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Area of Science:

  • Photonics
  • Nonlinear Optics
  • Integrated Photonics

Background:

  • Optical chaos is crucial for secure communication, sensing, and computation.
  • Chaotic microcombs offer potential for generating massive optical chaos.
  • Inter-channel correlation in parallel chaotic systems has been a limiting factor.

Purpose of the Study:

  • To demonstrate massively parallel chaos generation using chaotic microcombs.
  • To investigate and minimize inter-channel correlation in parallel chaotic signals.
  • To showcase applications in random bit generation and decision-making acceleration.

Main Methods:

  • Utilized high-nonlinearity Aluminum Gallium Arsenide on Insulator (AlGaAsOI) platforms.
  • Generated parallel chaotic signals with controlled inter-channel correlation.
  • Developed integrated random bit generators and decision-making accelerators on silicon photonic chips.

Main Results:

  • Achieved parallel chaotic signals with inter-channel correlation below 0.04.
  • Demonstrated a high random number generation rate of 3.84 Terabits per second (Tbps).
  • Successfully implemented a 15-channel integrated random bit generator and a scalable 256-armed bandit accelerator.

Conclusions:

  • Massively parallel chaos generation is feasible with low inter-channel correlation.
  • Integrated photonics platforms enable high-throughput chaotic systems.
  • This work advances chaos-based information processing for communication, sensing, and computation.