Optical Synchronization of a 10-G Ethernet Packet and Time-Division Multiplexing to a 50-Gb/s Signal Using an Optical Time Lens

Hao Hu, Janaina Laguardia Areal, Evarist Palushani, Leif Katsuo Oxenløwe, Anders Clausen, Michael Stübert Berger, Palle Jeppesen

Research output: Contribution to journalJournal articleResearchpeer-review


A 10-G Ethernet packet with maximum packet size of 1518 bytes is synchronized to a master clock with 200-kHz frequency offset using a time lens. The input 10-Gb/s non-return-to-zero packet is at the same time converted into a return-to-zero (RZ) packet with a pulsewidth of 10 ps and then time-division multiplexed with four 10-Gb/s optical time-division-multiplexing (OTDM) channels, thus constituting a 50-Gb/s OTDM serial signal. Error-free performances of the synchronized RZ packet and demultiplexed packet from the aggregated 50-Gb/s OTDM signal are achieved.
Original languageEnglish
JournalI E E E Photonics Technology Letters
Issue number21
Pages (from-to)1583-1585
Publication statusPublished - 2010


  • packet clock recovery
  • optical Fourier transformation (OFT)
  • Ethernet packet
  • optical time-division multiplexing (OTDM)
  • synchronization
  • time lens

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