Broadband Beam Splitter

These cubes separate the s and p polarization components by reflecting the s component with the dielectric beamsplitter coating while allowing the p component to pass.

Broadband beam splitter.

Beamsplitters are common components in laser or illumination systems. Your one stop source for beamsplitters. A dielectric coating provides long term stability. Thorlabs polarizing beamsplitting cubes are offered in six sizes and with five beamsplitting coating ranges.

Even power split ratio insensitive to polarization broadband and chromatically neutral. The va cb series is based on zero order half waveplates and polarizing cube beam splitters. Incoming beams are both transmitted and reflected 45 with the s and p polarized components matched to within 10. Thorlabs 50 50 uv fused silica broadband beamsplitters which are available in ø1 2 ø1 25 mm x 36 mm and ø2 versions have a beamsplitter coating for the 250 450 nm range deposited on the front surface that has been optimized for a 45 angle of incidence.

Ideal for beam combining or separation the substrate is made of high quality n bk7 glass with the front surface optimized for terahertz wavelengths and the back side coated with a broadband antireflection coating optimized for visible wavelengths. Beamsplitters are also ideal for fluorescence applications optical interferometry or life science or semiconductor instrumentation. Light can be split by percentage of overall intensity wavelength or polarization state.