Volume 34 Issue 03
Mar.  2008
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Zhang Chunxi, Liu Dianjun, Ou Panet al. Optical narrowband filter and its application to fiber lasers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(03): 357-360. (in Chinese)
Citation: Zhang Chunxi, Liu Dianjun, Ou Panet al. Optical narrowband filter and its application to fiber lasers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(03): 357-360. (in Chinese)

Optical narrowband filter and its application to fiber lasers

  • Received Date: 29 Jun 2007
  • Publish Date: 31 Mar 2008
  • Single-mode fiber laser is a very important light sources for optical sensing and optical communication. The coupled mode function of basing on saturable absorber optical narrow-band filter using numerical analysis was soluted. The factors who effected optical narrow-band filter output response properties, for example the length of Erbium-doped-fiber,the absorption coefficient of Erbium-doped-fiber and the pump wave power was analysed. The length of Erbium-doped-fiber composing saturable absorber inversing with the response bandwidth of filter was verificated experimentally. The optical narrow-band filter to fiber laser was applied, then narrow-band single-longitudinal-mode laser output was got, and the linewidth of laser output is about hundreds of Hertz magnitude. The power of output laser is more than 1mW and the lasing time of no mode-hopping is more than 2 hours. The power instability of the fiber laser is less than 0.0287%.

     

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