Glan-Laser Polarizer is specifically designed to deal with high-energy laser light. The polarizer is assembled of two same birefringent crystal prisms with an air space(no glue). It has two polished side surfaces to enable the rejected beams to escape, thus avoiding damage due to excessive heating of the prisms. The provision of two escape windows allows use of this type of polarizer in both directions, e.g. intra cavity gain switching.

High Transmission Glan Laser Polarizer(Brewster Angle Polarizer) is designed such that all four interfaces for the transmitted extraordinary beam are at Brewster’s angle. This results in a transmission to p-polarized input beams as high as 98%. Note that a lateral displacement is introduced to the emerging beam. Two escape windows are included. For the high transmission of wide range of wavelength, the polarizer’s acceptance angle should be within ±5°.

Wollaston polarizer offers the widest deviation angle of beam-displacing polarizers. This polarizer is made of two birefringent prisms cemented together. Both output beams are deviated symmetrically from the input beam axis. Since the output deviations are chromatic, Wollaston polarizers have been used in spectrometers as well as in polarization analyzers.

Rochon polarizer is made of two birefringent prisms by optically contacted or cemented together. The first prism, cut parallel to the optic axis, receives the light. The second prism, with the optic axis at right angles, transmits the ordinary ray without deviation but the extraordinary ray is deflected. Rochon polarizer can be used to produce plane-polarized light and it can also be used with ultraviolet light. Any separation angle can be designed for specific wavelength upon the requirement.