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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 38,
  • Issue 15,
  • pp. 3950-3958
  • (2020)

Switchable All-Optical Flip-Flop and Inverter Operations in Quantum Well Microring Laser

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Abstract

We experimentally demonstrate all-optical flip-flop and inverter operations using two adjacent lasing wavelengths in a quantum-well microring laser, and that the state is switched between the flip-flop and inverter operations by changing the phase in the outer cavity composed of busline waveguides. We also propose multimodal rate equations for a microring laser taking into account clockwise and counter-clockwise light propagations. By comparing experimental results and simulated results based on the rate equations, the principle of the switching between the flip-flop and inverter operations is clarified.

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