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- W2912014471 abstract "Slow-light performance based on photonic-crystal coupled-cavity waveguide (PC-CCW) is investigated with low-dispersion pulse transmission. A chain of periodically arranged specific defect cavities of air holes are created along the axis of the waveguide and each of the cavities looks like an irregular hexagon with arrow-like left and right sides to form the PC-CCW. By changing the radius and position of certain defects, slow light modes are achieved. Through optimization, we obtained a highest compromise value for an operating bandwidth of 12.9 nm with an average group index of 70.75 and a normalized delay-bandwidth product (NDBP) of 0.5873. This value of NDBP with low group velocity dispersion is higher than that in other structures based on waveguides or coupled cavities reported previously. The arrow-like shape of the cavity sides is shown to be perfect for reducing the transmission loss of the waveguide. The proposed structure with high NDBP is beneficial for buffering applications and slow light devices." @default.
- W2912014471 created "2019-02-21" @default.
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- W2912014471 date "2019-05-01" @default.
- W2912014471 modified "2023-10-18" @default.
- W2912014471 title "Slow light with high normalized delay-bandwidth product in low-dispersion photonic-crystal coupled-cavity waveguide" @default.
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- W2912014471 doi "https://doi.org/10.1016/j.optcom.2019.01.063" @default.
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