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Related Experiment Video

Updated: Oct 24, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Fiber-based biphoton source with ultrabroad frequency tunability.

Santiago Lopez-Huidobro, Markus Lippl, Nicolas Y Joly

    Optics Letters
    |August 13, 2021
    PubMed
    Summary
    This summary is machine-generated.

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    We developed a tunable biphoton source using xenon-filled hollow-core photonic crystal fiber. This novel approach allows for significant frequency tunability, crucial for advanced quantum applications.

    Area of Science:

    • Quantum optics
    • Photonics

    Background:

    • Tunable biphotons are essential for quantum applications.
    • Applications often require photon pairs with large frequency differences.
    • Existing solid-core fiber sources have limitations in tunability.

    Purpose of the Study:

    • To report a novel tunable biphoton source.
    • To demonstrate tunability using a xenon-filled hollow-core photonic crystal fiber.
    • To overcome limitations of solid-core fiber biphoton sources.

    Main Methods:

    • Utilized a xenon-filled hollow-core photonic crystal fiber.
    • Achieved tunability by adjusting the gas pressure inside the fiber.
    • Tailored the fiber's dispersion landscape through pressure control.

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    Related Experiment Videos

    Last Updated: Oct 24, 2025

    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
    12:19

    Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

    Published on: April 4, 2017

    8.6K
    Generation and Coherent Control of Pulsed Quantum Frequency Combs
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    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

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    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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    Main Results:

    • Reported a maximum tunability of 120 THz over a 4 bar pressure range.
    • Demonstrated a continuous frequency shift of 30 THz/bar.
    • Achieved an octave-spanning frequency separation between photon pairs at 21 bar.
    • Observed broad bandwidths for both photons even with large frequency separation.
    • Generated a 110 THz broad band around the pump frequency at 17 bar.

    Conclusions:

    • The xenon-filled hollow-core photonic crystal fiber offers a highly tunable biphoton source.
    • This method overcomes the limitations of solid-core fiber sources for frequency-tunable biphotons.
    • The source is suitable for quantum applications requiring widely separated photon frequencies.