LBTEK mounts 25.4 mm Laser Line Polarizing Beamsplitter Cubes within a cube housing compatible with 30 mm cage systems. The engraved lines on the top of the housing indicate the optical path direction. This housing features M3 tapped holes on its sides for seamless integration with 30 mm cage systems. Additionally, it provides four SM1-threaded internal ports, allowing for simultaneous compatibility with 25.4 mm lens tubes. The bottom of the cage cube also includes an M4 tapped hole for mounting onto post assemblies.

LBTEK Laser-Line Polarizing Beamsplitter Cube (Common Wavelengths for Quantum Technologies) consists of two UV Fused Silica (UVFS) Right-Angle Prisms, one of which has a dielectric Polarizing Beamsplitter Coating on its hypotenuse. The dielectric Beamsplitter Coating transmits P-polarized light and reflects S-polarized light (Tp > 95%, Rs > 99.5%), and the transmission Extinction Ratio (ER) can reach Tp:Ts > 3000:1. This product series covers multiple wavelengths commonly used in Quantum Technologies, including 399 nm, 509 nm, 556 nm, 671 nm, 780 nm, 795 nm, 813 nm, and 1013 nm, and can meet the experimental requirements of mainstream systems in Quantum Technologies. All four sides of the cube can be used as entrance surfaces. To achieve optimal polarization performance, it is recommended that incident light enter through the right-angle face of the prism coated with the Polarizing Beamsplitter Coating.

LBTEK Laser-Line Polarizing Beamsplitter Cube (Unmounted Version) is constructed by cementing two UV Fused Silica (UVFS) Right-Angle Prisms. The hypotenuse of one Right-Angle Prism is coated with a dielectric polarizing Beamsplitter Coating, enabling high transmission of P-polarized light and high reflection of S-polarized light (Tp>95%, Rs>99.5%), with an Extinction Ratio (ER) in the transmission direction of Tp:Ts>3000:1. This series covers multiple Design Wavelengths within the 405 nm–1550 nm range and is available in two side length specifications, L=12.7 mm and 25.4 mm, and can be mounted in a same-size coaxial beamsplitter cube mount. For ease of identification and operation, the top of the unmounted version is engraved with a direction arrow and the Item; the side of the Prism with a black dot indicates that its hypotenuse has been coated with the dielectric polarizing Beamsplitter Coating. To achieve optimal polarization performance, it is recommended to use it following the direction of the arrow.