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Proceedings Paper

Novel polarization beam splitters based on simple dielectric periodic structure
Author(s): Yuan Zhang; Wei Xue; Yurong Jiang
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Paper Abstract

We study a special 1D periodic structure with alternative high and low refractive index materials. Such a structure shows different equal-frequency contours for different (TE and TM) polarizations. At designed frequencies, for TE polarization, the energy direction of refractive wave will always have the same direction regardless of the incident angle (that is our structure has a fixed optical thickness for all incident angles); while for TM polarization, the refractive angle will change as the incident angle varies. Based on this structure, a compact polarization beam splitter (PBS) is proposed with high transmission for both polarizations, and its performance is improved by introducing total reflection of the side-wall. Furthermore, a broad-angle PBS which working over a large range of incident angle is achieved by stacking two such 1D structures together; and a method is proposed to improve the its working band width.

Paper Details

Date Published: 13 May 2010
PDF: 10 pages
Proc. SPIE 7713, Photonic Crystal Materials and Devices IX, 77131L (13 May 2010); doi: 10.1117/12.854032
Show Author Affiliations
Yuan Zhang, Beijing Institute of Technology (China)
Wei Xue, Beijing Institute of Technology (China)
Yurong Jiang, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 7713:
Photonic Crystal Materials and Devices IX
Hernán R. Míguez; Sergei G. Romanov; Lucio Claudio Andreani; Christian Seassal, Editor(s)

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