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Vector soliton switching in a fiber nonlinear directional coupler
Authors:Amarendra K. Sarma
Affiliation:
  • Department of Physics, Indian Institute of Technology Guwahati 781039, India
  • Abstract:This paper reports a detailed numerical study of soliton switching in a high as well as low birefringent nonlinear coupler. It is shown that by controlling the polarization angle one can have nearly 100% transmission with excellent switching characteristics. It is shown that soliton remains stable during its propagation inside the coupler. However it is observed that high birefringent coupler exhibits relatively better soliton stability. We show that the coupler could be used as a soliton switch even at an input peak power less than the critical power, the power at which 50-50 power sharing takes place between the two cores, just by a judicious choice of the polarization angle.
    Keywords:Soliton switching   Nonlinear directional coupler   Vector soliton
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