New ways to look through multimode optical fibres

David B. Phillips; Shuhui Li; Unė G. Būtaitė; Hlib Kupianskyi; Simon A. R. Horsley; Tomáš Čižmár

doi:10.1117/12.2668358

22 March 2023 New ways to look through multimode optical fibres

David B. Phillips, Shuhui Li, Unė G. Būtaitė, Hlib Kupianskyi, Simon A. R. Horsley, Tomáš Čižmár

Proceedings Volume 12388, Adaptive Optics and Wavefront Control for Biological Systems IX; 123880E (2023) https://doi.org/10.1117/12.2668358
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

Hair-thin strands of multimode optical fibre (MMF) can operate as ultra-low footprint endoscopes–delivering sub-cellular resolution images from deep inside the body at the tip of a fine needle. However, images transmitted through MMFs are unrecognisably distorted. Here we present two new ways to unscramble this light and recover images. Firstly, we describe a new in-situ calibration technique requiring access to only the input end of the fibre–promising a way to image through flexible fibres. Secondly, we describe the design of a new optical element–an ‘optical inverter’–that can unscramble all modes in parallel, offering the potential of single-shot and super-resolution imaging through MMFs.

Conference Presentation

Citation Download Citation

David B. Phillips, Shuhui Li, Unė G. Būtaitė, Hlib Kupianskyi, Simon A. R. Horsley, and Tomáš Čižmár "New ways to look through multimode optical fibres", Proc. SPIE 12388, Adaptive Optics and Wavefront Control for Biological Systems IX, 123880E (22 March 2023); https://doi.org/10.1117/12.2668358

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