Impact of Spectral Filtering on Multipulsing Instability in Mode-Locked Fiber Lasers

Xianting Zhang, Feng Li, K. Nakkeeran, Jinhui Yuan, Zhe Kang, J. Nathan Kutz, Ping Kong Alexander Wai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)


We investigate the impact of spectral filtering in mode-locked fiber lasers with an extended geometrical model. Our iterative model, which includes gain, loss, and the pulse shaping effects of chromatic dispersion and self-phase modulation, is used to model the laser cavity dynamics. Simulations show that broadband pulses experience large losses from spectral filtering in the cavity, leading to a number of potential laser instabilities and outcomes such as multipulsing, periodic and chaotic states, or a single pulse which transits to a higher energy state. For narrow band spectral filtering, the laser dynamics is dominated by the gain-loss dynamics in the cavity which causes multipulsing. For broadband spectral filtering, the nonlinearity-induced spectral reshaping of the single pulse can lead to a discontinuous pulse energy transition that circumvents multipulsing. The inclusion of third-order dispersion shows that the multipulsing instability is induced even in the case of broadband spectral filtering.
Original languageEnglish
Article number8103744
JournalIEEE Journal of Selected Topics in Quantum Electronics
Issue number3
Publication statusPublished - 1 May 2018


  • Mode-locked fiber lasers
  • multi-pulsing
  • nonlinear dynamics
  • spectral filtering

ASJC Scopus subject areas

  • Ceramics and Composites
  • Atomic and Molecular Physics, and Optics
  • Materials Chemistry
  • Electrical and Electronic Engineering


Dive into the research topics of 'Impact of Spectral Filtering on Multipulsing Instability in Mode-Locked Fiber Lasers'. Together they form a unique fingerprint.

Cite this