Vol. 46, Issue 4, pp. 665-672

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  2. Optica Applicata Vol. 46, Issue 4, pp. 665-672 (2016)
Vol. 46 Issue 4 pp. 665-672

A polarization selective beam splitter based on a subwavelength multisubpart profile grating structure

Y. Xiao, L. Huang, H. Wu, X. Sun, W. Xiao, J. Duan

Keywords

diffraction and gratings, polarizing beam splitter (PBS), leaky-mode resonance (LMR)

Abstract

In this study, a polarization selective beam splitter constructed by only a single layer subwavelength multisubpart profile grating is presented. Rigorous coupled-wave analysis is adopted to investigate the properties of the structure. It is shown that for a transverse electric polarized wave, the device demonstrates very high reflectivity (>97%) from 1.46 to 1.58 μm; and for a transverse magnetic polarized wave, at the wavelength of 1.55 μm, it exhibits about 50/50 beam ratio under normal incidence. To evaluate the response of the polarizing beam splitters under variation in structure parameters, we also investigated the fabrication tolerances of the device.

Vol. 46
Issue 4
pp. 665-672

0.77 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology