The 47-235 is a 15 x 15mm 50:50 (R:T) N-BK7 Broadband Non-Polarizing Cube Beamsplitter, designed for use in the telecom wavelength range of 1100-1620nm. This beamsplitter is sourced from Edmund Optics, a renowned vendor in the optical industry.
This beamsplitter is a cube-shaped optical element, with each side measuring 15mm. The beamsplitter's geometry is designed to split incoming light beams into two separate paths, with a 50:50 reflection-to-transmission ratio. This makes it an ideal component for applications that require equal distribution of light, such as interferometry, beam combining, or spatial filtering.
The 47-235 is made from N-BK7, a high-quality borosilicate glass manufactured by Schott. This material is known for its excellent optical properties, including high homogeneity, low autofluorescence, and excellent transmission in the visible and near-infrared regions. The beamsplitter's coating is another notable feature. Both the front and back surfaces are coated with an ideal broadband anti-reflective coating, which provides high transmission and low reflectivity across the entire spectral range.
The beamsplitter's hypotenuse surfaces are coated with EDM 47-013 and ideal broadband anti-reflective coating. This coating ensures optimal performance and durability, making the beamsplitter suitable for use in harsh environments.