Design of waveguide grating filter with an antireflective surface using approximate and rigorous methods

Tian Sang; Tuo Cai; Wulei Zhou; Xiaowei Zhang; Fang Liu

doi:10.1117/12.904501

5 December 2011 Design of waveguide grating filter with an antireflective surface using approximate and rigorous methods

Tian Sang, Tuo Cai, Wulei Zhou, Xiaowei Zhang, Fang Liu

Author Affiliations +

Proceedings Volume 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments; 81970C (2011) https://doi.org/10.1117/12.904501
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

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.

Citation Download Citation

Tian Sang, Tuo Cai, Wulei Zhou, Xiaowei Zhang, and Fang Liu "Design of waveguide grating filter with an antireflective surface using approximate and rigorous methods", Proc. SPIE 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 81970C (5 December 2011); https://doi.org/10.1117/12.904501

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