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Related Concept Videos

Oscillations In An LC Circuit01:30

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Related Experiment Video

Updated: Mar 26, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Monolithic device for modelocking and stabilization of frequency combs.

C-C Lee, Y Hayashi, K L Silverman

    Optics Express
    |February 3, 2016
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    Summary
    This summary is machine-generated.

    We developed a hybrid device integrating a III-V semiconductor saturable absorber mirror and graphene electro-optic modulator for compact frequency combs. This innovation simplifies laser design and enables portable, fieldable phase-coherent systems.

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    Area of Science:

    • Optoelectronics
    • Laser Physics
    • Materials Science

    Background:

    • Frequency combs are crucial for precise measurements but often require complex, bulky setups.
    • Existing modulators for frequency combs can be inefficient or require high driving voltages.
    • Integrating multiple functionalities into a single device is key to miniaturizing laser systems.

    Purpose of the Study:

    • To demonstrate a novel hybrid device for monolithic modelocking and noise suppression in frequency combs.
    • To develop a compact and efficient solution for generating phase-coherent laser light.
    • To pave the way for portable and fieldable frequency comb technology.

    Main Methods:

    • Integration of a III-V semiconductor saturable absorber mirror with a graphene electro-optic modulator.
    • Utilizing a pure loss modulation scheme with a bandwidth exceeding 5 MHz.
    • Employing a low voltage driver for device operation.

    Main Results:

    • Achieved a monolithic solution for modelocking and noise suppression in a frequency comb.
    • Demonstrated a pure loss modulation bandwidth greater than 5 MHz.
    • The hybrid device exhibits compactness, simplicity, and low insertion loss compared to metallic-mirror modulators.

    Conclusions:

    • The developed hybrid device offers a significant advancement in frequency comb technology.
    • This integration simplifies laser cavity design and reduces system complexity.
    • The technology holds promise for the development of portable and fieldable phase-coherent frequency combs.