4.6 Article

Composed Multicore Fiber Structure for Extended Sensor Multiplexing with Fiber Bragg Gratings

期刊

SENSORS
卷 22, 期 10, 页码 -

出版社

MDPI
DOI: 10.3390/s22103837

关键词

multiplexing; fiber Bragg gratings; multicore fiber; photosensitivity; shape sensing

资金

  1. European Union [722509]
  2. Marie Curie Actions (MSCA) [722509] Funding Source: Marie Curie Actions (MSCA)

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This paper presents a novel multicore optical waveguide component based on a fiber design optimized for selective grating inscription in multiplexed sensing applications. It enables an increase in optical sensor capacity, extension of sensing length, and preservation of spatial sensing resolution.
A novel multicore optical waveguide component based on a fiber design optimized towards selective grating inscription for multiplexed sensing applications is presented. Such a fiber design enables the increase in the optical sensor capacity as well as extending the sensing length with a single optical fiber while preserving the spatial sensing resolution. The method uses a multicore fiber with differently doped fiber cores and, therefore, enables a selective grating inscription. The concept can be applied in a draw tower inscription process for an efficient production of sensing networks. Along with the general concept, the paper discusses the specific preparation of the fiber-based sensing component and provides experimental results showing the feasibility of such a sensing system.

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