Beamsplitter Cubes

Our high-precision beamsplitter cube is a premium optical component engineered for critical applications including spacecraft development, high-precision optical measurement, and advanced optical systems. It delivers outstanding structural stability, ultra-high angular accuracy, and consistent optical performance to meet the most demanding industrial and aerospace standards.

As a precision regular hexahedron, this cube beam splitter features an extremely low angular error of just 2 to 5 seconds between adjacent faces. Three to five adjacent faces are coated with high-performance reflective films and engraved with clear cross-marks—design advantages that make it a superior cubic reference prism for high-accuracy spatial positioning and coordinate system construction.

In spacecraft development, this high-precision cubic reference prism provides exceptional practical value. By measuring the normal vector of its reflective surfaces with an electronic theodolite, users can directly establish a stable cube mirror coordinate system to precisely define the spatial position of spacecraft components. This streamlined positioning solution ensures ultra-high accuracy and fully satisfies the strict quality and performance requirements of aerospace-grade applications.

As a multifunctional optical beam splitter, the cube beam splitter performs two core operations: splitting incident light into two separate beams at a predefined ratio, and combining two distinct light beams into one output beam. Beam splitters are typically categorized into cube beam splitters and plate beam splitters, with our cube design offering superior structural rigidity, better beam uniformity, and higher dimensional stability for precision-demanding setups.

Our standard beamsplitter cube is optimized for non-polarized light sources such as natural light and polychromatic light. Ideal for systems where polarization state is non-critical, it splits non-polarized light at a fixed reflection/transmission (R/T) ratio with no intentional polarization tendency, ensuring stable, repeatable, and uniform light-splitting performance.

For polarization-sensitive applications, our non-polarizing beamsplitter cube is the ideal solution. It splits incident light at a precise R/T ratio while perfectly preserving the original polarization state of input light, eliminating polarization distortion and maintaining optical signal integrity. For instance, a 50/50 non-polarizing beamsplitter accurately distributes transmitted P-polarization, reflected P-polarization, and S-polarization components according to design specifications. This makes it widely used in high-precision optical experiments, laser imaging systems, interferometry, and other polarization-critical optical setups.