A scheme to expand the delay-bandwidth product in the resonator-based delay lines by optical OFDM technique

Jiangbo Zhu, Li Tao, Ziran Zhang, Minhao Pu, Haiyan Ou, Nan Chi, Siyuan Yu

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We propose a novel scheme to expand the inherent limit in the product of the optical delay and the transmission bandwidth in resonator-based delay lines, with the optical orthogonal frequency division multiplexing (OOFDM) technique. The optical group delay properties of a single ring resonator were theoretically studied, and double-carrier OOFDM signals were transmitted through such a device in the experiment, where the subcarrier-frequencies matched those of the resonant modes in the device. The results show that, although the delay-bandwidth product (DBP) is limited in the order of 50 ps×10 Gb/s for signals on each of the sub-carriers, the total DBP of the system is doubled to 2×50 ps×10 Gb/s due to the double-carrier transmission.
Original languageEnglish
JournalOptics Communications
Volume305
Pages (from-to)240-246
ISSN0030-4018
DOIs
Publication statusPublished - 2013

Keywords

  • Bandwidth
  • Group delay
  • Optical resonators
  • Slow light
  • Waves
  • Orthogonal frequency division multiplexing

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