Polarizing film is coated on the internal face of a cube beamsplitter. Thin film polarizers utilize the polarization wich occurs on reflection deviated by 90° angle. Cube polarizing beamsplitters can be optimized for a particular wavelength to give superior performance for laser applications.


Basic Parameters

MaterialBK7, UV FS
Surface quality40-20 scratch & dig (MIL-PRF-13830B)
Surface flatnessλ/4 @ 633nm
Clear aperture90% of the face size
Beam deviation<3 arcmin
Dimension tolerance±0.3mm
Laser  Damage  Threshold0.3J/cm2  10ns pulses at 1064nm


  • Durable and convenient
  • Optimized for popular laser wavelengths
Cube Polarizing Beam Splitters Spectrogram
Cube Polarizing Beam Splitters Spectrogram

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