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Performance Enhancement of 112 Gb/s PAM-4 Amplifier-free 40km Transmission with record sensitivity Using O-band 25G-class Directly Modulated Laser

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An amplifier-less transmission of a single-wavelength 112Gb/s PAM4 signal over 40km using O-band 25G class DML and advanced DSP with a record receiver sensitivity of −12dBm@HD-FEC is experimentally demonstrated. It also beats the KP4 FEC limit for the first time.

© 2019 The Author(s)

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