Mode junction photonics with a symmetry-breaking arrangement of mode-orthogonal heterostructures

  • Yu S
  • Piao X
  • Koo S
 et al. 
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Abstract

Junction structures provide the foundation of digital electronics and spintronics today. An equivalent, a photonic junction to achieve systematic and drastic control of photon flow is currently missing, but is mandatory for serious all-optical signal processing. Here we propose a photonic junction built upon mode-orthogonal hetero-structures, as a fundamental structural unit for photonic integrated circuits. Controlling the optical potential of mode-orthogonal junctions, the flow of photons can be dynamically manipulated, to complete the correspondence to the electronic junction structures. Of the possible applications, we provide examples of a photonic junction diode and a multi-junction half-adder, with exceptional performance metrics. Highly directional (41dB), nearly unity throughput, ultra-low threshold-power, high quality signal regeneration at 200Gb/s, and all-optic logic operations are successfully derived with the self-induced, bi-level dynamic mode-conversion process across the junction.

Author-supplied keywords

  • Computer Simulation
  • Computer-Aided Design
  • Equipment Design
  • Equipment Failure Analysis
  • Light
  • Models
  • Optical Devices
  • Photometry
  • Photometry: instrumentation
  • Photons
  • Radiation
  • Scattering
  • Semiconductors
  • Theoretical

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Authors

  • Sunkyu Yu

  • Xianji Piao

  • Sukmo Koo

  • Jung H. Shin

  • Seung Hoon Lee

  • Bumki Min

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