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Temporal ghost imaging with random fiber lasers.

Han Wu, Bing Han, Zinan Wang

    Optics Express
    |April 1, 2020
    PubMed
    Summary
    This summary is machine-generated.

    Random fiber lasers enable advanced time-domain ghost imaging by providing uncorrelated intensity fluctuations. This overcomes limitations of conventional lasers, improving ultrafast waveform retrieval.

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    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Quantum Imaging

    Background:

    • Time-domain ghost imaging requires light sources with random, uncorrelated temporal intensity fluctuations.
    • Conventional multi-mode cavity-based fiber lasers often exhibit correlations that limit waveform retrieval.
    • Ultrafast waveform retrieval is crucial for various scientific and technological applications.

    Purpose of the Study:

    • To investigate the suitability of random fiber lasers for time-domain ghost imaging.
    • To analyze the temporal intensity correlations of random fiber lasers.
    • To compare the performance of random fiber lasers against cavity-based fiber lasers in ghost imaging setups.

    Main Methods:

    • Characterization of temporal intensity fluctuations in a random fiber laser across different operating regimes.
    • Implementation and comparison of random fiber lasers and cavity-based fiber lasers in temporal ghost imaging experiments.
    • Analysis of correlation properties and their impact on waveform retrieval fidelity.

    Main Results:

    • Random fiber lasers exhibit desirable uncorrelated temporal intensity fluctuations.
    • Random fiber lasers demonstrate superior performance in time-domain ghost imaging compared to cavity-based fiber lasers.
    • Cavity-based fiber lasers show artefacts in long-duration waveform retrieval due to round-trip time correlations.

    Conclusions:

    • Random fiber lasers are highly effective light sources for time-domain ghost imaging.
    • The use of random fiber lasers significantly enhances the accuracy and capability of ultrafast waveform retrieval.
    • Random fiber lasers offer a significant advancement over conventional cavity-based lasers for ghost imaging applications.