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Proceedings Paper

3D shape sensing medical needle based on the multiplexing of optical backscattering reflectometry
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Paper Abstract

Optical Backscattering Reflectometry (OBR) can be used for one-dimensional distributed strain sensing of medical needles. To achieve 3D shape sensing the needle should be equipped with multiple optical fibers. A feasible configuration can be done using two pairs of parallel optical fibers, which will measure the strain in two directions perpendicular to a needle axis. However, OBR is limited to a single fiber sensing because of its inability to discriminate scattering patterns of different fibers. To achieve multiplexing, it is proposed to use nanoparticle doped fibers (NP-doped) with high scattering power and splice them to standard single-mode (SMF) pigtails with different lengths. As a result of such configuration, the NP-doped fibers, which are used as sensing fibers, are spatially separated by standard fibers.

Paper Details

Date Published: 20 November 2019
PDF: 6 pages
Proc. SPIE 11191, Advanced Sensor Systems and Applications IX, 111910A (20 November 2019); doi: 10.1117/12.2537302
Show Author Affiliations
Carlo Molardi, Nazarbayev Univ. (Kazakhstan)
Aizhan Issatayeva, Nazarbayev Univ. (Kazakhstan)
Aidana Beisenova, Nazarbayev Univ. (Kazakhstan)
Wilfried Blanc, Univ. Côte d’Azur (France)
Daniele Tosi, Nazarbayev Univ. (Kazakhstan)

Published in SPIE Proceedings Vol. 11191:
Advanced Sensor Systems and Applications IX
Tiegen Liu; Gang-Ding Peng; Zuyuan He, Editor(s)

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