Ultrawide-band La-codoped Bi2O3-based EDFA for L-band DWDM systems

B. O. Guan, Hwa Yaw Tam, S. Y. Liu, Ping Kong Alexander Wai, N. Sugimoto

Research output: Journal article publicationJournal articleAcademic researchpeer-review

32 Citations (Scopus)


The demonstration of a 253-cm-long Lanthanum-codoped Bi2O3-based erbium-doped fiber which provides gain of greater than 20 dB and noise figure less than 6.7 dB to 142 dense wavelength-division-multiplexing channels simultaneously over an extended wavelength range of 58 nm from 1554 to 1612 nm is reported. The 3-dB (gain of 17-20 dB) bandwidth of the erbium-doped fiber amplifier is 54 nm when it is pumped with 350 mW of 1480-nm light. The power conversion efficiency of the fiber is about 54%.
Original languageEnglish
Pages (from-to)1525-1527
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number11
Publication statusPublished - 1 Nov 2003


  • Erbium-doped fiber (EDF)
  • Optical fiber amplifiers
  • Optical fiber communication
  • Wavelength-division multiplexing (WDM)

ASJC Scopus subject areas

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


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