Polarization Rotator (Multiple order)
ARD-Optics manufactures quartz polarization rotators.
Due to the rotation activity of natural quartz crystal, it also can be used as polarization rotators so that the plane of input linearly polarized beam will be rotated at special angle which is determined by the thickness of quartz crystal. In other words, one can get standard differential rotators of 45 or 90 degrees rotation for wavelength range 1064/532 nm. Rotations for other wavelengths are available on special order. Standard available clear aperture diameters are 10 and 22 mm for round rotators and 90% for rectangular rotators.
Round polarization rotators
Rectangular polarization rotators