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Related Experiment Video

Updated: Jul 3, 2026

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

Silicon-photonics transmitter using ultra-wideband quantum-dot comb laser-diode towards 34.132 Tbit/s/fiber.

Yun-Han Chang, Yuan-Zeng Lin, Yu-Han Lin

    Optics Express
    |July 2, 2026
    PubMed
    Summary

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    This study demonstrates a high-capacity optical transmitter using silicon photonics, integrating a quantum-dot comb laser and multi-core fiber. The system achieves a 34.132 Tbit/s aggregate data rate, overcoming bandwidth density challenges in optical transceivers.

    Area of Science:

    • Photonics and Optical Communications
    • Semiconductor Devices
    • Data Transmission Technologies

    Background:

    • Current silicon photonics (SiPh) optical transceivers (TRx) face limitations in bandwidth density within confined footprints.
    • Integrating multiple lasers and modulators increases system complexity and size for high-capacity optical engines.

    Purpose of the Study:

    • To demonstrate a proof-of-concept for a high-capacity optical transmitter (Tx).
    • To achieve simultaneous wavelength and spatial multiplexing for increased data rates.
    • To overcome bandwidth density challenges in silicon photonics.

    Main Methods:

    • Integration of four SiPh-based Mach-Zehnder modulators (MZMs).
    • Utilized an O-band ultra-wideband quantum-dot comb laser diode (QDLD) as a single-device multi-wavelength source.

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    Last Updated: Jul 3, 2026

    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

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

    Published on: January 7, 2019

    Quasi-light Storage for Optical Data Packets
    07:45

    Quasi-light Storage for Optical Data Packets

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  • Employed a multi-core fiber (MCF) for spatial multiplexing and four-level pulse amplitude modulation (PAM4) at 212 Gbit/s per channel.

    • Main Results:

    • Achieved an aggregate data rate of 34.132 Tbit/s by combining 23 QDLD comb lines and 7 MCF spatial cores.
    • Demonstrated reliable data transmission with repeated measurements for statistical validity.
    • Maintained an average transmitter-dispersion-eye-closure-quaternary (TDECQ) within 2.02 dB after 2 km of fiber transmission.

    Conclusions:

    • The integrated QDLD and SiPh MZM approach enables simplified system complexity and high bandwidth density.
    • This technology offers a viable solution for future high-capacity optical engines and transceivers.
    • The demonstrated system successfully multiplexes data in both wavelength and spatial domains, achieving unprecedented aggregate data rates.