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Related Experiment Video

Updated: Jun 22, 2026

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Silicon photonic tunable optical dispersion compensator.

Richard Jones, Jonathan Doylend, Paniz Ebrahimi

    Optics Express
    |June 25, 2009
    PubMed
    Summary

    A novel silicon photonic tunable optical dispersion compensator (TODC) significantly extends the reach of 10Gb/s fiber optic links. This compact device offers continuously tunable dispersion, enhancing data transmission capabilities.

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    Area of Science:

    • Photonics
    • Optical Engineering
    • Materials Science

    Background:

    • Optical fiber communication systems suffer from chromatic dispersion, limiting transmission distance.
    • Tunable dispersion compensators are crucial for mitigating this effect and improving link performance.

    Purpose of the Study:

    • To demonstrate a compact and efficient silicon photonic tunable optical dispersion compensator (TODC).
    • To evaluate the performance of the TODC in extending the reach of a 10Gb/s optical link.

    Main Methods:

    • Fabrication of a silicon photonic tunable optical dispersion compensator using 5 thermally tunable Mach-Zehnder interferometers.
    • Characterization of the TODC's tunable dispersion range (0-2000 ps/nm) and tuning power (80mW).
    • Integration of the TODC into a 10Gb/s optical link to assess its impact on transmission distance.

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    Main Results:

    • The demonstrated TODC achieves a continuously tunable dispersion from 0 ps/nm to 2000 ps/nm.
    • The device operates with a low tuning power of 80mW and has a compact footprint (2.8mm x 5.0mm).
    • The TODC successfully extended the reach of a 10Gb/s link from 85km to 150km.

    Conclusions:

    • Silicon photonic technology enables the development of high-performance tunable optical dispersion compensators.
    • The demonstrated TODC is a viable solution for extending the transmission reach of existing and future optical communication systems.
    • The device offers a compelling combination of wide tunable dispersion, low power consumption, and compact size.