Optical fiber bundles: Ultra-slim light field imaging probes

A. Orth, M. Ploschner, E. R. Wilson, I. S. Maksymov, B. C. Gibson

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)
37 Downloads (Pure)


Optical fiber bundle microendoscopes are widely used for visualizing hard-to-reach areas of the human body. These ultrathin devices often forgo tunable focusing optics because of size constraints and are therefore limited to two-dimensional (2D) imaging modalities. Ideally, microendoscopes would record 3D information for accurate clinical and biological interpretation, without bulky optomechanical parts. Here, we demonstrate that the optical fiber bundles commonly used in microendoscopy are inherently sensitive to depth information. We use the mode structure within fiber bundle cores to extract the spatio-angular description of captured light rays-the light field-enabling digital refocusing, stereo visualization, and surface and depth mapping of microscopic scenes at the distal fiber tip. Our work opens a route for minimally invasive clinical microendoscopy using standard bare fiber bundle probes. Unlike coherent 3D multimode fiber imaging techniques, our incoherent approach is single shot and resilient to fiber bending, making it attractive for clinical adoption.

Original languageEnglish
Article numbereaav1555
Pages (from-to)1-10
Number of pages10
JournalScience Advances
Issue number4
Publication statusPublished - Apr 2019

Bibliographical note

Copyright © 2019 The Authors, some rights reserved. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


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