Non Polarizing Beam Splitter Cube

Absorption loss to the coating is 10 but due to the metallic material of the coating cubes do not change polarization of the incident beam.

Non polarizing beam splitter cube.

Non polarizing cube beamsplitters are formed from two right angle 45 prisms permanently cemented together. Negligible absorption for true 50 50 beamsplitting. The low polarization dependence of the metallic dielectric hybrid coating allows the transmission and reflection of s and p polarization states to be within 6 of each other. Incoming beams are both transmitted and reflected 45 with the s and p polarized components matched to within 10.

Each cube is fabricated from n bk7 and designed for minimal beam offset. Thorlabs non polarizing beamsplitter cubes are offered here with broadband ar and beamsplitter coatings designed for 400 700 nm. Even power split ratio insensitive to polarization. Broadband non polarizing beamsplitters with metal hybrid dielectric coatings.

Non polarizing cube beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a metallic dielectric coating on the hypotenuse of one of the prisms. Beamsplitter cubes are available with split ratios of 30 70 50 50 or 70 30 and in sizes of 5 mm 10 mm 20 mm and 25 4 mm. No phase shift between s p pol. These cubes provide a 10 90 30 70 50 50 70 30 or 90 10 beamsplitting ratio with a minimal dependence on the polarization of the incident light see the tables below for the polarization split ratio tolerances.

Thorlabs offers non polarizing cube beamsplitters for visible 400 700 nm nir 700 1100 nm and ir 1100 1600 nm light. All varieties of beam splitters are available in a wide selection of sizes and glass types with tight surface quality angles dimensions flatness and transmitted wavefront requirements. Custom facets chamfers notches and other features are also available. Our broadband non polarizing hybrid cube beamsplitters are ideal for use with multiple lasers or tunable sources.

Cubes are constructed by cementing two precision right angle prisms together with metallic dielectric coating on the hypotenuse surface. Laser line non polarizing cube beamsplitters. Even power split ratio insensitive to polarization. The hypotenuse is coated with an all dielectric non polarizing partial reflection coating.

Broadband and chromatically neutral.