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We present an electronic technique to control photonic processors based on Mach–Zehnder interferometers. By leveraging transparent photodetectors and local feedback loops, the working point of each interferometer is automatically configured. The concurrency of two control loops per device enables the computation of 2 × 2 vector–matrix multiplications in the analog domain, enabling scalable optical computing.

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Electronic Feedback Control of Mach–Zehnder Interferometers for Scalable Optical Computing

  • 会议论文

  • 发表日期：

    2026年

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  • Alessandro di Tria,
  • Marcelo Carnica,
  • Edoardo Mauri,
  • Giorgio Ferrari,
  • Marco Sampietro,
  • Francesco Zanetto

摘要

We present an electronic technique to control photonic processors based on Mach–Zehnder interferometers. By leveraging transparent photodetectors and local feedback loops, the working point of each interferometer is automatically configured. The concurrency of two control loops per device enables the computation of 2 × 2 vector–matrix multiplications in the analog domain, enabling scalable optical computing.