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Proceedings Paper

Design of waveguide grating filter with an antireflective surface using approximate and rigorous methods
Author(s): Tian Sang; Tuo Cai; Wulei Zhou; Xiaowei Zhang; Fang Liu
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Paper Abstract

Waveguide grating filter with an antireflective surface is designed by using the equivalent homogeneous thin-film model. The spectral properties are investigated by using the rigorous method based on the calculated parameters. It is shown that the equivalent homogeneous thin-film model may provide a reliable approximation in estimating the resonance locations of the filters even for the surface-relief grating structure. The validity of the design model decreases with the increase of the refractive index contrast of the grating layer for a fixed grating filling factor.

Paper Details

Date Published: 5 December 2011
PDF: 6 pages
Proc. SPIE 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 81970C (5 December 2011); doi: 10.1117/12.904501
Show Author Affiliations
Tian Sang, Qiannan Normal College for Nationalities (China)
Tuo Cai, Qiannan Normal College for Nationalities (China)
Wulei Zhou, Qiannan Normal College for Nationalities (China)
Xiaowei Zhang, Qiannan Normal College for Nationalities (China)
Fang Liu, Qiannan Normal College for Nationalities (China)


Published in SPIE Proceedings Vol. 8197:
2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Yunlong Sheng; Han-Ping Shieh; Kimio Tatsuno, Editor(s)

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