This is a conventional beamsplitter independent of polarization. The incoming light should be one of the following: 45 linearly polarized, circularly polarized or natural light, i.e. the s-polarized and p-polarized components should be equal to within 5% of each other. The outgoing beams are two partially polarized beams of about equal intensities. It is advised not to use in polarization optical system. •Material: BK7 fine annealed optical glass •Diameter Tolerance: ±0.15mm •Flatness: λ/4 at 632.8nm •Surface Quality: 60-40 scratch-dig •Clear Aperture: >90% dimension •R/T ratio: 50/50±3% T-(Ts + Tp)/2, R= (Rs +Rp)/2 •Beam Deviation: 0º±3’ (T), 90º±5’(R) •Incidence angel: 0º±3’ •Coating: Single wavelength partial reflectance on hypotenuse face. AR V-coating on all input and output surface, R<0.15%