Distributed fiber optics 3D shape sensing by means of high scattering NP-doped fibers simultaneous spatial multiplexing

Aidana Beisenova, Aizhan Issatayeva, Iulian Iordachita, Wilfried Blanc, Carlo Molardi, Daniele Tosi

Research output: Contribution to journalArticle

Abstract

A novel approach for fiber optics 3D shape sensing, applicable to mini-invasive bio-medical devices, is presented. The approach exploits the optical backscatter reflectometry (OBR) and an innovative setup that permits the simultaneous spatial multiplexing of an optical fibers parallel. The result is achieved by means of a custom-made enhanced backscattering fiber whose core is doped with MgO-based nanoparticles (NP). This special NP-doped fiber presents a backscattering-level more than 40 dB higher with respect to a standard SMF-28. The fibers parallel is built to avoid overlap between NP-doped fibers belonging to different branches of the parallel, so that the OBR can distinguish the more intense backscattered signal coming from the NP-doped fiber. The system is tested by fixing, with epoxy glue, 4 NP-doped fibers along the length of an epidural needle. Each couple of opposite fibers senses the strain on a perpendicular direction. The needle is inserted in a custom-made phantom that simulates the spine anatomy. The 3D shape sensing is obtained by converting the measured strain in bending and shape deformation.

Original languageEnglish
Pages (from-to)22074-22087
Number of pages14
JournalOptics Express
Volume27
Issue number16
DOIs
Publication statusPublished - Jan 1 2019

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multiplexing
fiber optics
nanoparticles
fibers
scattering
needles
backscattering
glues
spine
anatomy
fixing
optical fibers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Distributed fiber optics 3D shape sensing by means of high scattering NP-doped fibers simultaneous spatial multiplexing. / Beisenova, Aidana; Issatayeva, Aizhan; Iordachita, Iulian; Blanc, Wilfried; Molardi, Carlo; Tosi, Daniele.

In: Optics Express, Vol. 27, No. 16, 01.01.2019, p. 22074-22087.

Research output: Contribution to journalArticle

Beisenova, Aidana ; Issatayeva, Aizhan ; Iordachita, Iulian ; Blanc, Wilfried ; Molardi, Carlo ; Tosi, Daniele. / Distributed fiber optics 3D shape sensing by means of high scattering NP-doped fibers simultaneous spatial multiplexing. In: Optics Express. 2019 ; Vol. 27, No. 16. pp. 22074-22087.
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