Presentation + Paper
6 March 2023 Aperiodic multi-core fibers for lens-less endoscopy
Author Affiliations +
Abstract
Lens-less endoscopy based on multi-core fibers (MCFs) with aperiodic core arrangements enables 3D imaging deep inside tissue with reduced imaging artifacts such as higher-order diffraction. With a scalable iterative stack-and-draw process, we fabricated and characterized (e.g. cross-talk) two aperiodic MCFs: (i) a 250 µm fiber with 420 cores and (ii) a 333 µm fiber with 1281 cores. Since lens-less endoscopy is sensitive to dynamic bending, two different approaches to twist the fibers were evaluated: i) rotation of the fiber preform during fiber drawing and (ii) post-production twisting of the MCF within a fiber processing station.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Stephan, E. Scharf, K. Zolnacz, K. Hausmann, M. Ließmann, L. Kötters, D. Ristau, J. Czarske, R. Kuschmierz, and M. Steinke "Aperiodic multi-core fibers for lens-less endoscopy", Proc. SPIE 12372, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXIII, 1237208 (6 March 2023); https://doi.org/10.1117/12.2648872
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KEYWORDS
Multicore fiber

Endoscopy

Design and modelling

Structured optical fibers

Silica

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