location:Products >> Polarization Optics >> Beamsplitters

Non Polarizing Beamsplitter Cubes

issue date:2016-3-31 15:35:44 visit frequency:1362

Non Polarizing Beamsplitter Cubes

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.


We offer both broadband and single wavelength non-polarization beamsplitter cubes(NPSB). An anti-reflective coating has been applied to each face of the beamsplitter in order to produce maximum transmission efficiency for the appropriate wavelength range.


N-BK7 grade A

Dimension Tolerance



λ/8 @ 632.8 nm

Surface Quality

40/20 scratches and dig

Beam Deviation

<3arc minutes

Clear Aperature



<0.3 mm X 45 deg


Hypotenuse face:NPBS Coating

All input and output faces:AR Coating


|Ts-Tp|≤6%, |Rs-Rp|≤6%

Splitting Ratio

Tp/Rp=Ts/Rs= 45%±5%



AR Coating

Ravg<0.5 @450-680nm,Ravg<0.5 @700-1000nm,

Ravg<0.5 @1300-1600nm,

Standard wavelength