We propose sub-band digital back propagation (DBP). We confirmed performance improvement by 4 sub-band DBP with 10-WDM 64-Gbaud 64QAM transmission over 840 km. Total FFT/IFFT size becomes approximately one quarter of full-band DBP.
© 2019 The Author(s)
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
Login to access OSA Member Subscription