Erbium-doped fiber dual-ring laser with stable single-longitudinal-mode and 55-nm tuning range

Chien Hung Yeh*, Zi Qing Yang, Tzu Jung Huang, Chi Wai Chow, Yao Jen Chang, Mei Jun Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

In the investigation, we propose and demonstrate a stabilized and wavelength-selectable erbium-doped fiber (EDF) compound-ring laser with single-longitudinal-mode (SLM) oscillation covering both C-band and L-band ranges. Here, the dual-ring-cavity (DRC) scheme with an unpumped EDF-based saturable absorber (SA) is proposed in the EDF laser to guarantee SLM output. The proposed DRC of EDF laser can produce the mode-filter and ultra-narrowband auto-tracking filter effects to suppress the densely multi-longitudinal-mode (MLM) and extend the effective gain of EDF in a wavelength range of 1525.0–1580.0 nm. In addition, the observed output stabilities of power and wavelength in the proposed EDF DRC laser are also experimented and discussed.

Original languageEnglish
Pages (from-to)119-122
Number of pages4
JournalOptics and Laser Technology
Volume106
DOIs
StatePublished - 1 Oct 2018

Keywords

  • Erbium-doped fiber lasers
  • Fiber optics
  • Single-longitudinal-mode (SLM)
  • BAND

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