Impact of Spectral Filtering on Multi-pulsing Instability in Mode-locked Fiber Lasers

Xianting Zhang, Feng Li, Kaliyaperumal Nakkeeran, Jinhui Yuan, Zhe Kang, J. Nathan Kutz, P. K. A. Wai

Research output: Contribution to journalArticle

3 Citations (Scopus)
4 Downloads (Pure)

Abstract

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 multi-pulsing, periodic and chaotic states, or a single pulse which transitions 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 multi-pulsing. For broadband spectral filtering, the nonlinearity induced spectral reshaping of the single pulse can lead to a discontinuous pulse energy transition that circumvents multi-pulsing. The inclusion of third order dispersion shows that the multi-pulsing instability is induced even in the case of broadband spectral filtering.
Original languageEnglish
Article number1101309
Pages (from-to)1-9
Number of pages9
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume24
Issue number3
Early online date10 Nov 2017
DOIs
Publication statusPublished - May 2018

Fingerprint

Mode-locked fiber lasers
fiber lasers
pulses
Self phase modulation
Pulse shaping
Chromatic dispersion
broadband
Lasers
Laser resonators
Electron transitions
Electron energy levels
Laser pulses
cavities
laser cavities
phase modulation
lasers
narrowband
nonlinearity
inclusions
energy

Keywords

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

Cite this

Impact of Spectral Filtering on Multi-pulsing Instability in Mode-locked Fiber Lasers. / Zhang, Xianting ; Li, Feng; Nakkeeran, Kaliyaperumal; Yuan, Jinhui ; Kang, Zhe ; Kutz, J. Nathan ; Wai, P. K. A.

In: IEEE Journal of Selected Topics in Quantum Electronics, Vol. 24, No. 3, 1101309, 05.2018, p. 1-9.

Research output: Contribution to journalArticle

Zhang, Xianting ; Li, Feng ; Nakkeeran, Kaliyaperumal ; Yuan, Jinhui ; Kang, Zhe ; Kutz, J. Nathan ; Wai, P. K. A. / Impact of Spectral Filtering on Multi-pulsing Instability in Mode-locked Fiber Lasers. In: IEEE Journal of Selected Topics in Quantum Electronics. 2018 ; Vol. 24, No. 3. pp. 1-9.
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abstract = "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 multi-pulsing, periodic and chaotic states, or a single pulse which transitions 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 multi-pulsing. For broadband spectral filtering, the nonlinearity induced spectral reshaping of the single pulse can lead to a discontinuous pulse energy transition that circumvents multi-pulsing. The inclusion of third order dispersion shows that the multi-pulsing instability is induced even in the case of broadband spectral filtering.",
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AB - 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 multi-pulsing, periodic and chaotic states, or a single pulse which transitions 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 multi-pulsing. For broadband spectral filtering, the nonlinearity induced spectral reshaping of the single pulse can lead to a discontinuous pulse energy transition that circumvents multi-pulsing. The inclusion of third order dispersion shows that the multi-pulsing instability is induced even in the case of broadband spectral filtering.

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