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8 February 2008 20dB-enhanced coupling to slot photonic crystal waveguide based on multimode interference
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Abstract
We experimentally demonstrate a novel slot photonic crystal waveguide for guiding light with low group velocity in a 100-nm-wide low-index region. The unique optical property and structural features of the slotted photonic crystals best match the requirements for active material-based silicon devices. We integrate the novel photonic crystal waveguide with a multimode interference-based coupling structure and measure a 20dB efficiency enhancement compared with direct coupling configuration. The measured transmission spectra are in good agreement with simulated band diagram.
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Xiaonan Chen, Lanlan Gu, Wei Jiang, and Ray T. Chen "20dB-enhanced coupling to slot photonic crystal waveguide based on multimode interference", Proc. SPIE 6899, Photonics Packaging, Integration, and Interconnects VIII, 68990Q (8 February 2008); https://doi.org/10.1117/12.768188
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