Polarization Cube Beamsplitters


Polarizing Cube Beamsplitters split randomly polarized beams into two orthogonal,linearly,polarized components-S-polarized light is reflected at a 90deg.Angle while P-polarized light is transmitted.Each beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a dielectric coating on the hypotenuse of one of prisms.

Material BK7
Dimension Tolerance +/-0.2mm
Beam Deviation 3 arc min.
Surface Quality 60-40 scratch and dig
Extinction Ratio >100:1 for broadband
>500:1 for narrow band
Surface Accuracy λ/4 @ 632.8 nm per 25mm
Principal Transmittance Tp>95% and Ts<1%
Principal Reflectance Rs>99% and Rp<5%
Bevel 0.1mmX45 degree

Polarization beamsplitter coating on hypotenuse face
AR-coating on all input and output faces



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