A single-mode wavelength-selectable erbium laser based on multiple-fiber-ring design

Chia Jung Tsai, Hao Zhong Chen, Wei Chieh Wang, Chien Hung Yeh*, Yuan You Chen, Deng Yao Yang, Ching Hsuan Hsu, Chi Wai Chow

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In this study, an erbium fiber ring laser is demonstrated by using multiple-fiber-ring (MFR) scheme to reach single-longitudinal-mode (SLM) operation. The proposed MFR architecture can not only mitigate the multi-longitudinal-mode (MLM) induced by the longer fiber length and homogeneous gain broadening of erbium, but also can elongate the tuning scope from C- to part of L-bands. Furthermore, the obtained optical signal to noise ratio (OSNR), output power, laser linewidth and stability of the presented fiber laser are also performed experimentally.

Original languageEnglish
Article number814
JournalOptical and Quantum Electronics
Issue number12
StatePublished - Dec 2022


  • Erbium-doped fiber (EDF)
  • Fiber laser
  • Multiple-ring
  • Single-longitudinal-mode (SLM)
  • Tunability


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