Generation of dark, Q-switched and bright pulses using erbium-ytterbium-thulium co-doped fiber

Lau Lau Kuen Yao, N. Mohd Yusoff, M. A.W. Abdul Hadi, A. F. Abas, M. T. Alresheedi, M. A. Mahdi*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We demonstrate the generation of dark and bright pulses in a Q-switched laser using an erbium-ytterbium-thulium co-doped fiber. By manipulating pump power while maintaining lasing wavelength at 1571 nm, dark and bright pulses were observed at pump power thresholds 94.1 and 1770 mW with pulse duration of 3 and 71 ns, respectively. Stability of the two regimes were also high across an operating time of 60 min. These findings may be the stepping stone towards realising a laser with flexible operating range at different pulse regimes.

Original languageEnglish
Article number105937
JournalOptics and Laser Technology
Volume124
DOIs
Publication statusPublished - Apr 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • Bright pulses
  • Dark pulses
  • Erbium-doped fiber laser
  • Q-switching

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