Stable and broad bandwidth multiwavelength fiber ring laser incorporating a highly nonlinear photonic crystal fiber

Ailing Zhang, Heliang Liu, M. S. Demokan, Hwa Yaw Tam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

97 Citations (Scopus)


A stable and broad bandwidth multiwavelength fiber ring laser suitable for use in dense wavelength-division-multiplexing systems is demonstrated. A highly nonlinear photonic crystal fiber is inserted in the ring cavity to stabilize the power fluctuation and broaden the output spectrum. A thin-film Fabry-Pérot etalon filter is used to get stable wavelength lasing. A Sagnac filter is employed to achieve uniform power distribution at each wavelength at the laser output. a laser with a power fluctuation about 0.1 db in each wavelength within 20 min and with wavelength shift of less than 0.016 nm within 10 min is achieved. A stable 24-wavelength lasing operation with wavelength spacing of 0.8 nm within the 3-dB spectral range of 1573-1594 nm and signal-to-noise ratio better than 48 dB is observed experimentally.
Original languageEnglish
Pages (from-to)2535-2537
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number12
Publication statusPublished - 1 Dec 2005


  • Dense wavelength-division multiplexing (DWDM)
  • Erbium-doped fiber
  • Fabry-Pérot (FP) etalon filter
  • Four-wave mixing (FWM)
  • Multiwavelength fiber lasers
  • Nonlinear optics
  • Photonic crystal fiber (PCF)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

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