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Beamsplitting Thompson Prisms

Beamsplitting Thompson Prisms

  • Made from the highest quality natural calcite
  • Provides a full 45 degree split between the two polarizations

  • Mounted in a metal cell for convenience and protection

  • Available in three sizes: 8mm, 10mm and 12mm square


These are Glan Thompson prisms which are extended to have an output face polished normal to the exiting o-ray. By this means it is possible to obtain a 45 degree split between the two orthogonal polarizations.

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Prism Side (mm)Cell Diameter (mm)Cell Length (mm)Surface QualityAngular Separation (deg)Asymmetry (deg)MaterialDimensions toleranceWavelength RangeExtinction ratioCell materialMaximum Power Level CWMaximum Power Level Pulsed
8.025.0030.040 - 20451Optical Quality Natural Calcite±0.2mm350-22001 x 10-5Black anodized aluminum1W/cm25W/cm2
10.031.7535.040 - 20451Optical Quality Natural Calcite±0.2mm350-22001 x 10-5Black anodized aluminum1W/cm25W/cm2
12.038.0041.040 - 20451Optical Quality Natural Calcite±0.2mm350-22001 x 10-5Black anodized aluminum1W/cm25W/cm2

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