The OPTOMAN PP-UVFS-25.4-6.35-LLM391 is a precision-engineered high-reflectivity laser mirror designed for demanding laser applications operating at 1900 nm. Fabricated on a premium UV fused silica substrate and enhanced with a durable Ion Beam Sputtered (IBS) dielectric coating, this optic delivers greater than 99.5% reflectivity at normal incidence (0° AOI) while maintaining exceptionally low optical losses and outstanding long-term stability. The dense IBS coating provides excellent resistance to humidity, temperature fluctuations, and mechanical wear, making the mirror suitable for both laboratory research and industrial laser environments.Manufactured to tight optical tolerances, the mirror features a 25.4 mm diameter, 6.35 mm thickness, λ/10 surface flatness, and a high-quality 10-5 scratch-dig surface finish, ensuring minimal wavefront distortion and low scatter. These characteristics make it an ideal choice for precision optical systems where beam quality and alignment stability are critical.The PP-UVFS-25.4-6.35-LLM391 is well suited for integration into thulium fiber lasers, solid-state laser systems, optical resonators, beam delivery assemblies, spectroscopy instruments, and advanced photonics equipment. Its combination of high reflectivity, excellent thermal performance, and robust coating durability makes it a reliable solution for OEM manufacturers, research laboratories, medical laser developers, and industrial laser integrators seeking consistent optical performance under demanding operating conditions. Designed to deliver long service life and dependable performance, this mirror is an excellent component for next-generation near-infrared laser systems operating around the 1900 nm wavelength.