A silver sulfide saturable absorber (SA) was successfully employed in an Erbium-doped fiber laser (EDFL) cavity for short and ultrashort pulse generations. The Q-switched laser was obtained with an operation wavelength of 1566 nm, pulse rate of 93.81 kHz, and pulse duration of 1.68 μs at a 187.04 mW pump. As the EDFL cavity was optimized for mode-locking operation by adding 100 m long single mode fiber, a stable soliton pulse train operating at 1564 nm was realized with a constant repetition rate of 1.88 MHz and pulse duration of 3.01 ps. The good nonlinear characteristics of the SA make synergetic contributions to the generation of high-performance Q-switched and mode-locked lasers.

Original languageEnglish
Pages (from-to)365-372
Number of pages8
JournalMicrowave and Optical Technology Letters
Issue number1
Publication statusPublished - Jan 2023


  • Q-switching
  • mode-locking
  • saturable absorber
  • silver sulfide


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