Overview: Standard polarizing beamsplitter cube does not have high advantate
on the extinction ratio of reflected channel .
This Two Channel Polarizing Beamsplitter Cube with our
unique coating technique can achieve high performance not
only at transmitted but also at reflected channels. It features
greater than 97% transmission of p-polarized beam as well as high
extinction ration of greater than 1000:1 at transmitted channel and
200:1 at reflected channel. It is widely used in interferometer
applications. General Specification of Two Channel Polarizing Beamsplitter Cube: | Material | N-BK7 | | Dimension Tolerance | ±0.2mm | | Surface Quality | 40/20 scratch and dig | | Clear Aperture | >90% | Transmitted Wavefront Distortion | <λ/8@632.8nm per 10mm | | Reflected Wavefront Distortion | <λ/8@632.8nm per 10mm | | Beam Deviation | <3 arc minutes | | Extinction Ratio | Tp/Ts>1000:1 Rs/Rp>200:1 | | Principal Transmittance | Tp>97% | | Principal Reflectance | Rs>99.9% | | 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 Two Channel Polarizing Beamsplitter Cube: | Part Number | Material | Dimension (mm) | Thickness (mm) | Tp/Ts | Rs/Rp | Wavelength (nm) | | PBST1212-532 | N-BK7 | 12.7x12.7 | 12.7 | >1000:1 | >200:1 | 532 | | PBST2525-532 | N-BK7 | 25.4x25.4 | 25.4 | >1000:1 | >200:1 | 532 | | PBST1212-633 | N-BK7 | 12.7x12.7 | 12.7 | >1000:1 | >200:1 | 633 | | PBST2020-633 | N-BK7 | 25.4x25.4 | 25.4 | >1000:1 | >200:1 | 633 | | PBST1212-780 | N-BK7 | 12.7*12.7 | 12.7 | >1000:1 | >200:1 | 780 | | PBST2020-780 | N-BK7 | 25.4x25.4 | 25.4 | >1000:1 | >200:1 | 780 | | PBST1212-1064 | N-BK7 | 12.7*12.7 | 12.7 | >1000:1 | >200:1 | 1064 | | PBST2020-1064 | N-BK7 | 25.4x25.4 | 25.4 | >1000:1 | >200:1 | 1064 |
Coating Curves of Two Channel Polarizing Beamsplitter Cube: 532nm Two-Channel High Performance Polarizing Beamsplitting Cube | 633nm Two-Channel High Performance Polarizing Beamsplitting Cube | 780nm Two-Channel High Performance Polarizing Beamsplitting Cube | 1064nm Two-Channel High Performance Polarizing Beamsplitting Cube |
Mount Options of High Power Polarization Cube Beamsplitter: Star Optic also offers a variety of mounting solutions for our Two
Channel 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. | 
