@inproceedings{3554c80ef05d404bb78bf75eac5b0970,
title = "3D shape sensing medical needle based on the multiplexing of optical backscattering reflectometry",
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.",
keywords = "3D shape sensing, Multiplexing setup, Nanoparticles doped fibers, Optical Backscattering Reflectometry, Optical fibers, Strain sensing",
author = "Carlo Molardi and Aizhan Issatayeva and Aidana Beisenova and Wilfried Blanc and Daniele Tosi",
year = "2019",
month = jan,
day = "1",
doi = "10.1117/12.2537302",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Tiegen Liu and Gang-Ding Peng and Zuyuan He",
booktitle = "Advanced Sensor Systems and Applications IX",
address = "United States",
note = "Advanced Sensor Systems and Applications IX 2019 ; Conference date: 21-10-2019 Through 22-10-2019",
}