Generation of triangular pulses in normally dispersive fibre

Research output: Chapter in Book/Published conference outputConference publication


In this scheme, nonlinearity and dispersion in the NDF lead to various reshaping processes of an initial, conventional pulse according to the chirping value and power level at the input of the fibre. In particular, we have observed that triangular-shaped pulses can be generated for sufficiently high energies and a positive initial chirp parameter. In our experiments, 2.8 ps-FWHM, transform-limited pulses generated from a mode-locked fibre laser source at a repetition rate of 1.25 GHz were pre-chirped by propagating the pulses through different lengths of standard mono-mode fibre. The chirped pulses were then amplified to different power levels before being launched into a 2.3 km section of True Wave fibre (TWF). The corresponding numerically calculated pulse temporal intensity profile and numerical and experimental second-harmonic generation frequency-resolved optical gating (SHG FROG) spectrograms were also derived. In conclusion, we have presented numerical modelling results which show the system design parameters required for the generation of triangular-shaped pulses in a nonlinear NDF, and experimentally demonstrated triangular pulse shaping in conventional NDF.
Original languageEnglish
Title of host publicationEuropean Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference.
Subtitle of host publicationCLEO Europe - EQEC 2009.
Number of pages1
ISBN (Electronic)978-1-4244-4080-1
ISBN (Print)978-1-4244-4079-5
Publication statusPublished - 14 Jun 2009
EventThe European Conference on Lasers and Electro-Optics, CLEO_Europe 2009 - Munich, United Kingdom
Duration: 14 Jun 200919 Jun 2009

Publication series

NameConference publications


ConferenceThe European Conference on Lasers and Electro-Optics, CLEO_Europe 2009
Country/TerritoryUnited Kingdom


  • photonics
  • optical pulses
  • lasers


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