Bandwidth programmable optical Nyquist pulse generation in passively mode-locked fiber laser

Sonia Boscolo*, Christophe Finot, Sergei Turitsyn

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We propose and numerically demonstrate a novel simple method to produce optical Nyquist pulses based on pulse shaping in a passively mode-locked fiber laser with an in-cavity flat-top spectral filter. The proposed scheme takes advantage of the nonlinear in-cavity dynamics of the laser and offers the possibility to generate high-quality sinc-shaped pulses with widely tunable bandwidth directly from the laser oscillator. We also show that the use of a filter with a corrective convex profile relaxes the need for large nonlinear phase accumulation in the cavity by offsetting the concavity of the nonlinearly broadened pulse spectrum.
Original languageEnglish
Number of pages8
JournalIEEE Photonics Journal
Issue number5
Early online date25 Sept 2015
Publication statusPublished - Oct 2015

Bibliographical note

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Funding: Leverhulme Trust (Grant RPG-278); and EPSRC Program Grant UNLOC under Grant EP/J017582/1.


  • mode-locked fiber lasers
  • nonlinear fiber optics
  • frequency filtering
  • pulse shaping


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