Non-polarizing Cube Beamsplitter

Non-Polarizing Cube Beamsplitters consists of a pair of precision high tolerance right angle prisms cemented together with a metallic-dielectric coating on the hypotenuse of one of the prisms. The low..

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Non-polarizing Cube Beamsplitter

Non-Polarizing Cube Beamsplitters consists of a pair of precision high tolerance right angle prisms cemented together with a metallic-dielectric coating on the hypotenuse of one of the prisms. The low polarization dependence of the metallic-dielectric coating allows the transmission and reflection for S- and P- polarization states to be within 6% of each other. This means that they will not change the state of polarization of the incident beam.

     UPT offers both broadband and single wavelength non-polarizing cube beamsplitters (NPBS). An antireflective coating has been applied to each face of the beamsplitter in order to produce maximum transmission efficiency for the appropriate wavelength range.
 
Broadband NPBS 

Specification:
Material: ---------------------------------------------------N-BK7 grade A, optical glass
Dimension Tolerance: --------------------------------±0.1mm 
Flatness: -------------------------------------------------- l/4 @ 632.8 nm per 25mm 
Surface Quality: -----------------------------------------60/40 scratches and dig
Beam Deviation: ----------------------------------------<3arc minutes
Clear Aperture: ----------------------------------------90%
Bevel: ------------------------------------------------------0.3 mm X 45 deg
Coating :Hypotenuse Face---------------------------NPBS Coating
Splitting Ratio :--------------------------------------------Tp/Rp=Ts/Rs= 45%±5%
Absorption: -----------------------------------------------<10%
Polarization: ---------------------------------------------6%
AR Coating: @450-680nm R<0.5%, @720-1080nm R<0.5%, @1100-1620nm R<0.5%
 Note: Other sizes, split ratio and coating are available upon request.