BK7-LNPBSC-10-780 10 x 10 x 10 mm N-BK7 Laser Line Non-Polarizing Cube Beamsplitter 780nm

This is the BK7-LNPBSC-10-780, a 10 x 10 x 10 mm N-BK7 Laser Line Non-Polarizing Cube Beamsplitter, specifically designed for a central wavelength of 780nm. This beamsplitter is sourced from Simtrum, a reputable vendor in the optical industry.

The beamsplitter is a cube-shaped optical element, with each side measuring 10mm, making it a compact and robust solution for various optical applications. It is made from N-BK7, a high-quality borosilicate glass known for its excellent optical properties, including a low coefficient of thermal expansion and high homogeneity. This material is identified by the catalog number "n-bk7 schott".

The beamsplitter features a broadband anti-reflection (AR) coating on all surfaces except the hypotenuse faces. The front, back, left, and right faces are coated with an ideal broadband AR coating, ensuring minimal reflection and maximum transmission across a wide spectral range. The hypotenuse faces, however, have specific coatings. Hypotenuse 1 is coated with a simulated non-polarizing beamsplitter coating (SIM NPBS 780 AOI 45), designed to split the incident light into reflected and transmitted components with equal efficiency at 780nm and a 45-degree angle of incidence. Hypotenuse 2 retains the ideal broadband AR coating.

The beamsplitter's physical data indicates a reflection of 0.5 (50%) and a transmission of 0.5 (50%) for the hypotenuse 1 face at the central wavelength of 780nm. This 50/50 splitting ratio makes it suitable for applications requiring balanced power distribution between the reflected and transmitted beams.