Switchable dual-wavelength erbium-doped fibre laser utilizing two-channel fibre Bragg grating fabricated by femtosecond laser

Fangcheng Shen, Kaiming Zhou, Lin Zhang, Xuewen Shu

Research output: Contribution to journalArticle

Abstract

We propose and demonstrate a switchable dual-wavelength erbium-doped fibre ring laser. Competition between the lasing wavelengths in erbium-doped fibre laser at room temperature is suppressed by incorporating a two-channel fibre Bragg grating (TC-FBG), which consists of two highly localized sub-gratings fabricated by femtosecond laser in single mode fibre. Wavelengths and polarization states of the lasing lines are selected by the TC-FBG. Laser output can be switched between single- and dual-wavelength operations by simply adjusting the polarization controller. Stable dual-wavelength output is verified at room temperature with a power fluctuation less than 0.27 dB, and wavelength fluctuation less than 0.004 nm.

Original languageEnglish
Article number105103
JournalLaser Physics
Volume26
Issue number10
DOIs
Publication statusPublished - 8 Sep 2016

Bibliographical note

© IOP

Keywords

  • erbium doped fiber lasers
  • fiber Bragg gratings
  • multiwavelength laser

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