Ultralow Timing Jitter 40-Gb/s Clock Recovery Using a Self-Starting Optoelectronic Oscillator

Jacob Lasri*, Preetpaul Devgan, Renyong Tang, Prem Kumar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Scopus citations


We demonstrate clock recovery with ultralow timing jitter by using a novel self-starting optoelectronic oscillator that is based on an electroabsorption modulator in a fiber extended cavity. The oscillator simultaneously generates a 10-GHz-rate microwave signal and a train of 15-ps optical pulses with ∼40-fs timing jitter in the 100-Hz to 1-MHz range. Under direct optical-injection locking of the oscillator, we demonstrate simultaneous error-free extraction of both the electrical and the optical clocks of 10-GHz rate from either a single-channel 10-Gb/s return-to-zero data stream or a four-channel 40-Gb/s optical time-division-multiplexed data stream.

Original languageEnglish (US)
Pages (from-to)263-265
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number1
StatePublished - Jan 2004


  • Electroabsorption modulator (EAM)
  • Optical clock recovery
  • Optical demultiplexing
  • Optical injection locking
  • Optoelectronic oscillator (OEO)
  • Timing jitter

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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