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Two-photon imaging of soliton dynamics

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  • Łukasz A. Sterczewski

    (Wroclaw University of Science and Technology)

  • Jarosław Sotor

    (Wroclaw University of Science and Technology)

Abstract

Optical solitary waves (solitons) that interact in a nonlinear system can bind and form a structure similar to a molecule. The rich dynamics of this process have created a demand for rapid spectral characterization to deepen the understanding of soliton physics with many practical implications. Here, we demonstrate stroboscopic, two-photon imaging of soliton molecules (SM) with completely unsynchronized lasers, where the wavelength and bandwidth constraints are considerably eased compared to conventional imaging techniques. Two-photon detection enables the probe and tested oscillator to operate at completely different wavelengths, which permits mature near-infrared laser technology to be leveraged for rapid SM studies of emerging long-wavelength laser sources. As a demonstration, using a 1550 nm probe laser we image the behavior of soliton singlets across the 1800–2100 nm range, and capture the rich dynamics of evolving multiatomic SM. This technique may prove to be an essential, easy-to-implement diagnostic tool for detecting the presence of loosely-bound SM, which often remain unnoticed due to instrumental resolution or bandwidth limitations.

Suggested Citation

  • Łukasz A. Sterczewski & Jarosław Sotor, 2023. "Two-photon imaging of soliton dynamics," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-39045-9
    DOI: 10.1038/s41467-023-39045-9
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    References listed on IDEAS

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    1. Wenle Weng & Romain Bouchand & Erwan Lucas & Ewelina Obrzud & Tobias Herr & Tobias J. Kippenberg, 2020. "Heteronuclear soliton molecules in optical microresonators," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    2. Z. Q. Wang & K. Nithyanandan & A. Coillet & P. Tchofo-Dinda & Ph. Grelu, 2019. "Optical soliton molecular complexes in a passively mode-locked fibre laser," Nature Communications, Nature, vol. 10(1), pages 1-11, December.
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