Selectable and stable single-frequency fiber laser with flattened power range and sub-kHz linewidth output

Shang En Hsieh, Lan Yin Chen, Ching Hsuan Hsu, Yu Ting Lai, Chien Hung Yeh*, Syu Yang Jiang, Shien Kuei Liaw, Chi Wai Chow

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

To achieve stable and tunable single-longitudinal-mode (SLM) wavelength output, an erbium-doped fiber (EDF) laser with two fiber ring architecture and unpumped EDF based saturable absorber (SA) is demonstrated experimentally. The acquired optical signal to noise ratio (OSNR), wavelength linewidth, output stability and power of the fiber laser over an available tuning bandwidth of 1523.0 to 1569.0 nm are also implemented. Furthermore, this EDF laser configuration also can distribute the output power uniformly in the span of 1527.0 to 1569.0 nm within 0.53 dB power difference.

Original languageEnglish
Article number105513
JournalPhysica Scripta
Volume98
Issue number10
DOIs
StatePublished - 1 Oct 2023

Keywords

  • erbium-doped fiber (EDF)
  • fiber laser
  • saturable absorber (SA)
  • single-longitudinal-mode (SLM)

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