L-Band Wavelength-Selectable Erbium Laser with Stable Single-Frequency Oscillation

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


In this presentation, we demonstrate an erbium-doped fiber (EDF) laser by a compound-ring structure to reach the output performances of narrow linewidth, stable single-longitudinal-mode (SLM) and high optical signal to noise ratio (OSNR) in the L-band bandwidth of 1563.0 to 1613.0 nm. Based on the Vernier effect through the compound-ring design, the substantial multi-longitudinal-mode (MLM) noises can be mitigated fully. Furthermore, the relative optical output features of the fiber laser are also performed experimentally.

Original languageEnglish
Article number2996
JournalElectronics (Switzerland)
Issue number19
StatePublished - Oct 2022


  • compound-ring
  • erbium-doped fiber (EDF)
  • fiber laser
  • L-band tunability
  • single-longitudinal-mode (SLM)


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