Tunable and stable single-longitudinal-mode dual-wavelength erbium fiber laser with 1.3 nm mode spacing output

C. H. Yeh*, F. Y. Shih, C. H. Wang, Chi-Wai Chow, S. Chi

*Corresponding author for this work

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

In this investigation, we propose and investigate a stable and tunable dual-wavelength erbium-doped fiber (EDF) ring laser with self-injected Fabry-Perot laser diode (FP-LD) scheme. By using an FP-LD incorporated with a tunable bandpass filter (TBF) within the gain cavity, the fiber laser can lase at two single-longitudinal-mode (SLM) wavelengths simultaneously due to the self-injected operation. The proposed dual-wavelength laser has a good performance of the output power and optical side-mode suppression ratio (SMSR). The laser also shows a wide tuning range from 1523.08 to 1562.26 nm. Besides, the output stabilities of the fiber laser are also discussed. A graph is presented. Output wavelength spectra of the proposed dual-wavelength fiber laser with 100 mW pumping power and 18 mA bias current, in the operating wavelengths of 1523.08 to 1562.26 nm.

Original languageEnglish
Pages (from-to)821-824
Number of pages4
JournalLaser Physics Letters
Volume5
Issue number11
DOIs
StatePublished - 1 Nov 2008

Keywords

  • Dual-wavelength
  • Erbium-doped
  • Fabry-Perot

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