Optical fiber sensor has been widely used in many areas due to its intrinsicadvantsges such as lightweight, compact size.high sensitivities, immunity to electromagnetic interference, corrosion resistance, and so on.Regarding to configuration, fiber sensors can usually be classified into two categories: point sensors and distributed sensors.Distributed fiber sensors are usually achieved by using Rayleigh. Raman or Brillouin scattering, while point sensors are constructed based on fiber gratings, all sorts of interferometers and other short-length-interaction effects by moons of various post-processing techniques.Recently, a new processing method.i.e..twisting optical fibers into helical shapes, attracts increasing attention due to the unique properties of helical-sfructured fibers.Such special structure fibers have been demonstrated great potentials for both communication and sensing applications.In this talc, we will introduce some of our rear works on helical -structured mu Moore fiber based sensors.By using C02 laser processing system, we fabricated different types of helical -structured multicore fibers (HSMCFs) and then
constructed HSMCFs based sensors with different configurations fa temperature, strain and torsion measurement.
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AuthorIEEE IPS Singapore Chapter Archives
October 2019
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