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Theoretical study of two-tone single frequency fiber amplifier with gain competition

Du Wen-Bo Leng Jin-Yong Zhu Jia-Jian Zhou Pu Xu Xiao-Jun Shu Bo-Hong

Theoretical study of two-tone single frequency fiber amplifier with gain competition

Du Wen-Bo, Leng Jin-Yong, Zhu Jia-Jian, Zhou Pu, Xu Xiao-Jun, Shu Bo-Hong
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  • Received Date:  25 August 2011
  • Accepted Date:  05 June 2012
  • Published Online:  05 June 2012

Theoretical study of two-tone single frequency fiber amplifier with gain competition

  • 1. College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073, China

Abstract: Introducing the gain competition is an effective way to suppress stimulated Brillouin scattering (SBS) in single frequency fiber amplifier. Steady rate equation describing two-tone single frequency Yb-doped double cladding fiber amplifier with gain competition is deduced based on single frequency amplifier. A theoretical model of this kind of amplifier is set up. With this model, simulation is performed to analyze the influences of wavelength difference between signals, signal power ratio, pump configuration and length of gain fiber on output efficiency of single frequency laser, and the effect of SBS suppression.

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