Sulikhah SLee S.LHEN-WAI TSAO2022-04-252022-04-252021https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119623029&partnerID=40&md5=7a2f512f632b0f729a94a36303000db0https://scholars.lib.ntu.edu.tw/handle/123456789/607092The PCG-PFLs are proposed here to transmit 56-Gbaud/s PAM-4 signals with high single mode yield of 82.54%. By using a 200-?m long passive section, an enhanced bandwidth >60-GHz can be achieved by the PPR effect. ? OSA 2021, ? 2021 The Author(s)Optical fiber communicationOptical fibersPhotonsDirect modulationEnhanced bandwidthsModulation bandwidthPhoton resonanceSingle mode yieldsBandwidthconference paper2-s2.0-85119623029