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An Integrated Optical Circuit Architecture for Inverse-Designed Silicon Photonic Components.

Dusan Gostimirovic1, Richard Soref2

  • 1Department of Electrical and Computer Engineering, McGill University, Montreal, QC H3A 0G4, Canada.

Sensors (Basel, Switzerland)
|January 21, 2023
PubMed
Summary
This summary is machine-generated.

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This study presents a versatile toolkit of silicon photonic devices, designed with inverse design, enabling compact and efficient photonic integrated circuits with low loss and crosstalk for various applications.

Area of Science:

  • Photonics
  • Integrated Optics
  • Materials Science

Background:

  • Photonic integrated circuits (PICs) are crucial for optical communication and computing.
  • Current PIC design often faces challenges in compactness, flexibility, and complexity.
  • A modular, optimized approach is needed to streamline PIC development.

Purpose of the Study:

  • To develop a compact toolkit of inverse-designed silicon photonic devices.
  • To demonstrate the 'plug-and-play' integration of these devices for diverse PICs.
  • To enable the creation of both passive and active photonic circuits with small footprints.

Main Methods:

  • Utilizing inverse design and topological optimization for device creation.
  • Developing a silicon-on-insulator (SOI) platform operating at 1550 nm.
Keywords:
inverse designoptical networksoptical switchessilicon photonics

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  • Implementing a unified, parallel waveguide circuit framework for seamless integration.

    • Main Results:

    • Demonstrated a toolkit including a 2x2 3-dB splitter/combiner, waveguide crossover, and add-drop resonator.
    • Showcased the resonator's adaptability into a 2x2 electro-optical crossbar switch using thermo-optical, phase-change, or free-carrier injection effects.
    • Successfully realized ten different compact PICs with low insertion loss and crosstalk.

    Conclusions:

    • The inverse-designed photonic device toolkit offers a flexible and efficient solution for constructing complex PICs.
    • The 'plug-and-play' approach simplifies circuit design and reduces complexity.
    • This methodology facilitates the development of compact, high-performance photonic integrated circuits.