Polarization Beamsplitter Cubes are an essential component in optical systems, designed to split a beam of light into two separate beams with distinct polarization states. 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 polarization states is crucial for applications requiring high degrees of polarization purity and efficiency.

Constructed from high-quality BK-7 grade A optical glass, these beamsplitter cubes are available in a range of dimensions from 3.2mm to 50.8mm, with tight dimensional tolerances of ±0.2mm. The angular tolerance is maintained at ±3 arc minutes, ensuring minimal deviation and high precision in beam alignment. The surface quality is rated at 60/40 scratch and dig, providing a smooth and clear optical path.

The polarization beamsplitter coating is applied to the hypotenuse of the cube, optimizing the separation of polarization states. Additionally, an anti-reflective (AR) coating is applied to each face, achieving reflectance levels of less than 0.25% per face. This ensures maximum transmittance and minimal loss, with principal transmittance values of Tp>95% and Ts<1%, and principal reflectance values of Rs>99% and Rp<5%. The wavelength range for these beamsplitters spans from 226nm to 2300nm, accommodating a wide variety of optical applications.

At Tower Optical Corporation, we understand that quality is not expensive, it is priceless. We offer next-day shipping for most wavelengths and provide discounts on volume orders of 10 pieces or more. If you have specific requirements, we are happy to provide custom solutions tailored to your needs.