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Optical sinc-shaped Nyquist pulses of exceptional quality

Author

Listed:
  • Marcelo A. Soto

    (EPFL Swiss Federal Institute of Technology, Group for Fibre Optics)

  • Mehdi Alem

    (EPFL Swiss Federal Institute of Technology, Group for Fibre Optics)

  • Mohammad Amin Shoaie

    (EPFL Swiss Federal Institute of Technology, Photonic Systems Laboratory)

  • Armand Vedadi

    (EPFL Swiss Federal Institute of Technology, Photonic Systems Laboratory)

  • Camille-Sophie Brès

    (EPFL Swiss Federal Institute of Technology, Photonic Systems Laboratory)

  • Luc Thévenaz

    (EPFL Swiss Federal Institute of Technology, Group for Fibre Optics)

  • Thomas Schneider

    (EPFL Swiss Federal Institute of Technology, Group for Fibre Optics
    Present address: Institut für Hochfrequenztechnik, Hochschule für Telekommunikation Leipzig, Gustav-Freytag-Straße 43-45, 04277 Leipzig, Germany)

Abstract

Sinc-shaped Nyquist pulses possess a rectangular spectrum, enabling data to be encoded in a minimum spectral bandwidth and satisfying by essence the Nyquist criterion of zero inter-symbol interference (ISI). This property makes them very attractive for communication systems since data transmission rates can be maximized while the bandwidth usage is minimized. However, most of the pulse-shaping methods reported so far have remained rather complex and none has led to ideal sinc pulses. Here a method to produce sinc-shaped Nyquist pulses of very high quality is proposed based on the direct synthesis of a rectangular-shaped and phase-locked frequency comb. The method is highly flexible and can be easily integrated in communication systems, potentially offering a substantial increase in data transmission rates. Further, the high quality and wide tunability of the reported sinc-shaped pulses can also bring benefits to many other fields, such as microwave photonics, light storage and all-optical sampling.

Suggested Citation

  • Marcelo A. Soto & Mehdi Alem & Mohammad Amin Shoaie & Armand Vedadi & Camille-Sophie Brès & Luc Thévenaz & Thomas Schneider, 2013. "Optical sinc-shaped Nyquist pulses of exceptional quality," Nature Communications, Nature, vol. 4(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3898
    DOI: 10.1038/ncomms3898
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