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13 November 2014 Slab-modulated uniform and sampled Bragg gratings in SOI ridge waveguides
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Abstract
We demonstrate uniform and sampled Bragg gratings in silicon-on-insulator ridge waveguides with slab-modulated sidewall corrugations. Coupling coefficient and bandwidth can be precisely controlled by varying the distance between the slab-sidewall corrugations and the ridge. A bandwidth of 3 nm at the center wavelength of 1550 nm for uniform Bragg gratings is achieved for 100 nm slab-sidewall corrugation. Based on this structure, sampled gratings with 0.4 nm bandwidth are proposed. The measured results show good agreement with theoretical analyses.
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Huiye Qiu, Ping Yu, Yuxia Su, and Xiaoqing Jiang "Slab-modulated uniform and sampled Bragg gratings in SOI ridge waveguides", Proc. SPIE 9277, Nanophotonics and Micro/Nano Optics II, 92771S (13 November 2014); https://doi.org/10.1117/12.2073572
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