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Endoscopic Imaging Using a Multimode Optical Fibre Calibrated with Multiple Internal References

  1. 1.
    0552078 - ÚPT 2023 RIV CH eng J - Článek v odborném periodiku
    Jákl, Petr - Šiler, Martin - Ježek, Jan - Cifuentes, Angel S. - Traegaardh, Johanna - Zemánek, Pavel - Čižmár, Tomáš
    Endoscopic Imaging Using a Multimode Optical Fibre Calibrated with Multiple Internal References.
    Photonics. Roč. 9, č. 1 (2022), č. článku 37. E-ISSN 2304-6732
    Grant CEP: GA MŠk EF15_003/0000476; GA MŠk(CZ) LO1212; GA MŠk ED0017/01/01
    Institucionální podpora: RVO:68081731
    Klíčová slova: fibre endoscopy * spatial light modulator * transmission matrix
    Obor OECD: Optics (including laser optics and quantum optics)
    Impakt faktor: 2.536, rok: 2021
    Způsob publikování: Open access
    https://www.mdpi.com/2304-6732/9/1/37

    The interferometric acquisition of the transmission matrix (TM) of a multimode optical fibre (MMF), which is at the heart of multimode fibre-based endoscopic imaging methods, requires using a reference beam. Attempts to use an internal reference, that is to provide the reference in a common pathway geometry through the MMF itself, lead to a speckled reference intensity and consequential occurrence of “blind spots” - locations where insufficient optical power in the reference wave inflicts strong measurement errors. Here we show that combining a relatively small number of TMs, which are measured using different internal references, facilitates a complete elimination of blind spots, and thereby a significant enhancement of the imaging quality.
    Trvalý link: http://hdl.handle.net/11104/0327230

     
     
Počet záznamů: 1