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Related Experiment Video

Updated: Jul 3, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

LiDAR demonstration using an InP-based optical phased array with a 3D-printed beam-shaping element.

S Singer, Y Xu, Y Bao

    Optics Express
    |July 2, 2026
    PubMed
    Summary
    This summary is machine-generated.

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    This study presents an Indium Phosphide (InP)-based optical phased array (OPA) for integrated LiDAR systems. The novel OPA combines beam steering with optical ranging capabilities for the first time.

    Area of Science:

    • Photonics
    • Integrated Optics
    • LiDAR Technology

    Background:

    • Optical phased arrays (OPAs) are crucial for beam steering in photonic integrated circuits (PICs).
    • Existing OPAs often face limitations in beam shaping and integration with ranging functionalities.
    • Indium Phosphide (InP) is a key material for high-performance photonic devices.

    Purpose of the Study:

    • To demonstrate an InP-based OPA integrated with semiconductor optical amplifiers (SOAs) and p-i-n phase shifters.
    • To integrate 3D-printed optical elements for beam shaping and surface-normal redirection.
    • To showcase the OPA's capability in a light-detection-and-ranging (LiDAR) experiment combined with optical ranging.

    Main Methods:

    • Fabrication of an InP-based OPA chip featuring integrated SOAs and p-i-n phase shifters.

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    Last Updated: Jul 3, 2026

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  • Attachment of 3D-printed optical elements to the PIC facet for beam manipulation.
  • Integration of the OPA with a receiver for a LiDAR system setup.
  • Performance evaluation through laboratory ranging experiments.

    • Main Results:

    • Successful demonstration of an InP-based OPA with integrated beam steering and optical ranging.
    • Effective beam shaping and redirection to the surface-normal of the PIC using 3D-printed optics.
    • Viability of the OPA confirmed through successful LiDAR and ranging experiments.

    Conclusions:

    • This work represents the first demonstration of an InP-based OPA capable of simultaneous optical ranging and beam steering.
    • The integrated approach offers a promising pathway for advanced LiDAR systems.
    • The combination of InP photonics and 3D-printed optics enables novel functionalities in integrated optical systems.