A Wollaston prism splits the incident beam into two rays: the ordinary ray and the extraordinary ray. The deviation angle depends on the wavelength and the cutting angle, and both rays pass through the opposite surface.

A Wollaston polarizer is made by bonding two prisms of birefringent material together with special optical cement. The deviations of the ordinary ray and extraordinary ray from the input beam axis are nearly symmetrical, so the deviation of a Wollaston polarizing beam splitter is approximately twice that of a Rochon polarizer. The separation angle exhibits dispersion, as shown in the figure. Any separation angle can be designed upon request.

Features:

• Cemented or Optically Contacted
• Splits ordinary and extraordinary rays at a defined angle
• Suitable for low-power applications and situations requiring large angular deviation