Tailoring PT-symmetric soliton switch.

  title={Tailoring PT-symmetric soliton switch.},
  author={A. Govindarajan and Amarendra K. Sarma and M. Lakshmanan},
  journal={Optics letters},
  volume={44 3},
We theoretically demonstrate soliton steering in parity-time (PT)-symmetric coupled nonlinear dimers. We show that if the length of the PT-symmetric system is set to 2π, contrary to the conventional one that operates satisfactorily well only at the half-beat coupling length, the PT dimer remarkably yields an ideal soliton switch exhibiting almost 99.99% energy efficiency with an ultralow critical power. 

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