Box-type beam splitter 18 available

The BSX18 is a 2-inch UVFS plate beam splitter with a 90:10 reflection-to-transmission ratio, designed for wavelengths around 633 nm and 1200–1600 nm.Key SpecificationsType: Thin plate beam splitter (Box-type refers to premounted cube-compatible form)Diameter: 2 inches (50.8 mm)Thickness: 8 mm, providing mechanical robustness and low optical aberration Material: UV Fused Silica (UVFS), known for excellent optical clarity and low absorption Coating: Front surface coating "tho 9010uvbs12001600" controls reflection and transmission; back surface typically AR-coated to minimize ghosting Reflection/Transmission Ratio: 90:10 (R:T), meaning 90% of incident light is reflected and 10% transmitted Operational Wavelengths: Primarily 633 nm for red light applications, with some models supporting 1200–1600 nm range Angle of Incidence: Designed for 45° AOI, standard for plate beam splitters Features and ApplicationsLow Profile: Thin design reduces beam displacement and optical aberrations, making it suitable for precision optical setups Compatibility: Can be mounted in optical cubes compatible with lens tube and cage systems, facilitating integration into complex optical assemblies Use Cases: Ideal for splitting or combining laser beams in interferometry, autocorrelators, laser systems, and other laboratory optics applications Performance: UVFS material and specialized coatings ensure minimal absorption, high transmission efficiency, and stable performance across the specified wavelength range Additional NotesBeam Splitter Types: The BSX18 is a plate-type splitter, which differs from cube or pellicle splitters in construction and optical behavior. Plate splitters are thin, flat glass plates with a coated front surface and AR-coated back surface, optimized for unpolarized light Availability: The BSX18 is in stock and can be purchased directly from Thorlabs or authorized distributors For more detailed technical information and ordering, the official Thorlabs product page can be consulted at https:// .