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\bibitem{Nagatsuma_etal2000} Nagatsuma, T., Hirata, A., Royter, Y., Shinagawa, M., Furuta, T., Ishibashi, T., et al. (2000). A 120-GHz integrated photonic transmitter. In \textit{Proc. International topical meeting on microwave photonics (MWP 2000)} (pp. 225--228).

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