Dispersive-grating distributed feedback lasers Academic Article uri icon

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  • This paper proposed a novel distributed feedback (DFB) laser by incorporating a dispersive grating, whose coupling strength is dependent on the operating wavelength. Analysis of the laser threshold conditions shows that the proposed structure guarantees single-mode operation due to the inherent threshold gain discrimination on the two otherwise degenerated lasing modes.


  • Xi, Yanping
  • Li, Xun
  • Sadeghi, Seyed M
  • Huang, Wei-Ping

publication date

  • July 7, 2008