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Updated: May 3, 2026

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Integrated tunable CMOS laser.

Timothy Creazzo, Elton Marchena, Stephen B Krasulick

    Optics Express
    |February 12, 2014
    PubMed
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    A novel tunable CMOS laser for silicon photonics was developed. This integrated laser operates in the C-band and achieves high performance suitable for coherent communications.

    Area of Science:

    • Photonics
    • Integrated Optics
    • Semiconductor Lasers

    Background:

    • Silicon photonics enables advanced optical systems.
    • Integrated lasers are crucial for miniaturization and cost reduction.
    • Achieving high-performance lasers on silicon platforms presents challenges.

    Purpose of the Study:

    • To present an integrated tunable CMOS laser for silicon photonics.
    • To demonstrate a laser fabricated in a commercial CMOS foundry.
    • To achieve C-band operation with high performance for coherent communications.

    Main Methods:

    • Embedding a III-V gain medium within a silicon chip.
    • Hermetically sealing the gain section.
    • Metal bonding the gain section to the silicon substrate for low thermal resistance and to avoid lattice mismatch.

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    Fabrication and Testing of Microfluidic Optomechanical Oscillators
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    Last Updated: May 3, 2026

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    Main Results:

    • Successful fabrication of an integrated tunable CMOS laser.
    • Operation in the C-band.
    • Demonstrated high performance: excellent side mode suppression ratio, low relative intensity noise, and narrow linewidth.

    Conclusions:

    • The developed integrated tunable CMOS laser is suitable for coherent communications.
    • The fabrication method in a commercial CMOS foundry is viable.
    • This work advances the integration of lasers in silicon photonics.