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General-purpose programmable photonic processor for advanced radiofrequency applications.

Daniel Pérez-López1,2, Ana Gutierrez3,4, David Sánchez4

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Researchers developed the first general-purpose programmable photonic processor. This silicon photonics device integrates electronic and software layers for advanced 5G/6G wireless systems.

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Area of Science:

  • Photonics and Optical Engineering
  • Integrated Circuits
  • Wireless Communication Systems

Background:

  • Microwave photonic subsystems are crucial for 5G/6G wireless systems but lack scalability.
  • Existing solutions for reconfigurable filtering, frequency conversion, arbitrary waveform generation, and beamforming are limited.
  • Photonics offers ultra-high bandwidth, high-speed operation, and low power consumption advantages.

Purpose of the Study:

  • To report the first general-purpose programmable photonic processor.
  • To demonstrate the integration of a silicon photonic programmable core with electronic and software layers.
  • To showcase the processor's capability to implement essential microwave photonic functionalities.

Main Methods:

  • Fabrication of a processor using silicon photonics technology.
  • Integration of a photonic core with electronic monitoring/control and software resource management layers.
  • Programming the processor to perform key microwave photonic functions.

Main Results:

  • The developed processor successfully implements all basic functionalities required for microwave photonic systems.
  • The system leverages silicon photonics for scalable, high-performance wireless applications.
  • Demonstrated synergistic operation between photonic and electronic components.

Conclusions:

  • A general-purpose programmable photonic processor has been successfully realized.
  • This technology enables scalable solutions for next-generation wireless systems.
  • The integrated photonic/electronic/software stack represents a significant advancement in photonic computing.