3G Optics

Polarization Beamsplitter Cube (PBC)

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.

Narrow Brand Wavelength: (nm)

488 514.5 532 632.8 635 670 780 850 980 1064 1300 1550

Broadband Wavelength: (nm)

450-650 650-900 900-1200 1200-1560

Specifications

Material Bk7, fine annealed (other material upon request)
Dimensions Tolerance 0.0/-0.15 mm
Surface Flatness λ/4 @ 632.8 nm
Surface Quality 20-10 scratch & dig
Extinction Ratio >300:1
Beam Deviation < 3'
Clear Aperture >90%
Principal Reflectance Rs>99% and Rp<5%
Principal Transmittance Rp>95% and Ts<1%
Coating Polarization beamsplitter coating on hypotenuse face, pAR-coatings (R<0.25%) on all input and output face.

 

Note: Special material and size and specifications are available upon request.