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Related Experiment Video

Updated: Oct 2, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

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Coherent terahertz wireless communication using dual-parallel MZM-based silicon photonic integrated circuits.

Wonkyoung Lee, Seungjun Han, Sang-Rok Moon

    Optics Express
    |February 25, 2022
    PubMed
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    This study demonstrates high-capacity terahertz (THz) wireless communication using silicon photonics. Advanced digital signal processing overcomes noise and signal impairments for reliable data transmission.

    Area of Science:

    • Photonics
    • Wireless Communication
    • Signal Processing

    Background:

    • Silicon photonics offers solutions for high-capacity wireless transmission beyond 5G/6G.
    • Challenges include THz signal generation, noise-robust detection, inter-channel crosstalk, and additive noise.

    Purpose of the Study:

    • To report coherent terahertz (THz) wireless communication using silicon photonics.
    • To address challenges in THz signal generation and noise-robust detection.

    Main Methods:

    • Utilized a silicon photonic integrated circuit with a dual-parallel Mach-Zehnder modulator (MZM).
    • Optimized circuit structure and fabrication using the figure of merit (FOM) method.
    • Employed advanced digital signal processing (DSP) for IQ imbalance and phase noise compensation.

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    Related Experiment Videos

    Last Updated: Oct 2, 2025

    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
    12:19

    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

    Published on: April 4, 2017

    8.5K
    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

    9.1K
    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
    07:56

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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    Main Results:

    • Achieved improved modulation efficiency and reduced optical loss.
    • Successfully compensated for in-phase and quadrature (IQ) imbalance and phase noise.
    • Demonstrated error-free 1-meter THz wireless transmission at 50 Gbps with bit-error rates below 10-6.

    Conclusions:

    • Coherent THz wireless communication is feasible using optimized silicon photonics and advanced DSP.
    • The developed system effectively mitigates phase noise and transmission impairments.
    • This technology paves the way for future high-capacity wireless networks.