Multicore microstructured optical fibre for sensing applications

Optical Fiber Sensors by Direct Laser Processing: A Review

“…Alternatively, the microstructured hole arrangement of Photonic Crystal Fibers (PCFs) can also be applied [109]. These fibers, when spliced and fused with common optical fibers can behave as sensors [111]. However, multicore fibers are expensive, especially when a specific configuration is desired.…”

[INVITED] New perspectives in photonic crystal fibre sensors

“…Another possibility to sense physical parameters is by means of mode PCF interferometers [38][39][40][41][42][43][44][45][46]. Such devices have centimetre lengths, are highly-stable over time, operate in a broad wavelength range or at extreme temperatures, and exhibit higher strain sensitivities than Bragg gratings.…”

Experimental researches and testing of silica twisted six-GeO2-doped core microstructured optical fiber. Part I: fusion splicing with telecommunication optical fibers and differential mode delay map measurements

“…Multicore configuration, combined with microstructure geometry, provides novel waveguide properties [1][2][3][4][5][6][7][8][9][10] for this group of optical fibers, that makes them attractive for various applications. So, for example, two or more (3,7 or arbitrary N) -core MOFs form N-path fiber optic Mach-Zehnder interferometer [11][12][13][14] , that creates prerequisites for using in alternative bending, curvature, strain and temperature fiber optic sensors [11][12][13][14] . The last one is also presented in another known published work 15 , which proposes to estimate temperature by analyzing laser beam profile image, registered by CCD camera from the output of 3-core MOF, while paper 16 associates 7-large-core MOF with great potentiality for biochemical sensing applications, including environmental monitoring and disease diagnosis, and introduces particular solution for detection of Cadmium II.…”