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A compact high-performance decoder using the resonant cavities in photonic crystal structure

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Abstract

In this study, a rod-type photonic crystal structure for decoding operation is presented. Realizing nonlinear defects with different radii in resonant cavities makes changes in the resonant wavelengths. Using different amounts of power at input ports results in dropping operation via the cavities corresponding to different working cases. Accordingly, an all-optical 2-to-4 decoder is designed in an area of 86 µm2. A comparison of the designed structure with other photonic crystal-based decoders demonstrates that the presented decoder is smaller than the previous decoders. This feature is highly needed for optical circuits. In addition, the time response of the proposed device is almost 0.2 ps, proper for high-speed applications. The contrast ratio of 13.58 dB is taking account for an excellent characteristic of digital applications. The compactness, fast response, and high contrast ratio confirm the high performance of the presented 2-to-4 decoder, so one can be optimistic about to use of the designed device in optical circuits.

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All data generated or analyzed during this study are included in this published article.

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Funding

This work was supported by Shahid Chamran University of Ahvaz, grant number SCU.EE1401.672.

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Conceptualization: MJM, MS, Methodology: MJM, Formal analysis and investigation: MJM, Writing-original draft preparation: MJM, MS, GA, Writing-review and editing: MJM, MS, GA, Supervision: MS.

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Correspondence to M. Soroosh.

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Maleki, M.J., Soroosh, M. & Akbarizadeh, G. A compact high-performance decoder using the resonant cavities in photonic crystal structure. Opt Quant Electron 55, 852 (2023). https://doi.org/10.1007/s11082-023-05139-3

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  • DOI: https://doi.org/10.1007/s11082-023-05139-3

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