Pump-Controlled Modal Interactions in Microdisk Lasers

  title={Pump-Controlled Modal Interactions in Microdisk Lasers},
  author={S. F. Liew and L. Ge and B. Redding and G. Solomon and H. Cao},
  journal={Physical Review A},
  • S. F. Liew, L. Ge, +2 authors H. Cao
  • Published 2015
  • Physics
  • Physical Review A
  • We demonstrate an effective control of nonlinear interactions of lasing modes in a semiconductor microdisk cavity by shaping the pump profile. A target mode is selected at the expense of its competing modes either by increasing their lasing thresholds or suppressing their power slopes above the lasing threshold. Despite the strong spatial overlap of the lasing modes at the disk boundary, adaptive pumping enables an efficient selection of any lasing mode to be the dominant one, leading to a… CONTINUE READING
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