Polarization Beamsplitter Cubes are an essential component in optical systems, designed to split a beam of light into two separate polarized beams. These beamsplitters utilize two complementary prisms to achieve this effect, ensuring that the output beam parallel to the input is p-polarized, while the orthogonal output beam is s-polarized. This precise separation of light is crucial for various optical applications, providing high efficiency and reliability.

Crafted from BK-7 grade A optical glass, these beamsplitters offer exceptional clarity and durability. The material choice ensures minimal distortion and high-quality performance across a wide range of dimensions, from 3.2mm to 50.8mm. The dimensional and angular tolerances are meticulously controlled, with a dimensional tolerance of ±0.2mm and an angular tolerance of ±3 arc minutes, ensuring precision in every piece.

The surface quality of these beamsplitters is maintained at a high standard, with a scratch and dig specification of 60/40. This attention to detail minimizes imperfections, enhancing the overall performance of the beamsplitter. The beam deviation is kept to a minimal 3 arc minutes, and the extinction ratio exceeds 100:1, providing superior separation of polarized light.

With a principal transmittance of Tp>95% and Ts<1%, and a principal reflectance of Rs>99% and Rp<5%, these beamsplitters are optimized for efficiency. The wavelength range spans from 226nm to 2300nm, making them versatile for various optical systems. The polarization beamsplitter coating is applied on the hypotenuse, and an anti-reflective coating ensures R<0.25% per face for all four faces, further enhancing performance.

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