| Overview: Polarizing Beamsplitter Cubes are formed from two right angle, 45° prisms permanently cemented together. The hypotenuse is coated with an all dielectric, polarization sensitive coating designed to separate an incident, unpolarized, monochromatic beam into its S and P polarization components.All entrance and exit surfaces are coated with a high efficiency, narrowband, anti-reflection coating. The extinction ratio (Tp/Ts) exceeds 1000:1 in the transmitted beam. The two orthogonally polarized beams emerge from the cube at 90° with respect to each other. General Specification of Polarizing Beamsplitter Cube: | Material | N-BK7, SF Glass | | Dimension Tolerance | ±0.2mm | | Surface Quality | 60/40 scratch and dig | | Clear Aperture | >90% | | Transmitted Wavefront Distortion | <λ/4@632.8nm per 10mm | | Beam Deviation | <3 arc minutes | | Extinction Ratio | Tp/Ts>1000:1(narrow band) Tp/Ts>100:1/>1000:1(broad band) | | Principal Transmittance | Narrow: Tp>95%, Ts<1%
Broad: Tp>90% , 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 Products of Polarizing Beamsplitter Cube: | Part Number | Material | Dimension (mm) | Thickness (mm) | Tp/Ts | Wavelength (nm) | | PBS1010-397 | N-BK7 | 10x10 | 10 | 1000:1 | 397 | | PBS1212-397 | N-BK7 | 12.7x12.7 | 12.7 | 1000:1 | 397 | | PBS2020-397 | N-BK7 | 20x20 | 20 | 1000:1 | 397 | | PBS2525-397 | N-BK7 | 25.4x25.4 | 25.4 | 1000:1 | 397 | | PBS1010-400-700 | N-SF1 | 10x10 | 10 | 1000:1 | 400-700 | | PBS1212-400-700 | N-SF1 | 12.7x12.7 | 12.7 | 1000:1 | 400-700 | | PBS2020-400-700 | N-SF1 | 20x20 | 20 | 1000:1 | 400-700 | | PBS2525-400-700 | N-SF1 | 25.4x25.4 | 25.4 | 1000:1 | 400-700 | | PBS1010-532 | N-BK7 | 10x10 | 10 | 1000:1 | 532 | | PBS1212-532 | N-BK7 | 12.7x12.7 | 12.7 | 1000:1 | 532 | | PBS2020-532 | N-BK7 | 20x20 | 20 | 1000:1 | 532 | | PBS2525-532 | N-BK7 | 25.4x25.4 | 25.4 | 1000:1 | 532 | | PBS1010-600-1000 | N-SF1 | 10x10 | 10 | 1000:1 | 600-1000 | | PBS1212-600-1000 | N-SF1 | 12.7x12.7 | 12.7 | 1000:1 | 600-1000 | | PBS2020-600-1000 | N-SF1 | 20x20 | 20 | 1000:1 | 600-1000 | | PBS2525-600-1000 | N-SF1 | 25.4x25.4 | 25.4 | 1000:1 | 600-1000 | | PBS1010-780 | N-BK7 | 10x10 | 10 | 1000:1 | 780 | | PBS1212-780 | N-BK7 | 12.7x12.7 | 12.7 | 1000:1 | 780 | | PBS2020-780 | N-BK7 | 20x20 | 20 | 1000:1 | 780 | | PBS2525-780 | N-BK7 | 25.4x25.4 | 25.4 | 1000:1 | 780 | | PBS1010-894 | N-BK7 | 10x10 | 10 | 1000:1 | 894 | | PBS1212-894 | N-BK7 | 12.7x12.7 | 12.7 | 1000:1 | 894 | | PBS2020-894 | N-BK7 | 20x20 | 20 | 1000:1 | 894 | | PBS2525-894 | N-BK7 | 25.4x25.4 | 25.4 | 1000:1 | 894 | | PBS1010-900-1300 | N-SF1 | 10x10 | 10 | 1000:1 | 900-1300 | | PBS1212-900-1300 | N-SF1 | 12.7x12.7 | 12.7 | 1000:1 | 900-1300 | | PBS2020-900-1300 | N-SF1 | 20x20 | 20 | 1000:1 | 900-1300 | | PBS2525-900-1300 | N-SF1 | 25.4x25.4 | 25.4 | 1000:1 | 900-1300 | | PBS1010-1064 | N-BK7 | 10x10 | 10 | 1000:1 | 1064 | | PBS1212-1064 | N-BK7 | 12.7x12.7 | 12.7 | 1000:1 | 1064 | | PBS2020-1064 | N-BK7 | 20x20 | 20 | 1000:1 | 1064 | | PBS2525-1064 | N-BK7 | 25.4x25.4 | 25.4 | 1000:1 | 1064 | | PBS1010-1200-1600 | N-SF1 | 10x10 | 10 | 1000:1 | 1200-1600 | | PBS1212-1200-1600 | N-SF1 | 12.7x12.7 | 12.7 | 1000:1 | 1200-1600 | | PBS2020-1200-1600 | N-SF1 | 20x20 | 20 | 1000:1 | 1200-1600 | | PBS2525-1200-1600 | N-SF1 | 25.4x25.4 | 25.4 | 1000:1 | 1200-1600 | Coating Graphs of Polarizing Beamsplitter Cube: | 397nm Polarizing Beamsplitter Cube 
| 400-700nm Polarizing Beamsplitter Cube 
| | 532nm Polarizing Beamsplitter Cube 
| 600-1000nm Polarizing Beamsplitter Cube 
| | 780nm Polarizing Beamsplitter Cube 
| 894nm Polarizing Beamsplitter Cube 
| | 900-1300nm Polarizing Beamsplitter Cube 
| 1064nm Polarizing Beamsplitter Cube 
| | 1200-1600nm Polarizing Beamsplitter Cube 
| | Mount Options of Polarizing Cube Beamsplitter: Star Optic also offers a variety of mounting solutions for our Polarizing Beamsplitter Cubes. Please refer to Optomechanical Mounts for information on mounting options and compatibility. If you are not sure which to select, please contact us, we will work with you to identify the best solution for your needs. | 
