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Related Experiment Video

Updated: Jun 12, 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

Resonantly enhanced radio frequency electrooptic phase modulator.

C M Shum, E A Whittaker

    Applied Optics
    |June 18, 2010
    PubMed
    Summary

    Researchers developed a novel resonant electrooptic phase modulator, reducing radiofrequency power needs by 3 dB. This new device offers tunable peak modulation response from 150 to 350 MHz.

    Area of Science:

    • Photonics and Optical Engineering
    • Electrical Engineering
    • Materials Science

    Background:

    • Conventional traveling wave electrooptic modulators require significant radiofrequency (rf) power.
    • Existing designs have limitations in power efficiency and tunable modulation response.
    • Electrooptic phase modulators are crucial components in optical communication and signal processing.

    Purpose of the Study:

    • To design and fabricate a novel resonant electrooptic phase modulator.
    • To investigate the rf power reduction capabilities of the new modulator.
    • To explore the tunability of the device's peak modulation response.

    Main Methods:

    • Fabrication of a new resonant electrooptic phase modulator.
    • Experimental characterization of the modulator's performance.

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  • Modeling the resonant device as a lumped-element bandpass filter.

    • Main Results:

    • The resonant electrooptic phase modulator achieved a reduction of up to 3 dB in required rf power for the same modulation index compared to traveling wave designs.
    • The peak modulation response was controllably tuned between approximately 150 and 350 MHz by adjusting an external surface mount inductor.
    • Experimental results demonstrated excellent agreement with the lumped-element bandpass filter model.

    Conclusions:

    • The developed resonant electrooptic phase modulator offers significant improvements in rf power efficiency.
    • The device provides a tunable modulation response, enhancing its versatility.
    • The lumped-element bandpass filter model accurately predicts the behavior of the resonant modulator.