Dual-wavelength Er-doped fiber laser based on phase sampled fiber Bragg grating

Heng Ji, Sigang Yang, Ye Zhang, Shizhong Xie

Research output: Contribution to journalArticlepeer-review


A dual-wavelength distributed feedback (DFB) fiber laser based on phase sampling is proposed and demonstrated. Change of phase and sampling period is introduced at different positions along a sampling Bragg grating. It is demonstrated theoretically that this structure can provide separate resonant cavities to overcome mode competition caused by gain homogeneous broading. A 0.46 nm-spaced dual-wavelength DFB fiber laser is achieved on an Er-doped fiber with exciter laser and homogeneous phase plate. Experiments shows that dual-wavelength lasing is achieved and laser power is in reverse proportion with coupling coefficient of the FBG.

Original languageEnglish (US)
Pages (from-to)919-922
Number of pages4
JournalGuangxue Xuebao/Acta Optica Sinica
Issue number5
StatePublished - May 2008
Externally publishedYes


  • Distributed feedback fiber laser
  • Dual-wavelength fiber laser
  • Fiber Bragg grating
  • Lasers
  • Phase sampling

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


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