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112-Gbit/s Intensity-Modulated Direct-Detect Vestigial-Sideband PAM4 over 80km SSMF link

13 October 2015

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A vestigial-sideband 4-level pulse amplitude modulation (VSB-PAM4) scheme is proposed for intensity-modulated, direct-detect optical transmission and experimentally demonstrated to achieve 112Gbit/s per wavelength over 80 km of standard single-mode fiber.