We propose a new spatial walk-off polarizer that utilizes artificial anisotropic dielectrics. The polarizer is composed of two kinds of periodically laminated dielectric layer. We calculated the characteristics of the polarizer composed of periodically laminated a-Si/SiO2 layers and found that the split angle between the ordinary wave and the extraordinary wave in the polarizer is more than three times larger than that in well-known birefringent crystals, e.g., rutile and calcite. The polarizer holds promise for the miniaturization of polarization beam splitters and polarization-independent isolators.
© 1990 Optical Society of America
Original Manuscript: October 6, 1989
Manuscript Accepted: February 22, 1990
Published: May 1, 1990
K. Shiraishi and S. Kawakami, "Spatial walk-off polarizer utilizing artificial anisotropic dielectrics," Opt. Lett. 15, 516-518 (1990)