Abstract
An optical fiber φ-OFDR shape sensor with a submillimeter spatial resolution of 200 µm was demonstrated by using femtosecond-laser-induced permanent scatter array (PS array) multicore fiber (MCF). A PS array was successfully inscribed in each slightly twisted core of the 400-mm-long MCF. The two-dimensional (2D) and three-dimensional (3D) shapes of the PS-array-inscribed MCF were successfully reconstructed by using PS-assisted φ-OFDR, vector projections, and the Bishop frame based on the PS-array-inscribed MCF. The minimum reconstruction error per unit length of the 2D and 3D shape sensor was 2.21% and 1.45%, respectively.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Natural Science Foundation of Guangdong Province
Science and Technology Innovation Commission of Shenzhen
Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things
Subject
Atomic and Molecular Physics, and Optics
Cited by
1 articles.
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