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Proceedings Paper

A high-performance aluminum wire-grid polarizer for the optical telecommunication applications
Author(s): Changkui Hu; Deming Liu
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Paper Abstract

In this study, we propose a high-performance polarizer with Aluminum wire-grid structure that an antireflection layer (AR) is deposited between the metal wires and the transparent substrate. The polarization properties of the polarizer are analyzed in detail using rigorous coupled wave analysis (RCWA). The theoretical research shows that aluminum wire-grid polarizer has high transmission coefficient and extinction ratio in near infrared, as well as uniform performance with wide variations in the angle of incidence. For the fiber communication window of 1550nm, the transmittance and the extinction ratio are 95.4% and 35.3dB, respectively. Furthermore, a layer of Al203 forms rapidly on the aluminum wires even in high vacuum, the effect of the metal oxide layers on the polarization properties is modeled and analyzed. The results have shown that the polarizer with oxide layers coating on the wires still provides high performance. These features with their small form factor make it has potential for use in many integrated optical applications.

Paper Details

Date Published: 11 November 2008
PDF: 6 pages
Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 71344J (11 November 2008); doi: 10.1117/12.804066
Show Author Affiliations
Changkui Hu, Huazhong Univ. of Science and Technology (China)
Wuhan Univ. of Technology (China)
Deming Liu, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 7134:
Passive Components and Fiber-based Devices V
Ming-Jun Li; Ping Shum; Ian H. White; Xingkun Wu, Editor(s)

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