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Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
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Fabrication and Testing of Photonic Thermometers
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High-performance analog signal processing with photonic integrated circuits.

Francesco Morichetti1

  • 1Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milano, Italy. francesco.morichetti@polimi.it.

Light, Science & Applications
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PubMed
Summary
This summary is machine-generated.

Digital processing faces limitations with increasing data volumes. Photonics integrated circuits offer a promising analog solution to overcome memory, latency, and power challenges in electronic systems.

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Area of Science:

  • * Electrical engineering and computer science
  • * Materials science and optical engineering

Background:

  • * Digital electronic systems are increasingly challenged by memory, latency, and power consumption as data volumes grow.
  • * Traditional digital signal processing offers flexibility but struggles with scalability for massive datasets.

Purpose of the Study:

  • * To explore the potential of analog signal processing as an alternative to digital methods.
  • * To highlight the role of photonics integrated circuits in overcoming current electronic limitations.

Main Methods:

  • * Review of current digital processing challenges.
  • * Analysis of analog signal processing principles.
  • * Investigation of photonics integrated circuit capabilities.

Main Results:

  • * Photonics integrated circuits present a viable path for high-speed, low-power analog signal processing.
  • * Analog approaches can circumvent bottlenecks inherent in digital electronic solutions.

Conclusions:

  • * Photonics integrated circuits are a game-changing technology for future data processing.
  • * A shift towards analog signal processing, enabled by photonics, is becoming increasingly necessary.