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Related Experiment Video

Updated: Jul 9, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.0K

Photonic beamforming using a quantum-dash optical frequency comb source.

Yuxuan Xie, Mostafa Khalil, Hao Sun

    Applied Optics
    |December 1, 2023
    PubMed
    Summary
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    We demonstrate photonic beamforming using a quantum-dash optical frequency comb. This technology enables phased antenna arrays with directional radiation and scanning capabilities for broadband applications.

    Area of Science:

    • Photonics
    • Optical Communications
    • Antenna Engineering

    Background:

    • Phased antenna arrays (PAAs) are crucial for modern wireless communication systems.
    • Optical frequency combs (OFCs) offer a versatile platform for generating multiple, stable optical frequencies.
    • Integrating OFCs with PAAs can enhance beamforming capabilities.

    Purpose of the Study:

    • To demonstrate photonic beamforming using a quantum-dash (QD) optical frequency comb (OFC) source.
    • To implement phased antenna arrays (PAAs) with directional radiation and scanning.
    • To evaluate the performance of these systems in terms of beam squint and broadband operation.

    Main Methods:

    • Utilized a QD-OFC source with a 25 GHz free spectral range (FSR) and up to 40 comb lines.

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    Last Updated: Jul 9, 2025

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  • Implemented two types of PAAs: uniform linear array (ULA) and uniform planar array (UPA).
  • Employed a programmable optical filter to select comb lines and tune the OFC's FSR for discrete scanning.

    • Main Results:

    • Achieved directional radiation and scanning using both ULA and UPA configurations.
    • Demonstrated discrete scanning by tuning the OFC's FSR.
    • Evaluated beam squint in ULAs, confirming broadband operation capability.
    • Successfully achieved simultaneous directional radiation and scanning with the UPA.

    Conclusions:

    • Quantum-dash optical frequency combs are effective sources for photonic beamforming.
    • The proposed system enables flexible and controllable beam steering for phased antenna arrays.
    • This approach holds promise for advanced wireless communication and radar systems.