La-Codoped Bismuth-Based Erbium-Doped Fiber Ring Laser With 106-nm Tuning Range

H. L. Liu, Hwa Yaw Tam, W. H. Chung, Ping Kong Alexander Wai, N. Sugimoto

Research output: Journal article publicationJournal articleAcademic researchpeer-review

24 Citations (Scopus)


Ultrawide-band tunable fiber ring lasers using 84.6-cm-long lanthanum-codoped bismuth-based erbium doped fiber and a narrow-band tunable microelectromechanical system filter are reported. The fiber ring lasers can be continuously tuned from 1520 to 1626 nm, covering both the C- and L-bands. The laser has two outputs; the high output power port exhibits better than 35-dB wavelength extinction ratio, and the second output has much lower power but exhibits a large extinction ratio of better than 60 dB.
Original languageEnglish
Pages (from-to)297-299
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number2
Publication statusPublished - 1 Jan 2005


  • Continuous-wave laser
  • fiber ring laser
  • lanthanum (La)-codoped bismuth-based erbium-doped fiber (Bi-EDF)
  • laser tuning
  • microelectromechanical system (MEMS) filter

ASJC Scopus subject areas

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


Dive into the research topics of 'La-Codoped Bismuth-Based Erbium-Doped Fiber Ring Laser With 106-nm Tuning Range'. Together they form a unique fingerprint.

Cite this