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Silicon Mod-MUX-Ring transmitter with 4 channels at 40 Gb/s.

Yang Liu, Ran Ding, Yangjin Ma

    Optics Express
    |July 1, 2014
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    Summary

    We introduce the novel Mod-MUX-Ring architecture for microring-based WDM transmitters. This new design achieves error-free 40 Gb/s operation across four channels, outperforming traditional Lithium Niobate modulators.

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    Area of Science:

    • Photonics and Optical Communications
    • Integrated Optics
    • Wavelength Division Multiplexing (WDM)

    Background:

    • Microring resonators are key components in integrated photonic circuits.
    • Wavelength Division Multiplexing (WDM) transmitters are crucial for high-capacity optical communication systems.
    • Existing modulator technologies face limitations in performance and integration.

    Purpose of the Study:

    • To propose and demonstrate a novel Mod-MUX-Ring architecture for microring-based WDM transmitters.
    • To characterize the performance of a prototype Mod-MUX-Ring transmitter.
    • To compare the performance of the proposed architecture with Lithium Niobate modulators.

    Main Methods:

    • Development of the Mod-MUX-Ring architecture.
    • Fabrication and testing of a 4-channel prototype transmitter.
    • Characterization of channel spacing (400 GHz) and channel rate (40 Gb/s).
    • Measurement of Bit Error Rate (BER) and extinction ratio.
    • Comparative analysis against Lithium Niobate modulators.

    Main Results:

    • Successful demonstration of a 4-channel Mod-MUX-Ring transmitter.
    • Achieved error-free operation (BER < 10^-12) at 40 Gb/s per channel.
    • Obtained a 3 dB extinction ratio under 2.7 V driving voltage.
    • Demonstrated 400 GHz channel spacing.

    Conclusions:

    • The Mod-MUX-Ring architecture represents a significant advancement for microring-based WDM transmitters.
    • The prototype exhibits excellent performance, meeting stringent communication standards.
    • This novel architecture shows potential for high-performance, integrated optical communication systems.