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Related Experiment Video

Updated: Mar 21, 2026

Quasi-light Storage for Optical Data Packets
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Flexible wavelength de-multiplexer for elastic optical networking.

Rui Zhou, M Deseada Gutierrez Pascual, Prince M Anandarajah

    Optics Letters
    |May 14, 2016
    PubMed
    Summary
    This summary is machine-generated.

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    We developed a flexible wavelength de-multiplexer for optical comb-based networks, achieving 24-hour frequency stability. This device supports various channel spacings and enables efficient wavelength division multiplexed transmissions.

    Area of Science:

    • Photonics and Optical Communications
    • Telecommunications Engineering
    • Applied Physics

    Background:

    • Elastic optical networking demands flexible and stable wavelength management.
    • Traditional de-multiplexers face limitations in adaptability and precision.
    • Optical frequency combs offer a promising avenue for advanced network solutions.

    Purpose of the Study:

    • To introduce an injection-locked flexible wavelength de-multiplexer.
    • To evaluate its frequency stability and channel spacing capabilities.
    • To demonstrate its application in a mixed symbol rate and modulation format WDM system.

    Main Methods:

    • Utilized an injection-locked technique for the de-multiplexer.
    • Demonstrated both equal (50 GHz, 87.5 GHz) and unequal (e.g., 75G-50G-100 GHz) channel spacings.

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  • Implemented a wavelength division multiplexed transmission system with mixed symbol rates (12.5 GBaud, 40 GBaud) and modulation formats (PDM-QPSK, OOK).

    • Main Results:

    • Achieved 24-hour frequency stability of 1 kHz.
    • Successfully demonstrated flexible channel spacing configurations.
    • Observed a minimal 0.6 dB receiver sensitivity penalty for 100 km transmitted signals.

    Conclusions:

    • The developed de-multiplexer offers high frequency stability and flexibility for elastic optical networks.
    • It effectively supports complex WDM transmissions with mixed parameters.
    • This technology paves the way for more efficient and adaptable optical communication systems.