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Swept-source multimode fiber imaging.


ABSTRACT: 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 [Formula: see text] 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.

SUBMITTER: Lochocki B 

PROVIDER: S-EPMC10195867 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature

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Swept-source multimode fiber imaging.

Lochocki Benjamin B   Ivanina Aleksandra A   Bandhoe Akje A   de Boer Johannes F JF   Amitonova Lyubov V LV  

Scientific reports 20230518 1


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 [Formula: s  ...[more]

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