Optical automatic dual-laser gain control EDFA by using double pairs of FBGs

Chunliu Zhao, Baiou Guan, Xingyong Dong, Hwa Yaw Tam, Shuzhong Yuan, Xiaoyi Dong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


A simple configure for automatic gain control of optical amplifiers is presented, in which two pairs of FBGs are used to form dual-oscillating lasers. The experimental results suggest that the configure can be employed to significantly reduce surviving channel steady-state and transient power excursion. Moreover, the effects of the gain control EDFA on surviving channel at different add/drop frequency are discussed. Experimental results show that the dual-oscillating laser gain controlled EDFA operates satisfactory with channel's add/drop frequency up to 43 kHz which is significantly higher than that with single-oscillating laser control.
Original languageChinese (Simplified)
Pages (from-to)417-421
Number of pages5
JournalGuangxue Xuebao/Acta Optica Sinica
Issue number4
Publication statusPublished - 1 Apr 2003


  • Erbium-doped fiber amplifier (EDFA)
  • Inhomogeneity
  • Optical gain control
  • Relaxation oscillations
  • Spectral-hole burning

ASJC Scopus subject areas

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

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