Vernier Multicore Optical Fiber Sensors Optimized for Curvature Sensing
Por:
May-Arrioja, DA, Camarillo-Avilés, A, Cuando-Espitia, N, Velázquez-Benítez, AM, Antonio-López, JE, Amezcua-Correa, R, Hernández-Cordero, J
Publicada:
15 ene 2025
Resumen:
Implementing the Vernier effect in optical fiber sensors (OFSs) provides an enhanced sensitivity by cascading two interferometric devices. Despite the attractive advantages of Vernier sensing approaches, a formal analysis of the conditions required for optimizing their performance has not been fully addressed. Herein, we show that given an operational bandwidth (Delta lambda(op)), a Vernier configuration can be properly designed with a spectral shift (Delta lambda(V)) that matches the experimental operational bandwidth. To demonstrate our optimization approach, we use highly coupled multicore fibers (MCFs) as building blocks for constructing a Vernier arrangement for curvature sensing. Our results show that the MCF sensing devices are ideal for optimizing the performance of a Vernier arrangement, as demonstrated for a curvature range from 0 to1.58 m(-1). For a targeted spectral shift of 200 nm, we achieved a blue shift of 206 nm. Moreover, a similar spectral shift toward longer wavelengths was obtained by simply exchanging the positions of the fiber devices. This approach using MCF-based Vernier configurations can be further extended to optimize the performance of temperature, pressure, and refractive index fiber sensors.
Filiaciones:
Ctr Invest Opt, Aguascalientes 20200, Ags, Mexico
Consejo Nacl Humanidades Ciencias & Tecnol CONAHCy, Ciudad De Mexico 03940, Mexico
Univ Guanajuato, Elect Dept, CONAHCyT, Salamanca 36885, Mexico
UNAM, Inst Ciencias Aplicadas & Tecnol, Cd Univ, Ciudad De Mexico 04510, Mexico
Univ Cent Florida, Coll Opt & Photon, CREOL, Orlando 32816, FL USA
UNAM, Inst Invest Mat, Cd Univ, Ciudad De Mexico 04510, Mexico
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