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Towards focusing broad band light through a multimode fiber endoscope
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SYSNO ASEP 0509406 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Towards focusing broad band light through a multimode fiber endoscope Author(s) Traegaardh, Johanna (UPT-D) RID, ORCID, SAI
Pikálek, Tomáš (UPT-D) RID, ORCID, SAI
Simpson, Stephen Hugh (UPT-D) RID, SAI
Jákl, Petr (UPT-D) RID, ORCID, SAI
Šiler, Martin (UPT-D) RID, ORCID, SAI
Tyc, Tomáš (UPT-D) ORCID
Čižmár, Tomáš (UPT-D) RID, ORCID, SAINumber of authors 7 Article number 108860J Source Title Adaptive Optics and Wavefront Control for Biological Systems V. Proceedings of SPIE, 10886. - Bellingham : SPIE, 2019 - ISSN 0277-786X - ISBN 978-1-5106-2414-6 Number of pages 8 s. Publication form Print - P Action Conference on Adaptive Optics and Wavefront Control for Biological Systems /5./ Event date 03.02.2019 - 04.02.2019 VEvent location San Francisco Country US - United States Event type WRD Language eng - English Country US - United States Keywords multimode fiber ; multi -photon imaging ; adaptive optics ; GRIN fiber ; spatial light modulator ; spectral interferometry Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EF15_003/0000476 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 UT WOS 000484806700005 EID SCOPUS 85066633916 DOI 10.1117/12.2510449 Annotation When using multimode fibers as high -resolution endoscopes, advanced adaptive optics is needed to overcome the modal dispersion which scrambles the image. Additionally, for non-linear imaging methods, all the wavelengths of a femtosecond laser pulse must be simultaneously focused at the sample plane, with appropriate dispersion compensation, that might vary across the sample area. We investigate the bandwidth of the focused spot for a graded index fiber used as a point scanning imaging device. We demonstrate that with proper compensation for the dispersion of the spatial light modulator this can be >45 nm. We also measure the spectral phase at the sample plane, and demonstrate that this does not vary substantially with spot position. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2020
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