Multiwavelength erbium-doped fiber ring laser source with a hybrid gain medium

D. N. Wang, F. W. Tong, Xiaohui Fang, Wei Jin, Ping Kong Alexander Wai, J. M. Gong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

81 Citations (Scopus)


Erbium-doped fiber is a gain medium exhibiting homogeneous line broadening at room temperature, while a semiconductor optical amplifier has a dominant feature of inhomogeneous line broadening. In this work, a semiconductor optical amplifier is incorporated into the cavity of an erbium-doped fiber ring laser to form a hybrid gain medium. Theoretical analysis shows that such a gain medium supports stable multi-wavelength operation. A stable 24 wavelength lasing operation with wavelength spacing of 0.5 nm and signal-to-noise ratio better than 42 dB is observed experimentally at room temperature.
Original languageEnglish
Pages (from-to)295-301
Number of pages7
JournalOptics Communications
Issue number4-6
Publication statusPublished - 15 Dec 2003


  • Erbium-doped fiber
  • Fiber Bragg grating
  • Fiber laser
  • Multiwavelength
  • Semiconductor optical amplifier

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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