LBTEK polarizing plate beamsplitters are designed to separate the polarization components of incident light, transmitting p-polarized light while reflecting s-polarized light. Manufactured from UV-grade fused silica, each beamsplitter features a narrowband polarizing coating on both optical surfaces and is available at nine standard wavelengths: 405 nm, 532 nm, 780 nm, 808 nm, 1030 nm, 1064 nm, 1310 nm, and 1550 nm. At a 45° angle of incidence, these beamsplitters achieve an extinction ratio of Tp:Ts > 10,000:1. LBTEK offers two standard formats: Ø25.4 mm circular version (5.0 mm thick): Includes a side indicator arrow pointing toward the incident surface. The exit face incorporates a 30 arcmin wedge to suppress back reflections and ghosting； 25 mm × 36 mm rectangular version (1.0 mm thick): Designed without a wedge, making it well-suited for compact optical layouts. Both faces can be used for incidence. With superior polarization performance and flexible design options, LBTEK beamsplitters are ideal for applications requiring high extinction ratios and precise polarization control. Customization are also available, including alternative materials, wavelengths, sizes, and thicknesses. For customization, please contact LBTEK Technical Support.