Small and Large Signal Analysis of Photonic Crystal Fano Laser

Aref Rasoulzadeh Zali, Mohammad Kazem Moravvej-Farshi*, Yi Yu, Jesper Mørk

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

We analyze the small- and large-signal response of a photonic crystal Fano laser (PhC-FL). Conventional current modulation, as well as modulation of the laser via the mirror, is investigated using a numerical approach as well as linear smallsignal analysis. The results show that the amplitude modulation bandwidth of one of the laser ports (the through-port) and the frequency modulation (FM) bandwidth of another port (the cross-port) extend to the THz region. Large-signal simulations of the laser response to a 500 Gbit/s pseudo-random bit sequence modulation of the nanocavity are in good agreement with the predictions of the small-signal analysis. Finally, it is investigated how the design of the Fano mirror, in particular, the qualityfactor (Q) of the nanocavity, affects the modulation properties.
Original languageEnglish
JournalJournal of Lightwave Technology
Volume36
Issue number23
Pages (from-to)5611 - 5616
ISSN0733-8724
DOIs
Publication statusPublished - 2018

Keywords

  • Fano Laser
  • Laser modulation
  • Laser dynamics
  • Fano resonance
  • Photonic Crystal Laser
  • Large-signal
  • Small-signal

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