Performance of optical automatic gain control EDFA with dual-oscillating control lasers

Chun Liu Zhao, Bai Ou Guan, Hwa Yaw Tam, Weng Hong Chung, Xinyong Dong, Ping Kong Alexander Wai, Xiaoyi Dong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


The authors present a simple configuration for dual-oscillating lasers gain control erbium-doped fiber amplifier (EDFA) in which dual-oscillating lasers are formed by two pairs of fiber Bragg gratings (FBGs). Experimental results show that dual-oscillating lasers dramatically reduce steady and transient gain variations caused by spectral hole burning and relaxation oscillations, and the dual-oscillating lasers gain controlled EDFAs operate satisfactorily with channel's add/drop frequency up to 43 kHz which is significantly larger than that with single-oscillating laser control. Furthermore, we present detail performance of the gain control EDFAs with different dual-oscillating control lasers. Experimental results show that the function of different dual-oscillating lasers is similar. Thus dual-oscillating lasers can be chosen with large spectral space in order not to affect the signals in optical communication window.
Original languageEnglish
Pages (from-to)281-287
Number of pages7
JournalOptics Communications
Issue number4-6
Publication statusPublished - 1 Sept 2003


  • EDFA
  • Inhomogeneity
  • Optical gain control
  • Relaxation oscillations
  • Spectral hole burning

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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