendicular incident direction. The TP: TS depolarization ratio can be customized according to requirements, such as greater than 1000:12000:15000:1. At the same time, the bonding of the two high-precision prisms uses optical special optical glue technology, which greatly meets the requirements of laser, cutting and other fields. It is resistant to ultra-high temperatures and strong lasers, and is the most significant feature of high-power polarizing prisms. It is generally used for laser wavelengths of 266, 355, 450, 532, 633, 760, 780, 808. 905, 1064, 1550nm, etc., with an anti laser threshold of up to 15J/cm ² @ 1064nm, 20ns, 20Hz.