Influence of the UV-induced fiber loss on the distributed feedback fiber lasers

Wei Fan, Bai Chen, Qiquan Qiao, Jialing Chen, Zunqi Lin

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


It was found that the output power of the distributed feedback fiber lasers would be improved after annealing or left unused for several days after the laser had been fabricated, and the output of the fundamental mode would not increase but be clamped while the ±1 order modes would be predominant with the enhancement of the coupling coefficient during the fabrication. The paper discussed the influence of UV-induced fiber loss on the fiber phase-shifted DFB lasers. Due to the gain saturation and fiber internal loss, which included the temperament loss and permanent loss, there was an optimum coupling coefficient for the DFB fiber lasers that the higher internal fiber loss corresponded to the lower optimum values of coupling coefficient.

Original languageEnglish (US)
Pages (from-to)309-313
Number of pages5
JournalOptics and Laser Technology
Issue number4
StatePublished - Jun 2003
Externally publishedYes


  • Coupling coefficient
  • Distributed feedback fiber laser
  • Fiber loss

ASJC Scopus subject areas

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


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