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Polarizing Beamsplitter Cube(PBS)

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, SF glass
Dimension Tolerance ±0.2mm
Extinction Ratio >100:1 for broadband, >500:1 for narrow band
Surface Quality 60/40 scratch and dig
Clear Aperture >90%
Beam Deviation <3 arc minutes
Flatness λ/4@632.8nm per 25mm
Principal Transmittance Narrow: Tp>95% and Ts<1%
Broad: Tp>90% and Ts<1%
Principal Reflectance Narrow: Rs>99% and Rp<5%
Broad: Rs>99% and Rp<10%
Coating Polarization beamsplitter coating on hypotenuse face
AR coating on all input and output faces
Damage Threshold >500mJ/cm2, 20ns, 20Hz, @1064nm




Standard Sizes

10*10*10mm
12.7*12.7*12.7*mm
15*15*15mm
20*20*20mm
25.4*25.4*25.4mm
Standard Wavelength: 450-650nm
600-900nm
900-1200nm




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