Swept-source multimode fiber imaging

High-resolution compressive imaging via a flexible multimode fiber is demonstrated using a swept-laser source and wavelength dependent speckle illumination. An in-house built swept-source allowing for independent control of bandwidth and scanning range is used to explore and demonstrate a mechanical...

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Bibliographic Details
Published inScientific reports Vol. 13; no. 1; p. 8071
Main Authors Lochocki, Benjamin, Ivanina, Aleksandra, Bandhoe, Akje, de Boer, Johannes F., Amitonova, Lyubov V.
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 18.05.2023
Nature Publishing Group
Nature Portfolio
Subjects
639/624
639/624/1107/328
639/624/1107/510
639/766/400
Bandwidths
Cameras
Endoscopy
Humanities and Social Sciences
Illumination
Image processing
Lasers
Light
multidisciplinary
Neuroimaging
Scanning
Science
Science (multidisciplinary)
Sensors
Spectrum allocation
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Summary:High-resolution compressive imaging via a flexible multimode fiber is demonstrated using a swept-laser source and wavelength dependent speckle illumination. An in-house built swept-source allowing for independent control of bandwidth and scanning range is used to explore and demonstrate a mechanically scan-free approach for high-resolution imaging through an ultrathin and flexible fiber probe. The computational image reconstruction is shown by utilizing a narrow sweeping bandwidth of < 10  nm while acquisition time is decreased by 95% compared to conventional raster scanning endoscopy. Demonstrated narrow-band illumination in the visible spectrum is vital for the detection of fluorescence biomarkers in neuroimaging applications. The proposed approach yields device simplicity and flexibility for minimally invasive endoscopy.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-023-34062-6