The PP-IRFS-12.7-2.0-NPBS13 is a premium non-polarizing beam splitter optimized for 2940 nm Er laser systems that require precise beam manipulation while preserving the polarization state of the incident light. Manufactured on a 12.7 mm diameter IR-grade fused silica substrate with 2.0 mm thickness, this high-performance optic features advanced Ion Beam Sputtered (IBS) dielectric coatings that provide exceptional spectral stability, low optical losses, and excellent laser damage resistance. It is designed for operation at a 45° angle of incidence, making it an ideal solution for beam sampling, beam combining, and diagnostic applications in mid-infrared laser systems.

Unlike conventional beam splitters that can introduce polarization-dependent losses, the PP-IRFS-12.7-2.0-NPBS13 maintains nearly identical performance for both s- and p-polarized light, ensuring accurate beam division without disturbing the polarization ratio. The front surface coating delivers approximately 2% reflection at 2940 nm with minimal polarization dependence, while the rear surface features a high-efficiency anti-reflection coating to suppress unwanted back reflections and maximize transmission efficiency.

Combining excellent transmitted wavefront quality, high surface quality, and the durability of IBS coatings, this optic is well suited for OEM laser integration, medical Er laser systems, scientific instrumentation, interferometry, and precision optical measurement setups where stable polarization characteristics and long-term reliability are essential.