4D Optical fibers based on shape-memory polymers

Clément Strutynski (), Marianne Evrard, Frédéric Désévédavy, Grégory Gadret, Jean-Charles Jules, Claire-Hélène Brachais, Bertrand Kibler and Frédéric Smektala
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Clément Strutynski: Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB) UMR 6303 CNRS-Université de Bourgogne
Marianne Evrard: Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB) UMR 6303 CNRS-Université de Bourgogne
Frédéric Désévédavy: Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB) UMR 6303 CNRS-Université de Bourgogne
Grégory Gadret: Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB) UMR 6303 CNRS-Université de Bourgogne
Jean-Charles Jules: Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB) UMR 6303 CNRS-Université de Bourgogne
Claire-Hélène Brachais: Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB) UMR 6303 CNRS-Université de Bourgogne
Bertrand Kibler: Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB) UMR 6303 CNRS-Université de Bourgogne
Frédéric Smektala: Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB) UMR 6303 CNRS-Université de Bourgogne

Nature Communications, 2023, vol. 14, issue 1, 1-11

Abstract: Abstract Adaptative objects based on shape-memory materials are expected to significantly impact numerous technological sectors including optics and photonics. In this work, we demonstrate the manufacturing of shape-memory optical fibers from the thermal stretching of additively manufactured preforms. First, we show how standard commercially-available thermoplastics can be used to produce long continuously-structured microfilaments with shape-memory abilities. Shape recovery as well as programmability performances of such elongated objects are assessed. Next, we open the way for light-guiding multicomponent fiber architectures that are able to switch from temporary configurations back to user-defined programmed shapes. In particular, we show that distinct designs of fabricated optical fibers can maintain efficient light transmission upon completion of multiple temperature-triggered bending/straightening cycles. Such fibers are also programmed into more complex shapes including coils or near 180 ° curvatures for delivering laser light around obstacles. Finally, a shape-memory exposed-core fiber is employed in fiber evanescent wave spectroscopy experiments to optimize the performance of the sensing scheme. We strongly expect that such actuatable fibers with light-guiding abilities will trigger exciting progress of unprecedented smart devices in the areas of photonics, electronics, or robotics.

Date: 2023
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DOI: 10.1038/s41467-023-42355-7

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