Gradual symbol rate switching for synchronous operation of flexible optical transceivers

Valery N. Rozental, Sandro M. Rossi, Andrea Chiuchiarelli, Tiago C. Lima, Jacklyn D. Reis, Juliano R F De Oliveira, Darli A A Mello

Research output: Contribution to journalArticleOtherpeer-review

1 Citation (Scopus)


We propose and experimentally validate a novel synchronous symbol rate switching method for digitally shaped optical signals, based on synchronized transmit- and receive-side interpolators. We show that a gradually performed rate adjustment in small discrete steps allows the dynamic equalizer at the receiver to successfully track signal changes. The proposed technique may be exploited, e.g., to reduce power consumption during night-time. Furthermore, the released spectrum may be used to accommodate other short-living opportunistic demands, such as in data center traffic.
Original languageEnglish
Article number7328265
Pages (from-to)505-508
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number4
Publication statusPublished - 15 Feb 2016
Externally publishedYes


  • Elastic optical networks
  • Power efficiency
  • Hitless rate switching

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