Adaptive wavefront shaping through flexible multicore photonic lantern fibres
Abstract
Holographic micro-endoscopy enables images to be funnelled all-optically through hair-thin strands of optical fibre. Future applications of this technology encompass biomedical imaging within mobile organisms, LiDAR, and industrial inspection. Yet holographic imaging through dynamically flexible optical fibres, called for in many real-world scenarios, represents an ongoing challenge. In this work we demonstrate how a bespoke fibre architecture that we term a 'photonic lantern fibre' offers a way forward. This device benefits from the negligible modal cross-talk of a polarisation-maintaining multicore fibre throughout the majority of its length. A tapered region at one end - known as a photonic lantern - guides light to a short segment of multimode optical fibre. We show how this fibre enables the projection of high-fidelity structured light to the multimode distal fibre facet via wavefront shaping, providing a level of optical control beyond that possible using conventional multicore fibres which suffer from aliasing due to their spatially separated cores. Furthermore, we demonstrate how high-contrast distal focussing can be re-established, anywhere across the output facet, after the multicore fibre is arbitrarily contorted, without access to the distal end. To achieve this we introduce two in-situ bend compensation strategies, that rely on a distally mounted guide-star or analysis of light reflected from the distal facet - offering the future potential for rapid single-shot bend calibration. Our work paves a new route towards the controlled delivery of high-dimensional structured light fields through dynamically flexible optical fibres.
Related
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- Metasurface-on-Lithium-Niobate Architecture for Spin-decoupled Second Harmonic Wavefront Shaping
BibTeX
@misc{kilpatrick2026adaptive,
title = {{Adaptive wavefront shaping through flexible multicore photonic lantern fibres}},
author = {Robert J. Kilpatrick and Alasdair Milne and Kerrianne Harrington and Thomas A. Wright and José C. A. Rocha and Aurélien Benoît and Helen Parker and Chaitanya K. Mididoddi and James M. Stone and Tim A. Birks and Robert R. Thomson and David B. Phillips},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.10290},
eprint = {2611.10290},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.10290},
}
RIS
TY - UNPB
TI - Adaptive wavefront shaping through flexible multicore photonic lantern fibres
AU - Robert J. Kilpatrick
AU - Alasdair Milne
AU - Kerrianne Harrington
AU - Thomas A. Wright
AU - José C. A. Rocha
AU - Aurélien Benoît
AU - Helen Parker
AU - Chaitanya K. Mididoddi
AU - James M. Stone
AU - Tim A. Birks
AU - Robert R. Thomson
AU - David B. Phillips
PY - 2026
DA - 2026/11/06
PB - arXiv
DO - 10.48550/arxiv.2611.10290
UR - https://arxiv.org/abs/2611.10290
AB - Holographic micro-endoscopy enables images to be funnelled all-optically through hair-thin strands of optical fibre. Future applications of this technology encompass biomedical imaging within mobile organisms, LiDAR, and industrial inspection. Yet holographic imaging through dynamically flexible optical fibres, called for in many real-world scenarios, represents an ongoing challenge. In this work we demonstrate how a bespoke fibre architecture that we term a 'photonic lantern fibre' offers a way forward. This device benefits from the negligible modal cross-talk of a polarisation-maintaining multicore fibre throughout the majority of its length. A tapered region at one end - known as a photonic lantern - guides light to a short segment of multimode optical fibre. We show how this fibre enables the projection of high-fidelity structured light to the multimode distal fibre facet via wavefront shaping, providing a level of optical control beyond that possible using conventional multicore fibres which suffer from aliasing due to their spatially separated cores. Furthermore, we demonstrate how high-contrast distal focussing can be re-established, anywhere across the output facet, after the multicore fibre is arbitrarily contorted, without access to the distal end. To achieve this we introduce two in-situ bend compensation strategies, that rely on a distally mounted guide-star or analysis of light reflected from the distal facet - offering the future potential for rapid single-shot bend calibration. Our work paves a new route towards the controlled delivery of high-dimensional structured light fields through dynamically flexible optical fibres.
ER -